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Engine Control Module --, 2015 MY

WARNING: This page is about a different car, the 2015 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
DTC Error Message Malfunction Criteria and Threshold Value Secondary Parameters with Enable Conditions Monitoring Time Length Frequency of checks, MIL Illumination Diagnostic Procedure
P0047 Turbocharger/Supercharger Boost Control "A" Circuit Low Boost Pressure Actuator short to ground
  • Diagnostic signal from power stage > 8 - 18 A
  • ECM power stage = On state
 0.5 s
  • continuous
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
P0048 Turbocharger/Supercharger Boost Control "A" Circuit High Boost Pressure Actuator short to battery / open circuit
P0071 Ambient Air Temperature Sensor Range/Performance Ambient Air Temperature Sensor cross check
  • number of detected faults >= 6 [-]
CROSS CHECKS FOR FAULT DETECTION:
  • AAT vs. ECT @ cylinder head > 40 K
  • AAT vs. IAT > 35 K
  • AAT vs. FTS > 35 K
  • AAT vs. ECT @ radiator outlet > 35 K
  • AAT vs. ECT @ cylinder block > 35 K
  • AAT vs. EOT > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once
  • 2 DCY
 -- Check the Ambient Air Temperature Sensor -G17-. Refer to Outside Air Temperature Sensor -G17-, CHECKING .
P0072 Ambient Air Temperature Sensor Circuit Low CAN: Ambient Air Temperature Sensor CAN communication with Ambient Air Temperature Sensor
  • ambient air temperature signal: short to ground failure
  • communication time after ignition on > 2 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the Ambient Air Temperature Sensor -G17-. Refer to Outside Air Temperature Sensor -G17-, CHECKING .
P0073 Ambient Air Temperature Sensor Circuit High CAN: Ambient Air Temperature Sensor CAN communication with Ambient Air Temperature Sensor
  • ambient air temperature signal: short to battery / open circuit failure
P0087 Fuel Rail/System Pressure - Too Low Fuel Rail Pressure System functional check
  • positive control deviation step 1 > 17000 - 50000 kPa
  • Engine Speed > 400 - 4000 [rpm]
  • Rail Pressure controller via pressure control valve = Active
 0.8 s
  • continuous
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
  • positive control deviation step 2 > 15000 kPa
  • Pressure Control Valve >= 34500 -- 240000 kPa
  • Rail Pressure controller via pressure control valve = Active
 30 s
  • Minimum Fuel Rail Pressure < 0.00 - 12500 kPa
  • Engine Speed > 400 - 630 [rpm]
  • Rail Pressure controller via pressure control valve = Active
 0.3 s
  • positive control deviation step 1 > 17000 - 50000 kPa
  • Engine Speed > 400 - 4000 [rpm]
  • metering unit flow >= 9500 - 41470 mm3 /s
  • rail pressure controller via fuel meetering unit = Active
 0.8 s
  • positive control deviation step 2 > 15000 kPa
  • metering unit flow >= 9500 - 41470 mm3 /s
  • rail pressure controller via fuel meetering unit = Active
  • minimum rail pressure < 0.00 - 12500 kPa
  • Engine Speed > 400 - 630 [rpm]
  • rail pressure controller via fuel meetering unit = Active
 0.3 s
  • minimum rail pressure < 0.00 - 12500 kPa
  • Engine Speed > 400 - 630 [rpm]
  • rail pressure controller during regulation mode change over = Active
P0088 Fuel Rail/System Pressure - Too High Fuel Rail Pressure System functional check
  • negative control deviation < -25000 kPa
  • pressure control valve <= 20000 kPa
  • Rail Pressure controller via pressure control valve = Active
 1 s
  • continuous
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING
  • Max Rail Pressure > 21500 kPa
  • rail pressure controller via pressure control valve = Active
 0.2 s
  • negative control deviation < -30000 - -20000 kPa
  • engine speed > 1000 - 2500 [rpm]
  • metering unit flow <= -600 mm3 /s
  • fuel mass injection > 0.003 g/rev
  • fuel temperature > -7 [°C]
  • rail pressure controller via fuel meetering unit = Active
 2 s
  • maximum rail pressure > 215000 kPa
  • rail pressure controller via fuel meetering unit = Active
 0.3 s
  • maximum rail pressure > 215000 kPa
  • rail pressure controller during regulation mode change over = Active
 0.2 s
P0090 Fuel Pressure Regulator 1 Control Circuit/Open Fuel Metering Unit Open Circuit
  • Signal Voltage < 4.7 [V]
  • ECM Power stage = permanently high
 0.2 s
  • continuous
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .
P0091 Fuel Pressure Regulator 1 Control Circuit Low Fuel Metering Unit short to ground
  • Signal Voltage < 2.97 [V]
  • ECM Power stage = permanently high
 0.3 s
  • continuous
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .
P0092 Fuel Pressure Regulator 1 Control Circuit High Fuel Metering Unit short to battery
  • Signal Current > 3.0 A
  • Power stage = permanently low
 0.2 s
  • continuous
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .
P00AF  Turbocharger/Supercharger Boost Control "A" Module Performance Boost Pressure Actuator functional check: stuck close
  • control deviation > 8 [%]
OR
  • control deviation< -8[%]
  • actual position <= 30 [%]
 CASE 1: NO COLDSTART DETECTED:
  • calculated engine temperature > 0 [°C]
OR
  • EGT downstream catalyst > 125 [°C]
OR
  • VGT position > 60 %
CASE 2: COLDSTART DETECTED:
  • calculated engine temperature < 0 [°C]
  • EGT downstream catalyst < 125 [°C]
  • VGT position < 60 %
  • time after engine start > 60 s
 7.7 s
  • continuous
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
Boost Pressure Actuator functional check: stuck open
P00C6 Fuel Rail Pressure Too Low - Engine Cranking Bank 1 Fuel Rail Pressure System functional check
  • Rail pressure < 12000 - 23000 kPa
  • Engine Speed @ Start >= 70 [rpm]
  • AAT >= - 7 [°C]
  • Barometric pressure >= 75 kPa
  
  • once / DCY
  • 2 DCY
 -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator -N276-, CHECKING .-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
P0101 Mass or Volume Air Flow "A" Circuit Range/Performance Mass Air Flow Sensor rationality check
  • MAF ratio calculated from: MAF measured vs. MAF modeled < 0.85 [-]
  • Boost pressure > 80 [ kPa]
  • Engine speed 1000 - 2500 [rpm]
  • barometric pressure > 50 [kPa]
  • rate of change IAT <= 5.00 [K/s]
  • ECT @ cylinder head 60 - 110 [°C]
  • time after engine start > 1 [s]
  • fuel mass injection < 0.50 [mg/rev]
  • throttle valve position 93.99 - 101 [%]
  • EGR valve position 99.9 - 399.99 [%]
  • swirl control93.99 - 101 [%]
 5 s
  • continuous
  • 2 DCY
 -- Check Mass Air Flow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING .
  • MAF ratio calculated from: MAF measured vs. MAF modeled > 1.15 [-]
  • boost pressure < 200 [kPa]
  • engine speed 1000 - 2500 [rpm]
  • barometric pressure > 50 [kPa]
  • rate of change IAT <= 5 [K/s]
  • ECT @ cylinder head 60 - 110 [°C]
  • time after engine start > 1 [s]
  • fuel mass injection < 0.5 [mg/rev]
  • throttle valve position 93.99 - 101 [%]
  • EGR valve position 99.9 - 399.99 [%]
  • swirl control93.99 - 101 [%]
 10 s
P0102 Mass or Volume Air Flow "A" Circuit Low Mass Air Flow Sensor signal range check
  • mass air flow sensor signal < 83 [μs]
   1 s
  • continuous
  • 2 DCY
 -- Check Mass Air Flow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING .
P0103 Mass or Volume Air Flow "A" Circuit High Mass Air Flow Sensor signal range check
  • mass air flow sensor signal > 4500 [μs]
  • engine speed >= 640 [rpm]
 1 s
  • continuous
  • 2 DCY
 -- Check Mass Air Flow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING .
P0104 Mass or Volume Air Flow "A" Circuit Intermittent Mass Air Flow Sensor internal check
  • MAF sensor signal period failed
   0.8 s
  • continuous
  • 2 DCY
 -- Check Mass Air Flow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING .
P0111 Intake Air Temperature Sensor 1 Circuit Range/Performance Intake Air Temperature Sensor Cross Check
  • number of detected faults >= 6 [-]
CROSS CHECKS FOR FAULT DETECTION:
  • IAT vs. ECT @ cylinder head > 35 K
  • IAT vs. FTS > 35 K
  • IAT vs. AAT > 35 K
  • IAT vs. ECT @ radiator outlet > 35 K
  • IAT vs. ECT @ cylinder block > 35 K
  • IAT vs. EOT > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed >0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 60 s
  • once / DCY
  • 2 DCY
 -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0112 Intake Air Temperature Sensor 1 Circuit Low Intake Air Temperature Sensor short to ground
  • Signal voltage < 0.1 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0113 Intake Air Temperature Sensor 1 Circuit High Intake Air Temperature Sensor short to battery / open circuit
  • Signal voltage > 4.83 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check IAT Sensor -G42-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0116 Engine Coolant Temperature Sensor 1 Circuit Range/Performance Engine Coolant Temperature Sensor @ Cylinder Head cross check
  • number of detected faults >= 6
CROSS CHECKS FOR FAULT DETECTION:
  • ECT @ cylinder head vs. IAT > 35 K
  • ECT @ cylinder head vs. FTS > 35 K
  • ECT @ cylinder head vs. AAT > 40 K
  • ECT @ cylinder head vs. ECT @ radiator outlet > 35 K
  • ECT @ cylinder head vs. ECT @ cylinder block > 35 K
  • " ECT @ cylinder head vs. EOT" > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 60 s
  • once / DCY
  • 2 DCY
 -- Check Engine Temperature Control Sensor -G694-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
Engine Coolant Temperature Sensor @ Cylinder Head rationality check / warm up plausibility
  • ECT increase < 2 [°C]
  • ECT < 66 [°C]
  • evaluation timer> 79 - 1201 [s]
  • engine coolant start temperature < 66 [°C]
  • AAT > -7 [°C]
OR
  • AAT < -7 [°C]
  • for time < 5.0 [s]
TIMER IS INCREMENTED IF:
  • engine speed > 1400 [rpm]
  • fuel quantity> 0.015 [g/rev]
    
P0117 Engine Coolant Temperature Sensor 1 Circuit Low Engine Coolant Temperature Sensor @ Cylinder Head short to ground
  • Signal voltage < 0.22 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
P0118 Engine Coolant Temperature Sensor 1 Circuit High Engine Coolant Temperature Sensor @ Cylinder Head short to battery / open circuit
  • Signal voltage > 4.92 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
P0121 Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Throttle Position Sensor out of range
  • Position sensor signal 0.15 - 0.3 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING
  • Position sensor signal > 1 [V]
  • IAT 0 - 80 [°C]
  • modeled EGT upstream turbocharger -3000 - 3000 [°C]
  • calculated engine temperature 20 - 95 [°C]
  • time after engine start >= 0[ms]
  • engine speed < 16384 [rpm]
  • barometric pressure > 0.00 [kPa]
 0.2 s
  • multiple
  • 2 DCY
P0122 Throttle/Pedal Position Sensor/Switch "A" Circuit Low Throttle Position Sensor out of range low
  • Position sensor signal < 0.15 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check the Throttle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING
P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Throttle Position Sensor out of range high
  • Position sensor signal >= 4.85 [V]
P0128 Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Engine Cooling System Rationality Check
  • ECT @ cylinder head < 66 [°C]
 MONITOR ENTRY CONDITIONS:
  • engine speed >= - 1 [rpm]
  • ECT @ cylinder head @ start- 7 - 56 [°C]
START OF ECT MODEL CALCULATION:
  • time after engine start60 -327.7 [s]
  • ECT @ cylinder head minus ECT @ cylinder head @ start> - 327[K]
END OF ECT MODEL CALCULATION:
  • modeled ECT> 76 [°C]
CONDITIONS AT FAULT DECISION:
  • end of ECT model calculation reached
  • time since start of ECT model calculation< 960 [s]
RESTART OF ECT MODEL CALCULATION:
  • max. ECT @ cylinder head> 66 [°C]
  • ECT @ cylinder head decreases in same DCY < 56[°C]
 0 s
  • Multiple
  • 2 DCY
 -- Check the thermostat for proper operation (stuck open or damaged). Refer to the repair information for Diagnostic.-- Check Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING .
P0130 O2 Sensor Circuit Oxygen Sensors front signal range check SHORT TO BATTERY PLUS:
  • Virtual Mass (VM) > 3 [V]
OR
  • Nernst voltage (UN) > 4 [V]
OR
  • Adjustment Voltage (IA/IP) > 1.5 [V]
  • Heater control = active
 2 s
  • continuous
  • 2 DCY
 -- Check Heated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
SHORT TO GROUND:
  • Virtual Mass (VM) < 2 [V]
OR
  • Nernst voltage (UN) < 1.75 [V]
OR
  • Adjustment IA/IP < 0.3 [V]
P0132 O2 Sensor Circuit High Voltage Oxygen Sensors front out of range high
  • Signal voltage > 3.2 [V]
  • O2S signal front valid
  • O2S front pump current active
  • for time > 2 s
  • heater control active
  • Dewpoint exceeded
  • O2 heater temperature 720 - 840 [°C]
  • Modeled exhaust pressure < 170 kPa
 2 s
  • multiple
  • 2 DCY
 -- Check Heated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P0133  O2 Sensor Circuit Slow Response Oxygen Sensors front dynamic check
  • Time to reach 0% - 60% oxygen > 4 s
  • Heater control active
  • DPF regeneration = not active
  • minimum fuel quantity to activate > 0.012 g/rev
  • range for deviation of fuel quantity -0.328 - 0.328 g/rev/s
  • for time > 2 s
  • deviation of fuel quantity until fuel cut off <-0.15 g/rev/s
  • Time to reach fuel cutoff < 1.5 s
  • Fuel quantity in fuel cutoff < 0.001 g/rev
  • Engine speed > 1100 [rpm]
 10 s
  • continuous
  • 2 DCY
 -- Check Heated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P0134 O2 Sensor Circuit No Activity Detected Oxygen Sensors Heater front oxygen sensor heating - feedback check
  • Integrated oxygen sensor temperature > 339990.2 - 1114045.9 K
  • oxygen sensor heating = not active
  • modeled temperature @ oxygen sensor mount point > 32 K
  • time after engine start > 3 s
 0 s
  • multiple
  • 2 DCY
 -- Check Heated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P0135 O2 Sensor Heater Circuit Oxygen Sensors Heater front short to battery
  • signal current > 2.2 A
  • Dewpoint exceeded
 0.5 s
  • continuous
  • 2 DCY
 -- Check Heated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
Oxygen Sensors Heater front short to ground
  • signal voltage < 2.15 [V]
Oxygen Sensors Heater front open circuit
  • signal voltage > 4.4 [V]
Oxygen Sensors Heater front rationality check
  • O2S ceramic temp. > 840 [°C]
  • Fuel cutoff = not active
  • for time >0.1 s
  • Dewpoint exceeded
  • Heater control = closed loop
 30 s
  • multiple
  • 2 DCY
Oxygen Sensors Heater front rationality check
  • O2S ceramic temp. < 720 [°C]
 60 s
P016A Excessive Time To Enter Closed Loop Air/Fuel Ratio Control Fuel System Fuel Mass Observer: feedback check
  • Control Intervention = 0 %
  • Fuel Cut-Off = not Active
  • Engine = Running
  • AAT > -7 [°C]
  • Barometric Pressure > 75 kPa
  • Lambda Deviation > 1 [-]
 5 s
  • continuous
  • 2 DCY
 -- Excessive Time To Enter Closed Loop Air/Fuel Ratio Control -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an intake air leak or check for low Fuel pressure. Refer to the repair information for Fuel System test procedures and cautions.
P0171  System Too Lean Fuel System functional check: fuel system failure
  • Fuel Mass Correction Value = < -0.01 [g/rev]
  • Fuel Mass Observer = Active
  • Rate of Change, Injector Quiality < 0.03 [g/rev/s]
  • ECT @ Cylinder Head = -200 - 200 [°C]
  • Barometric Pressure > 75 kPa
  • AAT > -7 [°C]
  • Engine Speed = 570 - 1500 [rpm]
  • Injector Quality 0.01 - 0.08 [g/rev]
 5 s
  • Multiple
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an intake air leak or check for low Fuel pressure. Refer to the repair information for Fuel System test procedures and cautions.
P0172  System Too Rich Fuel System functional check: fuel system failure
  • Fuel Mass Correction Value = > 0.01 [g/rev]
  • Fuel Mass Observer = Active
  • Rate of Change, Injector Quiality < 0.03 [g/rev/s]
  • ECT @ Cylinder Head = -200 - 200 [°C]
  • Barometric Pressure > 75 kPa
  • AAT > -7 [°C]
  • Engine Speed = 570 - 1500 [rpm]
  • Injector Quality > 0.01 - 0.08 [g/rev]
 5 s
  • Multiple
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an intake air leak or check for low Fuel pressure. Refer to the repair information for Fuel System test procedures and cautions.
P0181 Fuel Temperature Sensor "A" Circuit Range/Performance Fuel Temperature Sensor cross check
  • Number of Detected Faults >= 6 [-]
CROSS CHECKS FOR FAULT DETECTION:
  • FTS vs. ECT @ cylinder head > 35 K
  • FTS vs. IAT > 35K
  • FTS vs. AAT > 35K
  • FTS vs. ECT @ radiator outlet > 35 K
  • FTS vs. ECT @ cylinder block > 35 K
  • FTS vs. EOT > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ condition < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • 2 DCY
 -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING .
P0182 Fuel Temperature Sensor "A" Circuit Low Fuel Temperature Sensor short to ground
  • Signal Voltage < 0.10 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING .
P0183 Fuel Temperature Sensor "A" Circuit High Fuel Temperature Sensor short to battery / open circuit
  • Signal Voltage > 4.9 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING .
P0191 Fuel Rail Pressure Sensor "A" Circuit Range/Performance Fuel Rail Pressure Sensor rationality check
  • adaptation factor of Fuel Rail Pressure Regulator Valve > 125.31 [%]
  • Fuel temperature 10 - 70 [°C]
  • Fuel temperature (depending on rail pressure) <= 70 [°C]
  • rail pressure set point 50000 - 130000 kPa
  • rail pressure set point gradient -20000 - 20000 kPa/s
  • vehicle speed > 12 mph
  • Pressure Control Valve electric current gradient < 2000 mA/s
 0.13 s
  • once/DCY
  • 2 DCY
 -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor.-- Check Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
  • adaptation factor of Fuel Rail Pressure Regulator Valve < 83.20 [%]
Fuel Pressure Regulator Valve offset plausibility check
  • signal voltage < 0.428 [V]
  • delay time till start of monitoring during afterrun > 20 s
  • fuel temperature > -50 [°C]
  • fuel high pressure control valve electric current <= 0.15 A
  • afterrun of engine active
 0.1 s
  • signal voltage > 0.613 [V]
P0192 Fuel Rail Pressure Sensor "A" Circuit Low Fuel Rail Pressure Sensor short to ground
  • Signal voltage < 200 mV
   0.1 s
  • continuous
  • 2 DCY
 -- Check the pressure in the fuel system for out of spec conditions before diagnosing the pressure sensor.-- Check Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
P0193 Fuel Rail Pressure Sensor "A" Circuit High Fuel Rail Pressure Sensor short to battery / open circuit
  • Signal voltage > 4800 mV
   0.1 s
  • continuous
  • 2 DCY
 -- Check Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING .
P01BA Engine Oil Temperature Sensor "B" Range/Performance Engine Oil Temperature Sensor cross check
  • number of detected faults >= 6
CROSS CHECKS FOR FAULT DETECTION:
  • EOT vs. ECT @ cylinder head > 35 K
  • EOT vs. IAT > 35 K
  • EOT vs. FTS > 35 K
  • EOT vs. AAT > 35 K
  • EOT vs. ECT @ radiator outlet > 35 K
  • EOT vs. ECT @ cylinder block > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 60 s
  • once
  • 2 DCY
 -- Check Oil Temperature Sensor 2 -G664-. Refer to Oil Temperature Sensor 2 -G664-, CHECKING
P01BB Engine Oil Temperature Sensor "B" Circuit Low Engine Oil Temperature Sensor short to ground
  • signal voltage < 0.2 [V]
  • for time >= 5[s]
   5 s
  • continuous
  • 2 DCY
 -- Check Oil Temperature Sensor 2 -G664-. Refer to Oil Temperature Sensor 2 -G664-, CHECKING
P01BC Engine Oil Temperature Sensor "B" Circuit High Engine Oil Temperature Sensor short to battery / open circuit
  • Signal voltage > 4.85 [V]
  • for time >= 5.00 [s]
   5 s
  • continuous
  • 2 DCY
 -- Check Oil Temperature Sensor 2 -G664-. Refer to Oil Temperature Sensor 2 -G664-, CHECKING
P01BD Engine Oil Temperature Sensor "B" Circuit Intermittent/Erratic Engine Oil Temperature Sensor rationality check / warm up plausibility
  • Oil temperature increase < 3 [K]
  • Oil temperature < 66 [°C]
  • Evaluation timer > 59 - 251 [s]
 TIMER IS INCREMENTED IF:
  • Engine speed > 1400 [rpm]
  • Injection quantity 0.015 [g/rev].
  • ECT at cylinder head > -50 [°C]
  • oil temperature sensorready, no fault
  • engine running
  • for time > 0.0 [s]
 0 s
  • once
  • 2 DCY
 -- Check Oil Temperature Sensor 2 -G664-. Refer to Oil Temperature Sensor 2 -G664-, CHECKING
P01E3 Engine Coolant Temperature Sensor 3 Circuit Engine Coolant Temperature Sensor @ Cylinder Block short to battery / open circuit
  • Signal voltage > 4.92 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theEngine Temperature Control Sensor -G694-. Refer to Engine Temperature Control Sensor -G694-, CHECKING
P01E4 Engine Coolant Temperature Sensor 3 Circuit Range/Performance Engine Coolant Temperature Sensor @ Cylinder Block cross check
  • number of detected faults >= 6
CROSS CHECKS FOR FAULT DETECTION
  • ECT @ cylinder block vs. ECT @ cylinder head > 35 K
  • ECT @ cylinder block vs. IAT > 35 K
  • ECT @ cylinder block vs. FTS > 35 K
  • ECT @ cylinder block vs. AAT > 35 K
  • ECT @ cylinder block vs. ECT > 35 K@ radiator outlet
  • ECT @ cylinder block vs. EOT > 35 K
:		 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once
  • 2 DCY
 -- Check theEngine Temperature Control Sensor -G694-. Refer to Engine Temperature Control Sensor -G694-, CHECKING
P01E5 Engine Coolant Temperature Sensor 3 Circuit Low Engine Coolant Temperature Sensor @ Cylinder Block short to ground
  • Signal voltage < 0.22 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theEngine Temperature Control Sensor -G694-. Refer to Engine Temperature Control Sensor -G694-, CHECKING
P0201 Injector Circuit/Open - Cylinder 1 Injection Valves open or shorted circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Valve = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0202 Injector Circuit/Open - Cylinder 2 Injection Valves open or shorted circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Value = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0203 Injector Circuit/Open - Cylinder 3 Injection Valves open or shorted circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Value = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 3 Fuel Injector -N32-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0204 Injector Circuit/Open - Cylinder 4 Injection Valves open or shorted circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Value = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 4 Fuel Injector -N33-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0205 Injector Circuit/Open - Cylinder 5 Injection Valves open or shorted circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Value = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 5 Fuel Injector -N83-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0206 Injector Circuit/Open - Cylinder 6 Cylinder 6 Injector Circuit OPEN CIRCUIT:
  • Signal Voltage > 60 [V]
  • Injection Value = Switched On
 4 injection cycles
  • continuous
  • 2 DCY
 -- Check Cylinder 6 Fuel Injector -N84-. Refer to FUEL INJECTORS, CHECKING .
SHORT TO BATTERY PLUS (LOW SIDE):
  • signal voltage failed
SHORT CIRCUIT OVER LOAD:
  • signal voltage > 30 [V]
SHORT CIRCUIT LOW SIDE:
  • Deviation between set and actual signal voltage after charging, Injector voltage > 30%
  • deviation between set and actual signal voltage before charging, Injector voltage > 45%
P0234 Turbocharger / Supercharger "A" Overboost Condition Boost Pressure Control rationality check low
  • diff. set value boost pressure vs. actual boost pressure value < -22 - -100 [kPa]
  • boost pressure control closed loop
  • injection quantity > 0.006 - 0.103 [g/rev]
 4.5 s
  • multiple
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
  • boost pressure > 160 - 300 [kPa]
  • boost pressure control open loop
  • injection quantity < 0.006 - 0.103 [g/rev]
  • diff. set value boost pressure vs. actual boost pressure value: depending on engine speed and fuel quantity < -100 - -10 [kPa]
  • boost pressure control closed loop
  • injection quantity > 0.01 - 0.1 [g/rev]
AND
  • injection quantity < 0.02 [g/rev]
OR
  • engine speed < 1650 [rpm]
 10 s
  • 2 DCY
P0236 Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance Boost Pressure Sensor rationality check
  • diff. barometric sensor signal vs. boost pressure signal > 14 kPa
  • Engine speed < 250 [rpm]
 0.2 s
  • once
  • 2 DCY
 -- Check Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0237 Turbocharger/Supercharger Boost Sensor "A" Circuit Low Boost Pressure Sensor short to ground
  • Sensor voltage < 0.40 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0238 Turbocharger/Supercharger Boost Sensor "A" Circuit High Boost Pressure Sensor short to battery / open circuit
  • Sensor voltage > 4.9 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check Charge Air Pressure Sensor -G31-. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
P0263  Cylinder 1 Contribution/Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P0266  Cylinder 2 Contribution / Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P0269  Cylinder 3 Contribution / Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P026A  Charge Air Cooler Efficiency Below Threshold Charge Air Cooler functional check: cooler efficiency
  • Filtered charge air cooler efficiency < 0.7[-]
 MONITOR ENTRY CONDITIONS:
  • vehicle speed >= 25 [mph]
  • air mass flow 100 - 400[kg/h]
  • ECT @ cylinder head50 - 95 [°C]
  • pressure ratio of boost and barometric pressure >= 1.35 [-]
  • throttle position n.a. %
  • cooler bypass valve control value n.a.
  • for time > n.a.
  • difference between modeled intake air temperature and AAT>= 8[K]
  • injection quantity >= 0.015[g/rev]
  • barometric pressure > 75[kPa]
  • AAT > - 7[°C]
CONDITION AT FAULT DECISION:
  • monitor entry conditions fullfilled
  • stored heat under engine hood: not detected
  • vehicle speed> 3 - 25[mph]
  • for time > 20 - 600 [s]
 40 s
  • multiple
  • 2 DCY
 -- Check for road debris on the right or left intercooler obstructing air flow. If any other related (turbocharger) fault codes are set, diagnose those codes first. -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
P0272  Cylinder 4 Contribution / Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P0275  Cylinder 5 Contribution / Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P0278  Cylinder 6 Contribution / Balance Fuel Balance Control Monitoring adaptive value limit high
  • injection balancing amount per cylinder > 0.0005 - 0.006 g/rev
  • engine speed > target idle+/- 200 [rpm]
  • engine speed < 3000 [rpm]
  • injection quantity 0.002 - 0.060 g/rev
OR
  • injection quantity 0 - 0.06 g/rev
  • lambda value > 1.18 [-]
  • barometric pressure > 80 kPa
  • calculated engine temperature > -7 [°C]
 0 s
  • multiple
  • 1 DCY
 -- Check Cylinder 1 Fuel Injector -N30-. Refer to FUEL INJECTORS, CHECKING .-- Check cylinder compression. Refer to repair information.
Zero Fuel Calibration adaptive value limit high
  • calibration value of injector energizing time > 224 - 412 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Zero Fuel Calibration adaptive value limit low
  • calibration value of injector energizing time < 109 - 167 μs
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
  • deviation to target rail pressure 1500 - 2000 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
Injection Valves internal check
  • Diagnostic signal from power stage = Failure
   0.5 s
  • once / DCY
  • 2 DCY
P0299 Turbocharger/Supercharger "A" Underboost Condition Boost Pressure Control rationality check high
  • diff. set value boost pressure vs. actual boost pressure value: depending on ECT > 30 - 99.9 [kPa]
  • Boost pressure control closed loop
  • injection quantity > 0.015 g/rev
  • engine speed > 1650 [rpm]
 6 s
  • multiple
  • 2 DCY
 -- Check for disconnected or damaged air duct. -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .-- Check Charge Air Pressure Sensor --. Refer to Charge Air Pressure Sensor -G31- / Intake Air Temperature Sensor -G42-, CHECKING .
  • diff. set value boost pressure vs. actual boost pressure value: depending on engine speed and fuel quantity > 35 - 100 [kPa]
  • Boost pressure control closed loop
  • injection quantity > 0.006 - 0.103 g/rev
AND
  • injection quantity < 0.015 g/rev
OR
  • engine speed < 1650 [rpm]
 12 s
  • boost pressure< 0 - 85 [kPa]
  • Boost pressure control open loop
  • injection quantity < 0.006 - 0.103 g/rev
P0300 Random/Multiple Cylinder Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • number of cylinders with detected misfire > 1
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check for fuel contamination.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check for a plugged fuel filter or restricted/kinked line. Refer to repair information
P0301  Cylinder 1 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0302  Cylinder 2 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0303  Cylinder 3 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0304  Cylinder 4 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0305  Cylinder 5 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0306  Cylinder 6 Misfire Detected Misfire instantaneous engine speed monitoring
  • counted misfire per cylinder > 180
  • number of combustion cycles tested >= 220
  • Engine speed 600 - 1650 [rpm]
  • injection quantity 0.005 - 0.028 g/rev
  • calculated engine temperature >= 30 [°C]
  • vehicle speed <= 53 mph
  • Time after engine start > 5 s
  • gear shifting not active
  • DPF regeneration n.a.
  • gradient of engine speed <= 750 [rpm]
  • for time 2 s
  • injection quantity gradient <= 0.016 g/rev
  • for time 2 s
 < 440 Engine Rev.
  • once/ DCY
  • 2 DCY
 -- Check Fuel Injectors --. Refer to FUEL INJECTORS, CHECKING .-- Check the Fuel Pressure. NOTE: The Fuel is under HIGH pressure. Refer to the repair information for procedure before disconnecting any system components.-- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check engine compression
P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance Crankshaft Position Sensor rationality check
  • Counted teeth vs. reference > 200 [-]
OR
  • Monitoring reference gap failure
  • Engine speed > 550 [rpm]
 0.5 s
  • continuous
  • 2 DCY
 -- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
P0322 Ignition/Distributor Engine Speed Input Circuit No Signal Crankshaft Position Sensor signal activity check
  • camshaft signals > 3 [-]
AND
  • camshaft signals no signal
  • Engine speed > 550 [rpm]
 0.5 s
  • continuous
  • 2 DCY
 -- Check Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .
P0381 Glow Plug/Heater Indicator Circuit CAN: Glow Plug Indicator signal plausibility check
  • glow plug indicator control (sent message) vs. glow plug indicator (received message) status not equal [-]
  • glow plug indicator active
  • CAN fault not detected [-]
 0.5 s
  • once / DCY
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0401  Exhaust Gas Recirculation "A" Flow Insufficient Detected EGR System rationality check
  • Control deviation EGR -45 - -200 g/rev
  • EGR control = closed loop
  • Fuel quantity, = 0.006 - 0.017 g/rev
  • Engine speed 660 - 2500 [rpm]
  • DPF regeneration not active
  • air mass reference value <maximum modelled
 10 s
  • continuous
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P0402  Exhaust Gas Recirculation "A" Flow Excessive Detected EGR System rationality check
  • MAF ratio calculated from: MAF measured vs. MAF modeled > 1.29
  • engine running
  • Engine speed, 1100 - 2500 [rpm]
  • boost pressure < 200 kPa
  • barometric pressure > 50 kPa
  • ECT @ cylinder head 60 - 110 [°C]
  • rate of change IAT <= 20 K/s
  • time after engine start > 5 s
  • fuel mass injection -0.5 - 0.5 mg/rev
  • throttle valve position 93.99 - 105 %
  • swirl control 93.99 - 105 %
  • EGR valve position >= 100 %
 4 s
  • continuous
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P0403 Exhaust Gas Recirculation "A" Control Circuit EGR Actuator short to ground
  • signal current > 8 - 18 [A]
  • ECM power stage on
 0.5 s
  • continuous
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
EGR Actuator short to battery plus
EGR Actuator electrical error
EGR Actuator functional check: stuck close
  • control deviation> 10 [%]
OR
  • control deviation < -10 [%]
  • actual position < = 17 [%]
   4.7 s
EGR Actuator functional check: stuck open
  • control deviation > 10 [%]
OR
  • control deviation< -10 [%]
  • actual position> 17 [%]
  
P0405 Exhaust Gas Recirculation Sensor "A" Circuit Low EGR Position Sensor out of range low
  • Position sensor signal < 0.25 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P0406 Exhaust Gas Recirculation Sensor "A" Circuit High EGR Position Sensor out of range high
  • Position sensor signal > = 4.75 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P040B Exhaust Gas Recirculation Temperature Sensor "A" Circuit Range/Performance Exhaust Gas Recirculation Temperature Sensor plausibility check
  • measured sensor temperature - mean value of modelled temperature < -90 - -40 K
  • time after engine start > 500 s
  • ECT @ Cylinder Head > 65 [°C]
  • EGR Valve <= 93.01%
  • DPF regeneration = not active
 10 s
  • Multiple
  • 2 DCY
 -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING .
Exhaust Gas Recirculation Temperature Sensor cross check
  • number of detected faults >= 4
CROSS CHECKS FOR FAULT DETECTION:
  • TEGR vs. EGT upstream Catalyst > 40 K
  • TEGR vs. EGT downstream Catalyst > 40 K
  • TEGR vs. EGT downstream DPF > 40 K
  • TEGR vs. EGT upstream Turbocharger > 40 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start: CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C].
OR
  • ECT @ radiator outlet @ start < 35 [°C].
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once / DCY
  • 2 DCY
P040C Exhaust Gas Recirculation Temperature Sensor "A" Circuit Low EGR Temperature Sensor short to ground
  • Signal voltage < 0.68 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING .
P040D Exhaust Gas Recirculation Temperature Sensor "A" Circuit High EGR Temperature Sensor short to battery / open circuit
  • Signal voltage > 2.61 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING .
P0420  Catalyst System Efficiency Below Threshold Bank 1 NMHC Catalyst functional check: conversion efficiency
  • ratio of measured and modeled heat quantity < 0.3
 START OF MEASUREMENT WINDOW:
  • modeled catalyst surface temperature 210 - 1000 [°C]
CONDITIONS FOR MEASUREMENT WINDOW:
  • engine running
  • DPF regeneration active
  • for time < 320 s
END OF MEASUREMENT WINDOW:
  • integrated post injection > 30 g
CONDITIONS AT FAULT DECISION:
  • average exhaust gas mass flow (during measurement time) < 600 kg/h
 0 s
  • multiple
  • 1 DCY
 -- Check the Catalytic Converter. Refer to CATALYTIC CONVERTER, CHECKING .
P046C Exhaust Gas Recirculation Sensor "A" Circuit Range/Performance EGR Position Sensor out of range
  • Position sensor signal > 1.05 [V]
  • AAT = -3000 - 3000 [°C]
  • calculated engine temperature -20 - 3000 [°C]
  • time after engine start >= 0 s
  • engine speed < 16384 [rpm]
  • modeled EGT upstream turbocharger = -3000 - 3000 [°C]
  • barometric pressure > 0 kPa
 0.2 s
  • multiple
  • 2 DCY
 -- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
  • position sensor signal 0.25 - 0.35 [V]
   0.5 s
  • continuous
  • 2 DCY
P0501 Vehicle Speed Sensor "A" Range/Performance CAN: Vehicle Speed Sensor CAN communication with Vehicle Speed Sensor
  • speed sensor signal: plausibility error failure
   480 ms.
  • multiple
  • 2 DCY
 -- Check the speed signal input. Refer to repair information for ABS Diagnosis of wheel speed sensor.
P0502 Vehicle Speed Sensor "A" Circuit Low CAN: Vehicle Speed Sensor CAN communication with Vehicle Speed Sensor
  • speed sensor signal: electrical error failure
P0506 Idle Air Control System RPM Lower Than Expected Idle Controller rationality check
  • difference between target and measured idle engine speed < 10%
  • engine running
  • ECT @ cylinder head -7 - 107 [°C]
  • vehicle speed < 1 [mph]
  • engine speed > 300 [rpm]
 25 s
  • multiple
  • 2 DCY
 -- Check for any TSB's that may apply to this fault. If multiple codes are set, perform diagnosis for any fuel system, engine speed sensor, MAF, EGR, APP, Throttle control or MAP related faults first.-- Check the Throttle Valve Control Module. Refer to Throttle Valve Control Module -J338-, CHECKING .
P0507 Idle Air Control System RPM Higher Than Expected Idle Controller rationality check
  • difference between target and measured idle engine speed > 10%
  • engine running
  • ECT @ cylinder head -7 - 107 [°C]
  • vehicle speed < 1 [mph]
  • engine speed > 300 [rpm]
 25 s
  • multiple
  • 2 DCY
 -- Check for any TSB's that may apply to this fault. If multiple codes are set, perform diagnosis for any fuel system, engine speed sensor, MAF, EGR, APP, Throttle control or MAP related faults first.-- Check the Throttle Valve Control Module. Refer to Throttle Valve Control Module -J338-, CHECKING .
P050E Cold Start Engine Exhaust Temperature Too Low SCR Catalyst plausibility check
  • calculated SCR - temperature < 200 - 150 [°C]
  • AAT > -40 [°C]
  • SCR system defrosting not active
  • modeled exhaust gas heat quantity > 120 - 200 kJ
 0 s
  • once / DCY
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 4 -G648-. Refer to Exhaust Gas Temperature Sensor 1 -G235-, CHECKING .
P052F Glow Plug Control Module 1 System Voltage Glow Plug Control Module internal hardware check (electrical adjustment communication, voltage supply)
  • voltage supply via LIN message 0 [V].
  • time after ignition on > 0.5 [s].
 0.5 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0544 Exhaust Gas Temperature Sensor Circuit EGT Sensor upstream Turbocharger short to battery / open circuit
  • Signal voltage > 2.61 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check the Exhaust Gas Temperature Sensor. Refer to Exhaust Gas Temperature Sensor 1 -G235-, CHECKING
P0545 Exhaust Gas Temperature Sensor Circuit Low EGT Sensor upstream Turbocharger short to ground
  • Signal voltage < 0.68 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check the Exhaust Gas Temperature Sensor. Refer to Exhaust Gas Temperature Sensor 1 -G235-, CHECKING
P054E Idle Control System - Fuel Quantity Lower Than Expected Idle Controller functional check
  • expected fuel quantity - actual fuel quantity< 0.003 [g/rev]
  • engine running
  • accelerator pedal position = 0 [%]
  • selected gear n.a
OR
  • brake pedal n.a
  • gear shiftingnot activated
  • vehicle speed < 1 [mph]
  • engine speed 600 - 1500 [rpm]
  • barometric pressure > 74 - 75 [kPa]
  • ECT @ cylinder head > -8 - -7 [°C]
  • IAT > -8 - -7 [°C]
 10 s
  • multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module. Refer to Throttle Valve Control Module -J338-, CHECKING .-- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P054F Idle Control System - Fuel Quantity Higher Than Expected Idle Controller functional check
  • expected fuel quantity - actual fuel quantity> 0.018 - 0.033 [g/rev]
  • engine running
  • accelerator pedal position =0 [%]
  • selected gear n.a
OR
  • brake pedal n.a
  • gear shiftingnot activated
  • vehicle speed < 1 [mph]
  • engine speed 600 - 1500 [rpm]
  • barometric pressure > 74 - 75 [kPa]
  • ECT @ cylinder head > -8 - -7 [°C]
  • IAT > -8 - -7 [°C]
 10 s
  • multiple
  • 2 DCY
 -- Check the Throttle Valve Control Module. Refer to Throttle Valve Control Module -J338-, CHECKING .-- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
P0604 Internal Control Module Random Access Memory (RAM) Error ECM: EEPROM functional check
  • EEPROM error failed
   0.5 s
  • continuous
  • 2 DCY
 -- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
P0605 Internal Control Module Read Only Memory (ROM) Error ECM: Electronic Throttle Control Module internal self test: check of read only memory
  • test result failed
   0.5 s
  • continuous
  • 2 DCY
 -- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
P0606 Control Module Processor Fuel System rationality check
  • number of camshaft revolutions with no or irregular post injection 1 shut offs > 10.00
CONDITION FOR IRREGULAR POST INJECTION SHUT OFF:
  • deviation of injection angle at begin of injection > 3.01 [°CRK]
OR
  • injector energizing time deviation > 10 [μs]
OR
  • injector discharge time < 50 [μs]
OR
  • injector discharge time > 200 [μs]
  • cold start detected
  
  • continuous
  • 2 DCY
 -- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
Fuel System rationality check
  • number of camshaft revolutions with no or irregular post injection 2 shut offs > 10.00
CONDITION FOR IRREGULAR POST INJECTION SHUT OFF:
  • deviation of injection angle at begin of injection > 3.01 [°CRK]
OR
  • injector energizing time deviation > 10 [μs]
OR
  • injector discharge time < 50 [μs]
OR
  • injector discharge time > 200 [μs]
Injection Valves internal check
  • diagnostic signal from power stage failed
  • injection valve switched on
 10 s
  • continuous
  • 2 DCY
Injection Valves internal check 4 [injections]
  • continuous
  • 2 DCY
Injection Valves internal check none
  • 2 DCY
EGR Actuator under voltage
  • signal voltage < 3.4 [V]
  • ECM power stage on
 0.5 s
  • continuous
  • 2 DCY
Boost Pressure Actuator under voltage
  • continuous
  • 2 DCY
Intake Manifold Runner Flap Actuator under voltage
  • continuous
  • 2 DCY
Throttle Actuator under voltage
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: accelerator position
  • comparison voltage sensor 1 with sensor 2 implausible
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: vehicle acceleration
  • calculated vehicle acceleration implausible
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: vehicle acceleration
  • calculated vehicle acceleration while no injection demanded implausible
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: injection during fuel cut off
  • fuel injection (without driver demand) active
  • accelerator pedal position = 0%
 0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: engine speed limitation
  • engine speed > 1500 [rpm]
  • engine speed limitation active
 0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module communication check
  • communication between monitoring module and function controller failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module communication check
  • SPI communication incorrect
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • communication with monitoring module failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • monitoring module response time check failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • SPI communication with monitoring module failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • hardware not ready
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • monitoring module switch off path test failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • system test result failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • check for requested injection failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • time monitoring failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • undervoltage detection failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module internal hardware check
  • overvoltage detection
  • failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: A/D converter
  • comparison reference voltage with sensor voltage incorrect
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: A/D converter
  • test voltage / test pulse check failed
   0.5 s
  • continuous
  • 2 DCY
ECM: Electronic Throttle Control Module function monitoring: engine speed deviation
  • difference between calculated and internal engine speed > 400 [rpm]
  • internal engine speed > 600 [rpm]
 0.5 s
  • continuous
  • 2 DCY
ECM: WDA function monitoring: WDA
  • internal check failure
   0.02 s
  • continuous
  • 2 DCY
ECM: EEPROM EEPROM check
  • check failed
   0.5 s
  • continuous
  • 2 DCY
CAN: Internal Fault CAN controller RAM check
  • RAM error memory checksum error
  • initialization phase
 none
  • once / DCY
  • 2 DCY
P0607 Control Module Performance Oxygen Sensors front functional check
  • Supply voltage for IC < 9 [V]
  • Dewpoint exceeded
 2 s
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If no other codes have set:-- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
Oxygen Sensors front signal range check
  • Oxygen sensor adaptation > 0.2 [V]
  • time after engine start > 10 s
  • O2S power stage adaption active
CASE 1:
  • engine speed 500 - 3000 [rpm]
  • injection quantity 0.002 - 0.03 g/rev
CASE 2:
  • engine speed 2000 - 3000 [rpm]
  • injection quantity 0.03 - 0.045 g/rev
 0.2 s
  • multiple
  • 2 DCY
Oxygen Sensors front signal range check
  • oxygen sensor adaption value <-0.2 [V]
  • time after engine start > 10 s
  • O2S power stage adaption active
CASE 1:
  • engine speed 500 - 3000 [rpm]
  • injection quantity 0.002 - 0.03 g/rev
CASE 2:
  • engine speed 2000 - 3000 [rpm]
  • injection quantity 0.03 - 0.045 g/rev
Barometric Pressure Sensor short to ground
  • Sensor voltage < 0.94 [V]
   3 s
  • continuous
  • 2 DCY
Barometric Pressure Sensor short to battery / open circuit
  • Sensor voltage > 4.76 [V]
ECM: Oxygen Sensor front communication Module communication check
  • Internal communication failed
  • dew point exceeded
 5 s
P0634 PCM/ECM/TCM Internal Temperature "A" Too High SCR Dosing Valve over temperature
  • power stage temperature > 150 [°C]
   2 s
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P0634 resets:-- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
Fuel Pressure Regulator Valve over temperature
  • power stage temperature > 150 [°C]
 0.3 s
Fuel Metering Unit over temperature
  • power stage temperature > 150 [°C]
 0.2 s
EGR Cooler Bypass Valve over temperature
  • power stage temperature > 150 [°C]
 1.1 s
Oxygen Sensors Heater front over temperature
  • power stage temperature > 170 [°C]
 5 s
EGR Actuator over temperature
  • power stage temperature > 175 [°C]
  • ECM power stage = on
 655.4 s
Boost Pressure Actuator over temperature 0.5 s
Intake Manifold Runner Flap Actuator over temperature
Throttle Actuator over temperature
P0641 Sensor Reference Voltage "A" Circuit/Open ECM: Sensor Reference Circuit A signal range check
  • signal voltage deviation> +/- 0.3
   50 ms.
  • continuous
  • 2 DCY
 -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
P064C Glow Plug Control Module Glow Plug Control Module internal check
  • message from Glow Plug Contol Module incorrect
  • Glow system active
 4 s
  • continuous
  • 2 DCY
 -- Check for correct ECM software installed.-- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0651 Sensor Reference Voltage "B" Circuit/Open ECM: Sensor Reference Circuit B signal range check
  • signal voltage deviation> +/- 0.3[V]
   50 ms.
  • continuous
  • 2 DCY
 -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
P066A Cylinder 1 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P066B Cylinder 1 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P066C Cylinder 2 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P066D Cylinder 2 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P066E Cylinder 3 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P066F Cylinder 3 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0671 Cylinder 1 Glow Plug Circuit/Open Glow Plug Circuit current monitoring
  • Glow system <= 2.19 [A]
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0672 Cylinder 2 Glow Plug Circuit/Open
P0673 Cylinder 3 Glow Plug Circuit/Open
P0674 Cylinder 4 Glow Plug Circuit/Open
P0675 Cylinder 5 Glow Plug Circuit/Open
P0676 Cylinder 6 Glow Plug Circuit/Open
P067A Cylinder 4 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P067B Cylinder 4 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P067C Cylinder 5 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P067D Cylinder 5 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P067E Cylinder 6 Glow Plug Control Circuit Low Glow Plug current monitoring
  • Glow current >= 70 [A]
  • message from Glow Plug Contol Module incorrect
  • Glow system = active
 0.05 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • glow current >= 37.1 [A]
 0.8 s
P067F Cylinder 6 Glow Plug Control Circuit High Glow Plug internal check
  • message from Glow Control Module incorrect
  • Glow system = active
 0.8 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0683 Glow Plug Control Module to PCM Communication Circuit LIN: Glow Plug Control Module reading back sent message
  • LIN message no feedback
  • time after ignition on > 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P0697 Powertrain - Computer and Auxiliary Outputs - ISO/SAE Controlled ECM: Sensor Reference Circuit C signal range check
  • signal voltage deviation> +/- 0.3[V]
   50 ms.
  • continuous
  • 2 DCY
 -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623- Refer to the repair information for procedure.
P06B0 Sensor Power Supply "A" Circuit/Open SCR control module detects short circuit of its sensor supply voltage
  • Sensor supply voltage < 0.2 or > 53 [V].
  • time after ignition on > 1000 ms
 2000 ms.
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
P06C5 Cylinder 1 Glow Plug Incorrect Glow Plug functional check: proper glow plug mounted
  • internal resistance < 0.11; > 1.15[Ohm]
  • EOT > n.a [°C]
  • engine speed < n.a [rpm]
  • injection quantity < n.a [g/rev]
  • derivation of target glow plug voltage < 5 [V/s]
  • difference battery voltage between 2 measurements< n.a[V]
  • glow plug electrical resistance > 100 [mOhm]
 2 s
  • multiple
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
P06C6 Cylinder 2 Glow Plug Incorrect
P06C7 Cylinder 3 Glow Plug Incorrect
P06C8 Cylinder 4 Glow Plug Incorrect
P06C9 Cylinder 5 Glow Plug Incorrect
P06CA Cylinder 6 Glow Plug Incorrect
P06E5 Glow Plug Control Module 1 Performance Glow Plug Control Module offset plausibility check
  • ground offset < = -1.76 [V]
  • Glow system active
 0.9 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
  • ground offset >= 1.76 [V]
P150A Engine Off Time rationality check
  • difference between ECM time and IPC time > 12 [s]
  • Engine Off
 1 s
  • once / DCY
  • 2 DCY
 -- Check ALL power and grounds at the ECM. Refer to the wiring diagrams for location at the ECM. The ECM must have a battery power supply when the key is off to run the timer and system checks. If power and grounds are present, replace the ECM.
P169A ECM: Transport Mode vehicle in transport mode
  • transport mode active
 FOR ACTIVATION:
  • during ECM keep alive-time after ignition off
  • vehicle speed < 3 [mph]
  • engine speed < = 0 [rpm]
  • max trip mileage since initial vehicle start-up< 62.15 miles
  • production mode not active
 0 s
  • 1 DCY
 -- Transport mode can be turned off with a scan tool or will automatically switch off after 50 mph on vehicle.
P2002  Diesel Particulate Filter Efficiency Below Threshold Diesel Particulate Filter functional check: DPF efficiency CASE 1:
  • PM Sensor signal current > 12 μA
CASE 2:
  • PM Sensor signal current < 3 μA
 MONITOR ENTRY CONDITIONS:
  • DPF regeneration not active
  • Calculated DPF loading 0 - 300 g
  • exhaust gas speed @ PM sensor 0 - 50 m/s
  • exhaust gas pressure @ PM sensor 50 - 135 [kPa]
  • exhaust gas temperature @ PM sensor 50 - 400 [°C]
  • engine n.a
  • time after engine start >= n.a. s
  • dew point exceeded
  • NOx-concentration <= 200 ppm
OR
  • PM sensor temperature < 250 [°C]
CONDITIONS AT FAULT DECISION: CASE 1:
  • calculated sensor response time completed
  • PM Sensor current (IDE) < 80 μA
CASE 2:
  • calculated sensor response time not completed
  • PM Sensor current (IDE) @ start waiting time 80 μA
  • waiting time until PM Sensor regeneration 60 s
  • PM Sensor regeneration completed
 1 trigger event
  • multiple
  • 2 DCY
 -- Check theExhaust Pressure Sensor -G450-. Refer to Differential Pressure Sensor -G505-, CHECKING .-- If the pressure sensors are OK, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool
Diesel Particulate Filter functional check: missing substrate
  • pressure difference between measured and modeled value < 0 - 163.27 kPa
  • modeled DPF temperature < 500 [°C]
  • DPF regeneration not active
  • modeled DPF temperature 200 - 450 [°C]
  • ECT @ cylinder head > 60 [°C]
  • exhaust gas flow rate > n.a.
  • simulated soot load n.a.[g]
  • simulated soot load < n.a.[g]
  • exhaust gas flow rate n.a [m3 /h]
  • exhaust gas flow rate 400 - 3276.7 [m3 /h]
  • engine running
  • DPF regeneration n.a.
  • for time > n.a.
  • modeled DPF temperature > n.a [°C]
  • AAT > -7 [°C]
 2 s
P2004 Intake Manifold Runner Control Stuck Open Intake Manifold Runner Flap Actuator functional check: stuck open
  • Control deviation > 10 [%]
OR
  • Control deviation < -10 [%]
  • Actual position <= 12 [%]
   4.7 s
  • continuous
  • 2 DCY
 -- Check theIntake Flap Motor --. Refer to Intake Flap Motor -V157-, CHECKING .
P2006 Intake Manifold Runner Control Stuck Closed Intake Manifold Runner Flap Actuator functional check: stuck close
  • Control deviation > 10 [%]
OR
  • Control deviation < -10 [%]
  • Actual position >12 [%]
   4.7 s
  • continuous
  • 2 DCY
 -- Check theIntake Flap Motor --. Refer to Intake Flap Motor -V157-, CHECKING .
P2009 Intake Manifold Runner Control Circuit Low Intake Manifold Runner Flap Actuator short to ground
  • signal current > 8 - 18 [A]
  • ECM power stage on
 0.5 s
  • continuous
  • 2 DCY
 -- Check theIntake Flap Motor --. Refer to Intake Flap Motor -V157-, CHECKING .
P2010 Intake Manifold Runner Control Circuit High Intake Manifold Runner Flap Actuator short to battery plus
  • signal current > 8 - 18 [A]
  • ECM power stage on
 0.5 s
  • continuous
  • 2 DCY
 -- Check theIntake Flap Motor --. Refer to Intake Flap Motor -V157-, CHECKING .
Intake Manifold Runner Flap Actuator electrical error
P2016 Intake Manifold Runner Position Sensor/Switch Circuit Low Intake Manifold Runner Flap Position Sensor signal range check low
  • position sensor signal < 0.15 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theIntake Flap Motor --. Refer to Intake Flap Motor -V157-, CHECKING .
P2017 Intake Manifold Runner Position Sensor/Switch Circuit High Intake Manifold Runner Flap Position Sensor signal range check high
  • position sensor signal >= 4.85 [V]
  
P2031 Exhaust Gas Temperature Sensor Circuit EGT Sensor upstream Catalyst short to battery / open circuit
  • Signal voltage > 2.61 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 2 -G448-. Refer to Exhaust Gas Temperature Sensor 2 -G448-, CHECKING .
P2032 Exhaust Gas Temperature Sensor Circuit Low EGT Sensor upstream Catalyst short to ground
  • Signal voltage < 0.68 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 2 -G448-. Refer to Exhaust Gas Temperature Sensor 2 -G448-, CHECKING .
P203A Reductant Level Sensor Circuit SCR Tank Level Sensor open circuit / short to ground
  • signal voltage < 0.1 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theReducing Agent Tank Sensor -G684-. Refer to Reducing Agent Tank Sensor -G684-, CHECKING .
P203B Reductant Level Sensor Circuit Range/Performance SCR Tank Level Sensor rationality check SIGNAL VOLTAGE WITHIN FAULT RANGE:
  • fault range 1: 0.6 - 0.9 [V]
  • fault range 2: 1.03 - 1.365 [V]
  • fault range 3: 1.525 - 1.9 [V]
  • fault range 4: 2.04 - 2.4 [V]
  • fault range 5: 2.6 - 3.105 [V]
  • fault range 6: 3.205 - 3.7 [V]
   3 s
  • continuous
  • 2 DCY
 -- Check theReducing Agent Tank Sensor -G684-. Refer to Reducing Agent Tank Sensor -G684-, CHECKING .
P203D Reductant Level Sensor Circuit High SCR Tank Level Sensor short to battery pus
  • Signal Voltage > 4.8 [V]
   3 s
  • continuous
  • 2 DCY
 -- Check theReducing Agent Tank Sensor -G684-. Refer to Reducing Agent Tank Sensor -G684-, CHECKING .
P2047 Reductant Injection Valve Circuit/Open SCR Dosing Valve open circuit
  • Signal Voltage < 4.7 [V]
  • ECM Power stage = Off
 2 s
  • continuous
  • 2 DCY
 -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING
P2048 Reductant Injection Valve Circuit Low SCR Dosing Valve short to ground
  • Signal Voltage < 2.97 [V]
or
  • Signal Current > 1.6 A
  • ECM Power stage = Off
or
  • ECM Power stage = On
 2 s
  • continuous
  • 2 DCY
 -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING
P2049 Reductant Injection Valve Circuit High SCR Dosing Valve short to battery
  • Signal Current > 1.8 A
OR
  • Analog measure < 0.2 A
  • ECM power stage = On
 3 s OR 2 s
  • continuous
  • 2 DCY
 -- Check the Reduction Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING
P204A Reductant Pressure Sensor Circuit SCR Pressure Sensor open circuit / short to ground
  • Signal voltage < 0.1 [V]
   3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING .
P204B Reductant Pressure Sensor Circuit Range/Performance SCR Pressure Sensor rationality check
  • actual pressure Reduction Agent delivery system > 50.00 kPa or < -50.00 kPa (before pressure build up)
  • EGT downstrean DPF > 100 [°C]
  • AAT > -30 [°C]
  • SCR tank temperature >-7 [°C]
  • Engine speed > 600 [rpm]
  • SCR pump not active
 0 s
  • once / DCY
  • 2 DCY
 -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING .
P204D Reductant Pressure Sensor Circuit High SCR Pressure Sensor short to battery plus
  • Signal voltage > 4.8 [V]
   3 s
  • continuous
  • 2 DCY
 -- Check the Reduction Agent Pressure Sensor --. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING .
P205A Reductant Tank Temperature Sensor Circuit SCR Tank Temperature Sensor short to battery / open circuit
  • Signal voltage > 4.63 V
   3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Tank Temperature Sensor --. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING
P205B Reductant Tank Temperature Sensor Circuit Range/Performance SCR Tank Temperature Sensor rationality check CASE 1:
  • difference between reductant temperature and AAT < -30 [°C]
CASE 2:
  • difference between reductant temperature and AAT < -30 [°C]
  • reductant temperature increase while heating SCR tank < 1.5 K
  • Engine off time > 25200 s
  • AAT vs. ECT cross check monitoring = Ready
CONDITIONS AT FAULT DECISION: CASE 1:
  • AAT >= 25 [°C]
CASE 2:
  • AAT < 25 [°C]
  • SCR Tank heating time 1500 s
 0.5 s
  • once / DCY
  • 2 DCY
 -- Check the Reducing Agent Tank Temperature Sensor --. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING
rationality check CASE 1:
  • difference between reductant temperature and AAT < 30 [°C]
CASE 2:
  • difference between reductant temperature and AAT > 30 [°C]
  • reductant temperature increase while heating SCR tank < 1.5 K
  • Engine off time > 25200 s
  • AAT vs. ECT cross check monitoring ready
CONDITIONS AT FAULT DECISION: CASE 1:
  • AAT >= -20 [°C]
CASE 2:
  • AAT < -20 [°C]
  • SCR Tank heating time 1500 s
P205C Reductant Tank Temperature Sensor Circuit Low SCR Tank Temperature Sensor short to ground
  • Signal voltage < 0.18 [V]
   3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING
P207F Reductant Quality Performance SCR Catalyst functional check: proper reductant in tank
  • SCR adaption value after reductant refill event > 2.5 [-]
  • reductant refill event detected
 0 s
  • continuous
  • DCY
 -- This code will set after a refill event (based on fluid level change) and ECM does not see a change in NOx during dosing. Check fluid in tank for contamination, wrong color (AD Blue is clear in color) or foreign substance used in refill. Also when AD Blue is stale, it will have an ammonia odor. Fresh AD Blue is nearly odorless. Drain tank completely and refill with fresh AD Blue if contamination is present.-- Check the NOx Sensor Module 1 - 2 --. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING -- Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING
P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance EGT Sensor upstream Turbocharger plausibility check
  • measured sensor temperature - mean value of modeled temperature > 250 or < -200 [°K]
  • DPF regeneration not active
  • time after engine start > 300 s
  • EOT -50 - 1050 [°C].
  • simulated exhaust gas sensor temperature -50 - 1050 [°C].
  • PM sensor n.a.
 500 s
  • multiple
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor --. Refer to Exhaust Gas Temperature Sensor 1 -G235-, CHECKING .
EGT Sensor upstream Turbocharger cross check
  • number of detected faults >= 4
CROSS CHECKS FOR FAULT DETECTION:
  • EGT upstream Turbocharger vs. EGT upstream Catalyst > 40 [°K]
  • EGT upstream Turbocharger vs. EGT downstream Catalyst > 40 [°K]
  • EGT upstream Turbocharger vs. EGT downstream DPF > 40 [°K]
  • EGT upstream Turbocharger vs. TEGR > 40 [°K]
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • Engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time <0.8 s
PHASE 2 (EVALUATION FAULT RESULT): BLOCKHEATER @ START: CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start
  • n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C].
OR
  • ECT @ radiator outlet @ start < 35 [°C].
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start <90 [°K]
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet <5 [°K]
  • ECT @ cylinder head @ start - min ECT @ cylinder head <5 [°K]
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time. 20 s
  • AAT @ start - AAT @ conditon < 5 [°K]
  • IAT @ start - IAT @ condition < 5 [°K]
IF INDEPENDENT CAR HEATER INTEGRATED :
  • time after engine start > 5 s
  • Independent Car Heater not active.
    
P2084 Exhaust Gas Temperature Sensor Circuit Range/Performance EGT Sensor upstream Catalyst plausibility check
  • measured sensor temperature - mean value of modeled temperature < -100 [°K]
  • DPF regeneration not active
  • time after engine start > 300 s
  • EOT -50 - 1050 [°C].
  • simulated exhaust gas sensor temperature -50 - 1050 [°C].
  • PM sensor n.a.
 500 s
  • multiple
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 2 -G448-. Refer to Exhaust Gas Temperature Sensor 2 -G448-, CHECKING .
EGT Sensor upstream Catalyst cross check
  • number of detected faults >= 4 [-]
CROSS CHECKS FOR FAULT DETECTION:
  • EGT Sensor upstream Catalyst vs. EGT upstream Turbocharger > 40 [°K]
  • EGT Sensor upstream Catalyst vs. EGT downstream Catalyst > 40 [°K]
  • EGT Sensor upstream Catalyst vs. EGT downstream DPF > 40 [°K]
  • EGT Sensor upstream Catalyst vs. TEGR > 40 [°K]
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT):Blockheater @ start: CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C].
OR
  • ECT @ radiator outlet @ start < 35 [°C].
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once / DCY
  • 2 DCY
P208A Reductant Pump Control Circuit/Open SCR Pump Control open circuit CURRENT:
  • total current of reductant pump electric phases 1, 2, 3 < 0.9 A
OR VOLTAGE:
  • voltage on electric phases 2, 3 = 0 [V]
 CURRENT:
  • SCR pump Active
  • calculated SCR pump rotation speed = 0
VOLTAGE:
  • SCR pump not Active
  • electric phase 1 activated
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING
P208B Reductant Pump Control Range/Performance SCR: Control Module SCR pump does not rotate with expected speed
  • Rotation < 400 [rpm]
  • for time > 5 s
  • SCR pump = On
 2000 ms
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING
P208C Reductant Pump Control Circuit Low SCR Pump Control short to ground CURRENT:
  • total current of reductant pump electric phases 1, 2, 3 > 30 A
OR VOLTAGE:
  • voltage on electric phases 1 <= 0 [V]
 CURRENT:
  • SCR pump Active
VOLTAGE:
  • SCR pump not Active
  • electric phase 1 activated
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING
P208D Reductant Pump Control Circuit High SCR Pump Control short to battery CURRENT:
  • total current of reductant pump electric phases 1, 2, 3 > 20 A
OR VOLTAGE:
  • voltage on electric phases 2, 3 > 0 [V]
 CURRENT:
  • SCR pump Active
VOLTAGE:
  • SCR pump not Active
  • electric phases not activated
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING
P208E Reductant Injection Valve Stuck Closed SCR Dosing Valve rationality check
  • Missing number of signal peaks > 200
  • reductant metering control = active
  • barometric pressure = 70 - 130 kPa
  • SCR system pressure = 350 - 650 kPa
  • Dosing valve coil temperature = 10 - 120 [°C]
 100 - 700 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING
P20B9 Reductant Heater "A" Control Circuit/Open SCR Heater Circuit 1 open circuit
  • power stage current < 1 A
OR
  • internal detection via pull up resistor
  • ECM Power Stage = On
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Tank Heater -Z102- Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING
P20BB Reductant Heater "A" Control Circuit Low SCR Heater Circuit 1 short to ground
  • high side current > 14 A
  • ECM Power stage = On
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Tank Heater -Z102- Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING
P20BC Reductant Heater "A" Control Circuit High SCR Heater Circuit 1 short to battery CURRENT:
  • high side current < 1; > 14 A
OR
  • low side current > 30 A
OR RESISTOR:
  • internal detection via pull up resistor
 CURRENT:
  • ECM Power Stage = On
RESISTOR:
  • ECM Power Stage = Off
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Tank Heater -Z102- Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING
P20BD Reductant Heater "B" Control Circuit/Open SCR Heater Circuit 2 open circuit
  • power stage current < 1 A
OR
  • internal detection via pull up resistor
  • ECM power stage = On
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104- Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING
P20BF Reductant Heater "B" Control Circuit Low SCR Heater Circuit 2 short to ground
  • high side current > 14 A
  • ECM Power stage = On
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104- Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING
P20C0 Reductant Heater "B" Control Circuit High SCR Heater Circuit 2 short to battery CURRENT:
  • high side current < 1; > 14 A
OR
  • low side current > 30 A
OR RESISTOR:
  • internal detection via pull up resistor
 CURRENT:
  • ECM power stage = On
RESISTOR:
  • ECM power stage = Off
 3 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Wire Heater. Refer to Reducing Agent Line Heater (Heating Circuit 2) - Z104-, CHECKING
P20E8 Reductant Pressure Too Low SCR Delivery System Functional check
  • Actual pressure SCR delivery system < 300 kPa
  • Reducing Agent Metering control = Active
  • Engine = Running
 55 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Pressure Sensor -G686- Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING
  • Actual pressure SCR delivery system < 400 kPa
 60 s
  • Actual pressure < 450 kPa for 7.1 s
  • Pressure built up for 21.00[-] Attempts > 450 kPa
  • Reducing Agent Metering System Pressure Build up Control = Active
 7.1 s
P20E9 Reductant Pressure Too High SCR Delivery System function check
  • Actual pressure SCR delivery system > 790 kPa
  • SCR system= Active
  • Engine = Running
 0 s
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Pressure Sensor -G686- Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
  • Actual pressure SCR delivery system > 600 kPa
  • Reducing Agent Metering Control = Active
  • Engine = Running
 10 s
  • Pressure @ Dosing end > 50 kPa
  • reductant pressure reduction control = Active
 10 s
P20EE  SCR NOx Catalyst Efficiency Below Threshold SCR Catalyst functional check: conversion efficiency
  • average efficiency < 0.4[-]
 PHASE 1: MONITOR ENTRY CONDITIONS:
  • conventional conversion efficiency check n.a.
  • deviation between target and measured stored NH3 mass n.a. %
  • NOx sensor upstream = Ready
  • NOx sensor downstream = Ready
  • SCR catalyst Temperature 235 - 350 [°C]
  • amount of exhaust gas passed catalyst after engine start = > 10 kg
OR
  • amount of exhaust gas passed catalyst after each restarted diagnostic run > 15 kg
  • used reductant mass > n.a.
  • time after engine start > n.a.
OR
  • time after each restarted diagnostic run > n.a. s
  • NH3 slip n.a.
  • stored NH3 mass < n.a. [g]
  • reductant dosing = Ready
  • SCR adaption = Not Active
  • rate of change SCR catalyst delta temperature < 0.33 - 1.25 [°C/s].
  • rate of change SCR catalyst delta temperature > -1.67 - -0.34 [°C/s].
  • barometric pressure > 70 kPa
  • AAT > -12 [°C]
  • deviation between target and measured stored NH3 mass >-0.15 g
PHASE 2: REDUCTANT OVERDOSING:
  • Overdosing SRC System and evaluation of current efficiency Active
PHASE 3: REDUCTANT DISCHARGING:
  • use up of stored NH3 and evaluation of current efficiency Active
  • reductant dosing = Not Active
PHASE 4: EVALUATION OF PHASE 2 AND PHASE 3:
  • calculation of average efficiency during Phase 2 and 3 Completed
 0 s
  • once / DCY
  • 2 DCY
 -- If a NOx sensor code is also present, diagnose that code first. Check Reducing Agent (AdBlue®) Quality. Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING -- Check the NOx Sensor after the catalyst. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING -- Check the Reducing Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING
P20F4 Reductant Consumption Too Low SCR Catalyst adaptive value limit high
  • SCR adaptive value > 2.50 [-]
   0 s
  • continuous
  • 1 DCY
 -- Check the Reducing Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING -- Check Reducing Agent (AdBlue®) Quality. Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING -- Check for a stuck open reducing agent injector
P20F5 Reductant Consumption Too High SCR Catalyst adaptive value limit low
  • SCR adaptive value < 0.51 [-]
   0 s
  • continuous
  • 1 DCY
 -- Check the Reducing Agent Injector --. Refer to Reducing Agent Injector -N474-, CHECKING -- Check Reducing Agent (AdBlue®) Quality. Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING -- Check for a stuck closed or restricted reducing agent injector
P20FE Reductant Metering Unit Performance SCR Delivery System functional check: reductant delivery
  • difference of average SCR pressure pump speed (between reductant dosing and no dosing) > 50 [rpm] or < 25 [rpm]
  • reductant dosing ready
  • time after last diagnostic run > 1200 s
  • SCR Dosing Valve (target opening time) > n.a.
  • SCR heater circuit 1 not active
  • SCR heater circuit 2 not active
  • SCR heater circuit 1 > n.a.
  • remaining distance until SCR tank empty > 31.08 miles
  • actual pressure SCR delivery system 400 - 600 kPa
  • vehicle speed > 9 mph
  • dosed reductant mass after engine start > 3 g
  • AAT > 0 [°C]
  • SCR system failures not detected
  • SCR catalyst Temperature 195 - 350 [°C]
  • SCR catalyst temperature gradient n.a. K/s
  • exhaust gas mass flow > 50 - 60 kg/h
  • exhaust gas mass flow < 400 kg/h
  • deviation between maximum and measured stored NH3 mass > 0.5 g
  • measured stored NH3 mass < n.a. g
  • deviation between target and measured stored NH3 mass -32 - 0.5 g
  • SCR adaption not active
  • DPF regeneration not active
  • shut off reductant dosing (due to NOx sensor plausibility) > n.a.
  • progress of SCR efficicency check > n.a.%
  • amount of NOx mass passed catalyst after engine start > n.a.[g]
  • SCR conversion efficiency check not active
  • target reductant mass flow < 50 mg/s
 3.9 s
  • multiple
  • 1 DCY
 -- This code will set after a refill event (based on fluid level change) and ECM does not see a change in NOx during dosing. Check fluid in tank for contamination, wrong color (AD Blue is clear in color) or foreign substance used in refill. Also when AD Blue is stale, it will have an ammonia odor. Fresh AD Blue is nearly odorless. Drain tank completely and refill with fresh AD Blue if contamination is present.-- Check the NOx Sensor Module 1 - 2 --. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING -- Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING
P20FF Reductant Control Module Performance SCR control module detects internal hardware defects
  • CAN Controler RAM fault detection 3 times
OR
  • ECU ROM fault detection 3 times
OR
  • ECU RAM fault detection 3 times
OR
  • ECU EEPROM fault detection 3 times
OR
  • ECU watchdog fault detection 3 times
OR
  • ECU AD-converter fault detection 3 times
OR
  • voltage of sensor ground > 0.2 [V]
  • time after ignition on >1000 ms
  • startup of SCR control module
 2000 ms
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P20FF resets:-- Replace the Reducing Agent Metering System Control Module -J880- Refer to the repair information for procedure.
P2101 Throttle Actuator "A" Control Motor Circuit Range/Performance Throttle Actuator electrical error
  • signal current > 8 - 18 [A]
  • ECM power stage on
 0.5 s
  • continuous
  • 2 DCY
 -- Check theThrottle Valve Control Module -J338-. Refer to Throttle Valve Control Module -J338-, CHECKING .
P2102 Throttle Actuator "A" Control Motor Circuit Low Throttle Actuator short to ground
P2103 Throttle Actuator "A" Control Motor Circuit High Throttle Actuator short to battery plus
P2111 Throttle Actuator Control System - Stuck Open Throttle Actuator functional check: stuck open
  • control deviation> 10 [%]
OR
  • control deviation< -10 [%]
  • actual position <= 30 [%]
   4.7 s
  • continuous
  • 2 DCY
 -- Check theThrottle Valve Control Module --. Refer to Throttle Valve Control Module -J338-, CHECKING .
P2112 Throttle Actuator Control System - Stuck Closed Throttle Actuator functional check: stuck close
  • control deviation> 10 [%]
OR
  • control deviation< -10 [%]
  • actual position > 30 [%]
P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low Accelerator Pedal Position Sensor 1 out of range low
  • Signal voltage < 0.65 [V]
   0.1 s
  • continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING .
P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High Accelerator Pedal Position Sensor 1 out of range high
  • Signal voltage > 4.79 [V]
   0.1 s
  • continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING .
P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low Accelerator Pedal Position Sensor 2 out of range low
  • Signal voltage < 0.28 [V]
   0.1 s
  • continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING .
P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High Accelerator Pedal Position Sensor 2 out of range high
  • Signal voltage > 2.43 [V]
   0.1 s
  • continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING .
P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation Accelerator Pedal Position Sensor 1 and 2 rationality check
  • ratio between signal voltage sensor 1 * 0.5 and sensor 2 > |0.14 - 0.26|[V]
  • signal voltage sensor 1 * 0.5> 445 [mV]
  • signal voltage sensor 2> 445 [mV]
  • Limp in mode not active
 0.3 s
  • continuous
  • 2 DCY
 -- Check the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-. Refer to Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185-, CHECKING .
P2146 Fuel Injector Group "A" Supply Voltage Circuit/Open Injection Valves internal check
  • Diagnostic signal in power stage failed
  • injection valve switched on
 4 injections
  • continuous
  • 2 DCY
 -- Check Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .
P2149 Fuel Injector Group "B" Supply Voltage Circuit/Open Injection Valves internal check
  • Diagnostic signal from power stage failed
  • injection valve switched on
 4 injections
  • continuous
  • 2 DCY
 -- Check Fuel Injectors -N30, N31, N32, N33, N83, N84-. Refer to FUEL INJECTORS, CHECKING .
P214E Reductant Pump "A" Current Too High SCR: Control Module temperature of SCR pump powerstage is too high
  • power stage temperature > 140 [°C]
  • for time > 300 ms
  • ECU power stage = on
 2000 ms
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P214E resets:-- Replace the Reducing Agent Metering System Control Module -J880- Refer to the repair information for procedure.
P214F Reductant Heater "A" Current Too High SCR: Control Module temperature of SCR heater powerstage is too high
  • power stage temperature > 140 [°C]
  • ECU power stage = on
 2000 ms
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P214E resets:-- Replace the Reducing Agent Metering System Control Module -J880- Refer to the repair information for procedure.
P2181 Cooling System Performance Engine Cooling System rationality check
  • deviation between target and measured ECT value < - 7.5 [K]
 MONITOR ENTRY CONDITIONS:
  • engine speed > 1100 [rpm]
  • for time 30 [s]
  • engine speed < 3500 [rpm]
  • for time 30 [s]
  • injection quantity -0.005 - 0.05[g/rev]
  • for time 30 [s]
  • ECT @ cylinder head > 66 [°C]
  • ECT @ cylinder block > 66 [°C]
  • ECT @ radiator outlet < 45 [°C]
  • thermostat regulator active
  • target ECT @ cylinder head 70 - 80 [°C]
  • ECT @ cylinder head @ start > - 7[°C]
  • EOT @ start< 110 [°C]
  • time after engine start> 30 - 180 [s]
CONDITIONS AT FAULT DECISION:
  • monitor entry conditions fulfilled for time60 - 105 [s]
 15 s
  • continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING .
P2183 Engine Coolant Temperature Sensor 2 Circuit Range/Performance Engine Coolant Temperature Sensor @ Radiator Outlet cross check
  • number of detected faults >= 6
CROSS CHECKS FOR FAULT DETECTION:
  • ECT @ radiator outlet vs. ECT @ cylinder head > 35 K
  • ECT @ radiator outlet vs. IAT > 35 K
  • ECT @ radiator outlet vs. FTS > 35 K
  • ECT @ radiator outlet vs. AAT > 35 K
  • ECT @ radiator outlet vs. ECT > 35 K @ cylinder block
  • ECT @ radiator outlet vs. EOT > 35 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a.
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C]
OR
  • ECT @ radiator outlet @ start < 35 [°C]
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 60 s
  • once
  • 2 DCY
 -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING .
P2184 Engine Coolant Temperature Sensor 2 Circuit Low Engine Coolant Temperature Sensor @ Radiator Outlet short to ground
  • Signal voltage< 0.22 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING .
P2185 Engine Coolant Temperature Sensor 2 Circuit High Engine Coolant Temperature Sensor On Radiator Outlet short to battery / open circuit
  • Signal voltage > 4.92 [V]
P2195  O2 Sensor Signal Biased/Stuck Lean Oxygen Sensors front rationality check
  • Measured oxygen concentration @ fuel cutoff > 25.6% or < 14.7%
  • EGR valve closed
  • DPF regeneration = not active
  • injection quantity 0 g/rev
  • Air mass per cylinder 0.25 - 3 g/rev
  • Integrated air mass > 100 g
  • Engine speed > 1100 - 6000 [rpm]
 2 s
  • continuous
  • 2 DCY
 -- Check theHeated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
  • measured oxygen concentration compared with calculated oxygen concentration deviation @ part load > 11% or < 32.77%
  • DPF regeneration = not active
  • injection quantity 0.011 - 0.04 g/rev
  • EGR valve closed
  • Air mass > 0.20 - 0.6 g/rev
  • Integrated air mass > 100 g
  • Engine speed > 1100 - 2300 [rpm]
P2196  O2 Sensor Signal Biased/Stuck Rich Oxygen Sensors front rationality check
  • Measured oxygen concentration @ fuel cutoff > 25.6% or < 14.7%
  • EGR valve closed
  • DPF regeneration = not active
  • injection quantity 0 g/rev
  • Air mass per cylinder 0.25 - 3 g/rev
  • Integrated air mass > 100 g
  • Engine speed > 1100 - 6000 [rpm]
 2 s
  • continuous
  • 2 DCY
 -- Check theHeated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P21C7 Reductant Control Module Power Relay/Relays Control Circuit/Open SCR control module detects short circuit to ground of its main relay
  • Supply voltage low during relay activation < 1 [V]
  • time after ignition on > 1000 ms
 2000 ms
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P21C7 resets:-- Replace the Reducing Agent Metering System Control Module -J880- Refer to the repair information for procedure.
P21C9 Reductant Control Module Power Relay/Relays Control Circuit High SCR control module detects short circuit to battery of its main relay
  • Supply voltage high during relay activation > 7 [V]
  • time after ignition on > 1000 ms.
  • startup and shutdown of SCR control module
 2000 ms
  • continuous
  • 2 DCY
 -- Check for any sensor or voltage related codes first and repair as necessary. If P21C7 resets:-- Replace the Reducing Agent Metering System Control Module -J880- Refer to the repair information for procedure.
P21CA Reductant Control Module Supply Voltage Circuit SCR control module detects short circuit to ground of B+ supply or heater supply
  • voltage @ closed main relay < 1 [V]
  • for time >= 300 ms
  • time after ignition on > 1000 ms
 2000 ms
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
P21CC Reductant Control Module Supply Voltage High SCR control module detects short circuit to battery of B+ supply or heater supply
  • voltage @ opened main relay > 7 [V]
  • for time >= 300 ms
  • time after ignition on > 1000 ms
  • startup or shutdown of SCR control module
 2000 ms
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
P2200  NOx Sensor Circuit NOx Sensor front open circuit
  • message from NOx-Sensor failure
  • Dew point exceeded > 2 s
  • EGT upstream catalyst = 100 - 600 [°C]
  • time after engine start > 5 s
 2 s
  • continuous
  • 2 DCY
 -- Check the Nox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor front short to battery plus/ short to ground
NOx Sensor front NOx Sensor feedback check
  • NOx sensor signal ratio of validity < 0.5 [-]
  • NOx control active
OR
  • forced activation after time > 350 s
  • Dewpoint exceeded
  • exhaust temperature 100 - 600 [°C]
  • actual-filtered A/F ratio O2S 0 - 0.20
  • for time > 1 s
 45 s
  • multiple
  • 2 DCY
P2201  NOx Sensor Circuit Range/Performance NOx Sensor Front rationality check low
  • (measured NOx value - calculated NOx value) / calculated NOx value > -0.60
 PHASE 1: MONITOR ENTRY CONDITIONS:
  • NOx sensor heater control = active
  • DPF regeneration = not active
  • Engine speed 1100 - 1900 [rpm]
  • injection quantity 0.0121 - 0.04 g/rev
  • for time > 3 s
  • injection quantity gradient < 0.04 g/rev
  • air mass per cylinder -3.277 - 3.277 g/rev
  • for time > 0 s
  • EGR valve position 100%
  • for time > 4 s
  • barometric pressure 75 - 110 kPa
  • AAT -7 - 50 [°C]
  • EOT 60 - 130 [°C]
  • for time > 5 s
  • EGT downstream DPF > 450 [°C]
  • calculated NOx-value 100 - 32767 ppm
  • for time > 0 s
  • deviation of calculated NOx-value < 50%
  • vehicle speed 204 - 0 mph
  • selected gear >= 4
  • phase 1 fullfilled for time >4 s
PHASE 2: DRIVER REQUEST DYNAMIC CONDITION:
  • deviation of calculated NOx-value > 1.05
  • for time > 10 s
  • deviation of calculated NOx-value < 0.95
  • for time > 10 s
PHASE 3: REPEAT MONITOR ENTRY CONDITIONS:
  • equal conditions to Phase 1
 0 s
  • once / DCY
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor Front rationality check high
  • (measured NOx value - calculated NOx value) / calculated NOx value > 0.60
NOx Sensor front NOx Sensor undershoot detection
  • NOx value < -35 ppm
  • Fuel cutoff = active
  • engine speed 1000 - 3500 [rpm]
  • EGR valve position 0 - 100 %
  • NOx control active > 30.5 s
  • dew point exceeded > 0 s
  • NOx heater release acvtive
  • for time > 0 s
 0.5 s
  • multiple
  • 2 DCY
NOx Sensor front dynamic check
  • time for NOx Sensor signal to decrease from 100% to 40% > 5 s
  • heater control active
  • DPF regeneration not active
  • minimum fuel quantity to activate > 0.04 g/rev
  • range for deviation of fuel quantity < 0.01 g/rev
  • for time > 2 s
  • fuel quantity in fuel cut off < 0.001 g/rev
  • time to reach fuel cut off < 1.5 s
  • engine speed > 1100 [rpm]
 10 s
  • continuous
  • 2 DCY
NOx Sensor front offset plausibility check
  • average NOx Offset value > 50 ppm
  • number of checks 2
  • fuel cut off active
  • integrated air mass after fuel cut off > 250 - 1000 g
  • engine speed 1000 - 3500 [rpm]
  • EGR valve 0 - 100 %
  • NOx sensor control active
  • for time > 30.5 s
  • dew point exceeded > 0 s
  • EGT upstream catalyst 100 - 600 [°C]
  • NOx gradient value during monitoring time > 6 ppm
 2.3 s
  • multiple
  • 2 DCY
NOx Sensor front offset plausibility check
  • Average NOx Offset value < -30 ppm
  • number of checks 2
  • fuel cut off active
  • integrated air mass after fuel cut off > 250 - 1000 g
  • engine speed 1000 - 3500 [rpm]
  • EGR valve 0 - 100%
  • NOx sensor control active
  • for time > 30.5 s
  • dew point exceeded > 0 s
  • EGT upstream catalyst 100 - 600 [°C]
  • NOx gradient value during monitoring time > 6.00 ppm
P2202 NOx Sensor Circuit Low NOx Sensor front out of range low
  • NOx value < -105 ppm
  • for time 2 s
  • Dewpoint exceeded
  • NOx control = active
  • injection quantity >0 mg/rev
  • for time 0 s
  • time after engine start > 5 s
 1 event(s).
  • 2 DCY
 -- Check theNox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P2203 NOx Sensor Circuit High NOx Sensor front out of range high
  • NOx value > 1655 ppm
  • for time 2 s
  • Dewpoint exceeded
  • NOx control = active
  • injection quantity < 327 mg/rev
  • for time 5 s
  • time after engine start > 5 s
 1 event(s).
  • 2 DCY
 -- Check theNox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P2209  NOx Sensor Heater Sense Circuit Range/Performance NOx Sensor Front rationality check
  • NOx control active time since dew point exceeded > 180 s
  • dew point exceeded > 2 s
  • EGT upstream catalyst 100 - 600 [°C]
  • time after engine start > 5 s
  • A/F ratio O2S < 0.00 - 0.20[-]
  • for time > 5 s
 180 s
  • once / DCY
  • 2 DCY
 -- Check theNox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P220A NOx Sensor Front Circuit Supply Voltage NOx Sensor front circuit continuity check
  • difference between battery voltage and sensor supply voltage > 1.5 [V]
  • dew point exceeded > 3 s
  • EGT upstream catalyst 100 - 600 [°C]
  • time after engine start > 5 s
 2 s
  • continuous
  • 2 DCY
 -- Check theNox Sensor -G295-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P220B NOx Sensor Supply Voltage Circuit Bank 1 Sensor 2 NOx Sensor rear circuit continuity check
  • difference between battery voltage and sensor supply voltage > 1.5 [V]
  • dew point exceeded > 3 s
  • EGT upstream catalyst 100 - 600 [°C]
  • time after engine start > 5 s
 2 s
  • continuous
  • 2 DCY
 -- Check the Nox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P2237 O2 Sensor Positive Current Control Circuit/Open Oxygen Sensors front O2S signal check - circuit continuity
  • Measured oxygen concentration < 0.01 [-]
  • modeled O2 concentration > 0.07
  • for time > 5 s
  • O2 heater temperature 720 - 840 [°C]
  • Dewpoint exceeded
  • O2S signal front valid
  • post injection not active
  • DPF Regeneration = not active
 2 s
  • multiple
  • 2 DCY
 -- Check theHeated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P2243 O2 Sensor Reference Voltage Circuit/Open Oxygen Sensors front O2S signal check - circuit continuity
  • internal resistance voltage > 3 [V]
  • O2S signal front < -1.3 [V]
OR
  • O2S signal front > 1.5 [V]
  • Fuel cutoff = not active
  • for time > 0.01 s
  • O2S heater temperature 720 - 840° C
  • Heater control = active for > 10 s
  • for time > 10 s
  • Dewpoint exceeded
 2 s
  • multiple
  • 2 DCY
 -- Check theHeated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P2251 O2 Sensor Negative Current Control Circuit/Open Oxygen Sensors front O2S signal check - circuit continuity
  • internal resistance voltage > 3 [V]
  • O2S signal front -0.2 - 0.2 [V]
  • Fuel cutoff = not active
  • for time > 0.1 s
  • O2S heater temperature 720 - 840° C
  • heater control active
  • for time >10 s
  • dew point exceeded
 2 s
  • multiple
  • 2 DCY
 -- Check theHeated Oxygen Sensor (HO2S) -G39-. Refer to Heated Oxygen Sensor -G39- / Oxygen Sensor Heater -Z19-, CHECKING .
P226C  Turbocharger Boost Control "A" Slow Response Boost Pressure Control functional check: VGT slow response
  • accumulated and factor weighted negative boost control difference between target and measured boost pressure < -6976 J
  • IAT 0 - 60° C
  • ECT at cylinder head 0 - 130° C
  • Engine speed 800 - 3500 [rpm]
  • selected gear >= 1
  • barometric pressure 75 - 120 kPa
  • injection quantity >= 0.015 g/rev
  • target boost pressure > 190 kPa
  • boost pressure control closed loop
  • accumulated gradient of target boost pressure during dynamic check <= 90 kPa
 6 s
  • Multiple
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
P2279 Intake Air System Leak Boost Pressure Hose Leakage functional check by modeled mass air flow
  • ratio of measured and modeled mass air flow = 0.45 - 0.80[-]
  • Engine speed 1700 - 4000 [rpm]
  • barometric pressure > 50[kPa]
  • boost pressure< 200[kPa]
  • fuel quantity> 0.021[g/rev]
  • engine running> 100000[ms]
  • difference between boost pressure and barometric pressure > 8 [kPa]
  • rate of change IAT <= 50[°C/s]
  • ECT @ cylinder head > 0[°C]
 3 s
  • continuous
  • 2 DCY
 -- Check for leaking engine gaskets, oil cap gasket torn/missing, oil dipstick not seated in tube or leak in the intake duct after the Mass Air Flow sensor.
P2294 Fuel Pressure Regulator 2 Control Circuit/Open Fuel Pressure Regulator Valve Open Circuit
  • Signal Voltage < 4.7 [V]
  • ECM Power stage = permanently high
 0.3 s
  • continuous
  • 2 DCY
 -- Check theFuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING .
P2295 Fuel Pressure Regulator 2 Control Circuit Low Fuel Pressure Regulator Valve short to ground
  • Signal Voltage < 2.97 [V]
  • ECM Power stage = permanently high
 50 ms
  • continuous
  • 2 DCY
 -- Check theFuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING .
P2296 Fuel Pressure Regulator 2 Control Circuit High Fuel Pressure Regulator Valve Short to Battery Voltage
  • Signal Current > 3.0 A
  • Power stage = permanently low
 0.3 s
  • continuous
  • 2 DCY
 -- Check theFuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING .
P229E  NOx Sensor Circuit Bank 1 Sensor 2 NOx Sensor rear open circuit
  • message from NOx-Sensor failure
  • dew point exceeded > 2 s
  • EGT downstream DPF 100 - 600 [°C]
  • time after engine start > 5 s
 2 s
  • continuous
  • 2 DCY
 -- Check the Nox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear short to battery plus/ short to ground
NOx Sensor rear NOx Sensor feedback check
  • NOx sensor signal ratio of validity < 0.5 [-]
  • NOx control active
OR
  • forced activation after time > 350 s
  • dew point exceeded
  • EGT downstream DPF 100 - 600 [°C]
  • actual-filtered A/F ratio O2S 0 - 0.2
  • for time > 1 s
 45 s
  • multiple
  • 2 DCY
P229F  NOx Sensor Circuit Range/Performance Bank 1 Sensor 2 NOx Sensor rear signal range check
  • NOx Sensor characteristic line: arithmetic average self diagnosis value > 60 or < 140%
  • time between each diagnostic run >= 10 s
  • rate of change O2 concentration <= 0 1/s
OR
  • forced release after engine off >= 10 s
  • NOx sensor downstream ready
  • EGT downstream DPF = 50 - 300 [°C]
  • engine stop active
  • engine speed 0 - 800 [rpm]
  • modeled NOx value <= 200 ppm
  • NOx sensor heater target temperature reached
  • ECM keep alive time <= 90 s
  • maximum waiting time for diagnosis start <= 30 s
  • time since last DPF regeneration >= 300 s
  • O2 concentration >= n.a. %
  • number of DPF regeneration completed >= n.a.
FOR ARITHMETIC AVERAGE VALUE CALCULATION:
  • number of average values for calculation 5
DIAGNOSIS PROCEDURE:
  • number of diagnosis measurements by default per DCY 3
CONDITIONS FOR STEP CHANGE DETECTION:
  • relative deviation between new measured value and mean value > 25%
  • number of additional checks 3
 180 s
  • multiple
  • 2 DCY
 -- Check the Nox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
Nox Sensor self diagnosis monitoring
  • counted self diagnosis aborts > 30
  • time between each diagnostic run >= 10 s
  • rate of change O2 concentration <= 0 1/s
OR
  • forced release after engine off >= 10 s
  • NOx sensor downstream ready
  • EGT downstream DPF = 50 - 300 [°C]
  • engine stop active
  • engine speed 0 - 800 [rpm]
  • modeled NOx value <= 200 ppm
  • NOx sensor heater target temperature reached
  • ECM keep alive time <= 90 s
  • maximum waiting time for diagnosis start <= 30 s
  • time since last DPF regeneration >= 300 s
  • O2 concentration >= n.a.
  • number of DPF regeneration completed >= n.a.
 180 s
  • multiple
  • 6 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear offset plausibility check
  • average NOx Offset value > 50 ppm
  • number of checks 1
  • fuel cut off active
  • integrated air mass after fuel cut off > 250 - 1000 g
  • engine speed 1000 - 3500 [rpm]
  • EGR valve 0 - 100 %
  • NOx sensor control active
  • for time > 30.5 s
  • dew point exceeded >0 s
  • EGT downstream DPF 100 - 600 [°C]
  • NOx gradient value during monitoring time > 6 ppm
ADDITIONAL TO AVOID NH3-SLIP:
  • modeled SCR temperature 50 - 500 [°C]
  • for time >10 s
  • DPF regeneration n.a.
  • for time > 10
  • DPF regeneration n.a.
  • for time > n.a.
  • minimal temperature gradient of SCR catalyst system n.a. [K/s]
  • for time > n.a. [s]
CASE 1:
  • modeled ammonia load in SCR > n.a. [g]
  • for time > n.a. [s]
CASE 2:
  • difference of modeled ammonia load and modeled ammonia load reference in SCR <= n.a. [g]
  • for time > n.a. [s]
ADDITIONAL FOR MINIMUM NOX VALUE EVALUATION:
  • SCR-Catalyst efficency factor > 30 %
AND DIAGNOSIS FUEL CUT OFF PROPORTION:
  • fuel cut off > 3 s
  • required fuel cut off phases > 3
AND DIAGNOSIS DELTA NOX MASS FLOW PROPORTION:
  • NOx mass flow >0.01 g/s
  • required delta Nox phases > 8
 300 s
  • multiple
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear offset plausibility check
  • average NOx Offset value < -30 ppm
  • number of checks 2
  • fuel cut off active
  • integrated air mass after fuel cut off > 250 - 1000 g
  • engine speed 1000 - 3500 [rpm]
  • EGR valve 0 - 100 %
  • NOx sensor control active
  • for time > 30.5 s
  • dew point exceeded > 0 s
  • EGT downstream DPF 100 - 600 [°C]
  • NOx gradient value during monitoring time > 6 ppm
ADDITIONAL TO AVOID NH3-SLIP:
  • modeled SCR temperature 50 - 500 [°C]
  • for time > 10 s
  • DPF regeneration n.a.
  • for time > n.a.
  • minimal temperature gradient of SCR catalyst system n.a. [K/s]
  • for time n.a. [s]
CASE 1:
  • modeled ammonia load in SCR <= n.a. [g]
  • for time > n.a. [s]
CASE 2
  • difference of modeled ammonia load and modeled ammonia load reference in SCR <= n.a. [g]
  • for time > n.a. [s]
:		 2.3 s
  • multiple
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear rationality check
  • measured oxygen concentration compared with calculated oxygen concentration deviation @ part load > 11%
  • DPF regeneration not active
  • time since last DPF regeneration >= 1000000 ms
  • injection quantity 0.011 - 0.04 g/rev
  • air mass per cylinder 3.277 g/rev
  • integrated air mass > 120 g
  • engine speed 1130 - 2300 [rpm]
  • AAT -7 - 50 [°C]
  • barometric pressure 69 - 3276.7 kPa
  • stable O2 concentration calculated 3%
  • calculated O2 concentration 32.77%
 10 s
  • continuous
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear NOx Sensor undershoot detection
  • NOx value < -35 ppm
  • fuel cut off active
  • engine speed 1000 - 3500 [rpm]
  • EGR valve position 0 -100 %
  • NOx control active > 30.5 s
  • dew point exceeded > 0 s
  • NOx heater release active
  • for time > 0 s
 0.5 s
  • multiple
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
NOx Sensor rear dynamic check
  • time to reach 0% to 59% Oxygen > 4.5 s
  • heater control active
  • DPF regeneration not active
  • minimum fuel quantity to activate > 0.03 g/rev
  • range for deviation of fuel quantity < 0.02 g/rev
  • for time > 2 s
  • fuel quantity in fuel cut off < 0 g/rev
  • time to reach fuel cut off < 1.5 s
  • engine speed > 1100%
  • EGR valve 0 - 100%
  • throttle valve 100%
 10 s
  • continuous
  • 2 DCY
 -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an exhaust leak. Refer to the repair information for Exhaust System procedures and cautions. -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P22A0 NOx Sensor Circuit Low Bank 1 Sensor 2 NOx Sensor rear out of range low
  • NOx value < -105 ppm
  • for time 2 s
  • Dewpoint exceeded
  • NOx control = active
  • injection quantity > 0 mg/rev
  • for time 0 s
  • time after engine start > 5 s
 1 events.
  • 2 DCY
 -- Check the Nox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P22A1 NOx Sensor Circuit High Bank 1 Sensor 2 NOx Sensor rear out of range high
  • NOx value > 1655 ppm
  • for time 2 s
  • Dewpoint exceeded
  • NOx control = active
  • injection quantity < 327 mg/rev
  • for time 5 s
  • time after engine start > 5 s
 1 events.
  • 2 DCY
 -- Check the Nox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P22A7  NOx Sensor Heater Sense Circuit Range/Performance Bank 1 Sensor 2 NOx Sensor rear Rationality check
  • NOx control active time since dew point exceeded > 180 s
  • dew point exceeded > 2 s
  • EGT downstream DPF 100 - 600 [°C]
  • time after engine start > 5 s
  • A/F ratio O2S < 0 - 0.2[-]
  • for time > 5 s
 180 s
  • once / DCY
  • 2 DCY
 -- Check theNox Sensor 2 -G687-. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING .
P240F  EGR Slow Response EGR System functional check: dynamic response behavior of air mass
  • calculated characteristically value: negative gradient of target mass air flow >= 35 [-]
  • Engine speed = 1100 - 3000 [rpm]
  • injection quantity 0.006 - 0.04 g/rev
  • barometric pressure > 74.5 kPa
  • ECT @ cylinder head > 44 [°C]
  • AAT > -7 [°C]
  • time after engine start > n.a.
  • target air mass 0.4 - 0.9 g/rev
AND CHOICE OF:
  • EGR valve position 15 - 97 %
OR
  • target air mass < 0.4 - 0.9 g/rev
OR
  • target air mass gradient < 0.8 or >2 g/s
AND CHOICE OF:
  • EGR valve position n.a.%
OR
  • low pressure EGR valve position n.a.%
OR
  • low pressure exhaust flap position n.a.%
 20 s
  • Multiple
  • 2 DCY
 -- Check all intake ducts and connections for air leaks, including the suction and pressure side of the turbo. Any air leak will distort the calculated airflow numbers and set this fault.-- Check EGR Vacuum Regulator Solenoid Valve -N18-. Refer to EGR Motor -V338-, CHECKING .
EGR System functional check: dynamic response behavior of air mass
  • calculated characteristcal value: positive gradient of target mass air flow > = 35 [-]
  • Engine speed = 1100 - 3000 [rpm]
  • injection quantity 0.006 - 0.04 g/rev
  • barometric pressure > 74.5 kPa
  • ECT @ cylinder head > 44 [°C]
  • AAT > -7 [°C]
  • time after engine start > n.a. s
  • target air mass 0.4 - 0.9 g/rev
AND CHOICE OF:
  • EGR valve position 15 - 97%
OR
  • target air mass < 0.4 - 0.9 g/rev
OR
  • target air mass gradient < 0.8 or > 2 g/s
AND CHOICE OF:
  • EGR valve position n.a.%
OR
  • low pressure EGR valve position n.a.%
OR
  • low pressure exhaust flap position n.a.%
P2425 Exhaust Gas Recirculation Cooling Valve Control Circuit/Open EGR Cooler Bypass Valve open circuit
  • signal voltage < 4.7 [V]
  • ECM power stage permanently high
 0.5 s
  • continuous
  • 2 DCY
 -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch Over Valve -N345-, CHECKING .
P2426 Exhaust Gas Recirculation Cooling Valve Control Circuit Low EGR Cooler Bypass Valve short to ground
  • signal voltage < 2.97 [V]
  • ECM power stage permanently high
 0.5 s
  • continuous
  • 2 DCY
 -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch Over Valve -N345-, CHECKING .
P2427 Exhaust Gas Recirculation Cooling Valve Control Circuit High EGR Cooler Bypass Valve short to battery
  • signal current > 2.2 A
  • ECM power stage Permanently Low
 0.5 s
  • continuous
  • 2 DCY
 -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch Over Valve -N345-, CHECKING .
P242A Exhaust Gas Temperature Sensor Circuit EGT Sensor downstream Catalyst short to battery / open circuit
  • Signal voltage > 2.61 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 3 -G495-. Refer to Exhaust Gas Temperature Sensor 3 -G495-, CHECKING .
P242B Exhaust Gas Temperature Sensor Circuit Range/Performance EGT Sensor downstream Catalyst
  • Measured sensor temperature - mean value of modeled temperature <-100 [°K]
  • DPF regeneration not active
  • time after engine start > 300 s
  • EOT -50 - 1050 [°C]
  • simulated exhaust gas sensor temperature -50 - 1050 [°C]
  • PM sensor n.a.
 500 s
  • multiple
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 3 -G495-. Refer to Exhaust Gas Temperature Sensor 3 -G495-, CHECKING .
EGT Sensor downstream Catalyst cross check
  • number of detected faults >= 4
CROSS CHECKS FOR FAULT DETECTION:
  • EGT Sensor downstream Catalyst vs. EGT upstream Catalyst >40 K
  • EGT Sensor downstream Catalyst vs. EGT upstream Turbocharger >40 K
  • EGT Sensor downstream Catalyst vs. EGT downstream DPF >40 K
  • EGT Sensor downstream Catalyst vs. TEGR >40 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start: CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C].
OR
  • ECT @ radiator outlet @ start < 35 [°C].
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once / DCY
  • 2 DCY
P242C Exhaust Gas Temperature Sensor Circuit Low EGT Sensor downstream Catalyst short to ground
  • Signal voltage < 0.68 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 3 -G495-. Refer to Exhaust Gas Temperature Sensor 3 -G495-, CHECKING .
P244C  Exhaust Temperature Too Low For Particulate Filter Regeneration Diesel Particulate Filter exhaust gas temperature sensor -feedback check
  • modeled EGT downstream Catalyst < 350 [°C]
  • EGT sensor response time > 260 s
  • engine speed > 1000 - 3500 [rpm]
  • fuel mass > 0.015 - 0.125 g/rev
  • regeneration mode with post injection active
  • gradient of accelerator pedal position < 9 %/s
 0 s
  • multiple
  • 1 DCY
 -- If no Exhaust Temperature Sensor codes are set, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool with regeneration capability.
P2452 Diesel Particulate Filter Pressure Sensor "A" Circuit DPF Pressure Sensor short to battery / open circuit
  • Sensor voltage > 4.9 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING .
P2453 Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance DPF Pressure Sensor rationality check
  • pressure difference between absolute value and filtered value -3 - 3 kPa
  • timer after engine start > 0 s
OR
  • ECT @ engine off > -50 [°C]
  • time after engine stop > 60 s
  • AAT > -7 [°C]
 0.5 s
  • once / DCY
  • 2 DCY
 -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING .
P2454 Diesel Particulate Filter Pressure Sensor "A" Circuit Low DPF Pressure Sensor short to ground
  • Sensor voltage < 0.2 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Pressure Sensor --. Refer to Differential Pressure Sensor -G505-, CHECKING .
P2458  Diesel Particulate Filter Regeneration Duration Diesel Particulate Filter functional check: regeneration
  • Accumulated timer of regeneration duration > 93.35 min.
  • engine speed > 1400 [rpm]
  • injection quantity > 0.015 g/rev
  • gradient of acceleration pedal position 6 - 8 %/s.
  • DPF regeneration = active
 0 s
  • multiple
  • 2 DCY
 -- Check for DPF increased particle mass. Refer to DIESEL PARTICULATE FILTER (DPF) INCREASED PARTICLE MASS, CHECKING .
P2459  Particulate Filter Regeneration Frequency Bank 1 Diesel Particulate Filter functional check: regeneration frequency
  • difference soot mass- upper threshold model > 0 g
  • last regeneration no fault
  • actual regeneration active
 0 s
  • multiple
  • 2 DCY
 -- DPF filter may have too much restriction due to age and buildup of contaminants. Perform a Service Regeneration. If the filter still shows a restriction, replacement will be required. If the filter was previously replaced and is unable to regenerate:-- Check for increased exhaust particle mass. Refer to DIESEL PARTICULATE FILTER (DPF) INCREASED PARTICLE MASS, CHECKING .
P245B  EGR Cooler Bypass Control Circuit Range/Performance Bank 1 EGR Cooler System exhaust gas temperature monitoring
  • positive difference between measured and target temperature too high = 10.0 - 70.0 [K]
 MONITOR ENTRY CONDITIONS:
  • Engine speed = 900 - 3000 [rpm]
  • injection quantity = 0.002 - 0.05 [g/rev]
  • EGR mass flow= 20 - 110 [kg/h]
  • calculated engine temperature = 55 - 98 [°C]
  • EGR valve =0 - 97 [%]
  • barometric pressure > = 75[kPa]
  • AAT = -7 - 60[°C]
  • engine = running
  • EGR cooler bypass regulation active
  • timer after engine start> 436 s
  • modelled EGT upstream tubocharger = 240 - 465 [°C]
DEBOUNCE TIMER:
  • Accumulated debounce time of monitor entry conditions > = 20 s
DEBOUNCE TIMER CONDITIONS:
  • Start of Debounce Timer: Monitor Entry Conditions fullfilled for time>= 10 s
  • Stop of Debounce Timer: Monitor Entry Conditions not fullfilled for time > = 1.5 s
  • Minimum duration of each start/stop cycle required for debounce time accumulation>= 10 s
 0 s
  • once / DCY
  • 2 DCY
 -- Check theEGR Cooler Switch Over Valve --. Refer to EGR Cooler Switch Over Valve -N345-, CHECKING .
  • negative difference between measured and target temperature too low = -10 [K]
  • Engine speed = 900 - 3000 [rpm]
  • injection quantity = 0.002 - 0.05 [g/rev]
  • EGR mass flow= 20 - 110 [kg/h]
  • calculated engine temperature = 55 - 98 [°C]
  • EGR valve =0 - 97 [%]
P2463 Diesel Particulate Filter Restriction - Soot Accumulation Diesel Particulate Filter functional check
  • calculated DPF loading > 38 g
  • soot mass exceeds maximum value > 42 g
   3 s
  • continuous
  • 2 DCY
 -- Service Bay Regeneration must be performed using a VAS 5052 (available for rental) or equivalent scan tool
P246E Exhaust Gas Temperature Sensor Circuit EGT Sensor downstream DPF short to battery / open circuit
  • Signal voltage > 2.61 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 4 -G648-. Refer to Exhaust Gas Temperature Sensor 4 -G648-, CHECKING .
P246F Exhaust Gas Temperature Sensor Circuit Range/Performance EGT Sensor downstream DPF plausibility check
  • measured sensor temperature - mean value of modeled temperature <-100 [°K]
  • DPF regeneration not active
  • time after engine start > 300 s
  • EOT -50 - 1050 [°C]
  • simulated exhaust gas sensor temperature -50 - 1050 [°C]
  • PM sensor n.a.
 500 s
  • multiple
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 4 -G648-. Refer to Exhaust Gas Temperature Sensor 4 -G648-, CHECKING .
EGT Sensor downstream DPF cross check
  • number of detected faults >= 4
CROSS CHECKS FOR FAULT DETECTION:
  • EGT Sensor downstream DPF vs. EGT upstream Catalystt > 40 K
  • EGT Sensor downstream DPF vs. EGT downstream Catalystr > 40 K
  • EGT Sensor downstream DPF vs. EGT upstream Turbocharger > 40 K
  • EGT Sensor downstream DPF vs. TEGR > 40 K
 PHASE 1 (CONDITION FOR FAULT DETECTION):
  • engine off time > 25200 s
  • engine speed > 0 [rpm]
  • for time < 0.8 s
PHASE 2 (EVALUATION FAULT RESULT): Blockheater @ start: CASE 1:
  • ECT @ cylinder head @ start n.a.
  • ECT @ radiator outlet @ start n.a
CASE 2:
  • ECT @ cylinder head @ start < 35 [°C].
OR
  • ECT @ radiator outlet @ start < 35 [°C].
BLOCKHEATER AFTER START: Start of measurement window:
  • engine running
Conditions for measurement window:
  • max ECT @ cylinder head - ECT @ cylinder head @ start < 90 K
  • ECT @ radiator outlet @ start - min ECT @ radiator outlet < 5 K
  • ECT @ cylinder head @ start - min ECT @ cylinder head < 5 K
End of measurement window:
  • time after engine start < 60 s
SOLAR RADIATION:
  • vehicle speed > 25 mph
  • for time > 20 s
  • AAT @ start - AAT @ conditon < 5 K
  • IAT @ start - IAT @ condition < 5 K
IF INDEPENDENT CAR HEATER INTEGRATED:
  • time after engine start > 5 s
  • Independent Car Heater not active
 0.6 s
  • once / DCY
  • 2 DCY
P2470 Exhaust Gas Temperature Sensor Circuit Low EGT Sensor downstream DPF short to ground
  • Signal voltage < 0.68 [V]
   0.5 s
  • continuous
  • 2 DCY
 -- Check theExhaust Gas Temperature Sensor 4 -G648-. Refer to Exhaust Gas Temperature Sensor 4 -G648-, CHECKING .
P247A  Exhaust Gas Temperature Out of Range Diesel Particulate Filter functional check: active injection
  • difference between target and measured exhaust gas temperature < -100 K
  • Engine speed > 700 - 3500 [rpm]
  • injection quantity > 0 - 0.125 g/rev
  • Regeneration mode with post injection active
  • Temperature controller regulation low active
  • modeled EGT downstream Catalyst > 350 [°C]
  • rate of change modeled EGT downstream Catalyst n.a.
  • gradient of accelerator pedal position < 7 - 9 %/s.
 50 s
  • multiple
  • DCY
 -- Check theExhaust Gas Temperature Sensor --. Refer to Exhaust Gas Temperature Sensor 3 -G495-, CHECKING .
  • difference between target and measured exhaust gas temperature > 180 K
 120 s
P24AE  Particulate Matter Sensor Circuit PM Sensor short to battery
  • signal voltage positive connection (IDE) > 4.7 [V]
  • supply voltage =not active
  
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
PM Sensor short to ground
  • signal voltage positive connection (IDE) < 0.3 [V]
  • supply voltage =active
PM Sensor functional check
  • current (IDE) @ measurement 1 < 2 μA
  • difference between current (IDE) measurement 1 and 2 < 0.15 μA
  • Measurement 1 PM Sensor Temperature 768 [°C]
  • Measurement 2 PM Sensor Temperature 630 [°C]
P24AF  Particulate Matter Sensor Circuit Range/Performance PM Sensor functional check: protection tube plugged / manipulated, sensor removed
  • accumulated change in heater voltage < = 0.40 [V]
 MONITOR ENTRY CONDITIONS:
  • exhaust gas acceleration 0.44 - 3.4 m/s2
  • for time > 0.2 s
  • measured temperature near PM Sensor mount point n.a.
  • engine off time > n.a. [s]
  • modeled EGT downstream SCR Catalyst -40 - 138 [°C]
  • PM Sensor meander temperature @ start n.a. [°C]
  • PM Sensor heat quantity < n.a. [kJ]
  • exhaust gas speed < 46.6 m/s
  • for time > 3.6 [s]
  • engine n.a.
  • for time > n.a. [s]
CONDITIONS AT FAULT DECISION:
  • accumulated change in exhaust velocity >= 27.18 [m/s]
 0 s
  • once / DCY
  • 2 DCY
 -- Check theParticulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING -- Inspected the PM Sensor protection tube for plugged / manipulated, sensor removed.
P24B0  Particulate Matter Sensor Circuit Low PM Sensor rationality check: bypass current monitor
  • signal current (IDE) > 5 μA
  • sensor regeneration active
  • supply voltage (IDE) > 41 or < 50 [V]
  • PM sensor temperature > 200 or < 450 [°C]
 1.5 s
  • multiple
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
P24B1 Particulate Matter Sensor Circuit High PM Sensor short to battery
  • signal voltage negative connection (IDE) > 4.1 [V]
  • supply voltage = not active
  • sensor regeneration = active
 2 s
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
PM Sensor short to ground
  • signal voltage negative connection (IDE) = 0 [V]
  • supply voltage =active
  • sensor regeneration = active
  
P24B3  Particulate Matter Sensor Heater Control Circuit/Open PM Sensor Heater functional check
  • Heater Coil resistance < 1.06 -2.31 Ω
OR
  • Heater Coil resistance < 2.94 - 5.13 Ω
  • PM sensor temperature -30 - 300 [°C]
 100 ms
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
P24B5 Particulate Matter Sensor Heater Control Circuit Low PM Sensor Heater Short to ground
  • Heating Current < 1 [A]
or
  • Heating Current > 15 A
  • Heater module = On
  • Supply Voltage 9.0 - 17.2 [V]
 2 s
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
P24B6 Particulate Matter Sensor Heater Control Circuit High PM Sensor Heater Short to Battery
  • Heating Current >= 0.2 A
  • Heater module = Off
  • Supply Voltage 9.0 - 17.2 [V]
 2 s
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
P24C6 Particulate Matter Sensor Temperature Circuit PM Sensor signal range check low
  • short to ground > 0.3 [V]
  • time after ignition on > 1.2 s
 2 s
  • continuous
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
PM Sensor signal range check high
  • short to battery / open circuit > 3 [V]
P24C7 Particulate Matter Sensor Temperature Circuit Range/performance PM Sensor cross check PM TEMPERATURE SENSOR VS. MEAN VALUE CALCULATED FROM:
  • EGT upstream Catalyst @ start > 40 K
  • EGT downstream Catalyst @ start
  • EGT downstream DPF @ start
  • engine off time > 25200 s
 0 s
  • once / DCY
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
PM Sensor plausibility check
  • measured sensor temperature - mean value of modeled temperature <-100 K
  • DPF regeneration = Not Active
  • time after engine start > 300 s
  • EOT -50 - 1050 [°C]
  • simulated exhaust gas sensor temperature -50 - 1050 [°C]
  • PM sensor = Ready
 500 s
  • Mulitple
  • 2 DCY
P24D0 Particulate Matter Sensor Supply Voltage Circuit Low PM Sensor signal range check low DIFFERENCE BETWEEN MEASURED PM SENSOR SUPPLY WIRE VOLTAGE AND BATTERY VOLTAGE (ECM):
  • value> 1.90[V]
OR
  • value > 2.60[V]
OR
  • value > 3.00[V]
  • pulse width modulated ratio for heater control > 35 [%]
  • PM sensor (ECU) = ready
 1 s
  • Multiple
  • 2 DCY
 -- Check the Particulate Sensor -G784- Refer to Particulate Sensor -G784-, CHECKING .
PM Sensor signal range check high DIFFERENCE BETWEEN MEASURED BATTERY VOLTAGE (ECM) AND PM SENSOR SUPPLY WIRE VOLTAGE:
  • value > 3.00[V]
OR
  • value > 2.10[V]
OR
  • value > 1.10[V]
  • pulse width modulated ratio for heater control > 35 [%]
  • PM sensor (ECU) = ready
PM Sensor signal range check low DIFFERENCE BETWEEN MEASURED PM SENSOR VOLTAGE AND BATTERY VOLTAGE (ECM):
  • value> 1.90[V]
OR
  • value > 2.60[V]
OR
  • value > 3.00[V]
  • CAN communication no fault = detected
  • PM sensor (ECU) =ready
 1.5 s
PM Sensor signal range check high DIFFERENCE BETWEEN MEASURED BATTERY VOLTAGE (ECM) AND PM SENSOR VOLTAGE:
  • value > 3.00[V]
OR
  • value > 2.10[V]
OR
  • value> 1.10[V]
  • CAN communication no fault detected
  • PM sensor (ECU) =ready
P2564 Turbocharger Boost Control Position Sensor "A" Circuit Low Boost Pressure Position Sensor out of range low
  • position sensor signal < 0.15 [V]
   480 ms.
  • continuous
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
P2565 Turbocharger Boost Control Position Sensor "A" Circuit High Boost Pressure Position Sensor out of range high
  • position sensor signal > 4.85 [V]
   480 ms.
  • continuous
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
P268A Fuel Injector Calibration Not Learned/Programmed Zero Fuel Calibration adaptive value limit high
  • deviation to target rail pressure > 1500 - 2000 kPa
  • accumulated time > 40 s
 MONITOR ENTRY CONDITIONS:
  • engine speed 970 - 2080 [rpm]
  • IAT > -7 [°C]
  • fuel temperature 0 - 80 [°C]
  • ECT @ cylinder head > 65 [°C]
  • boost pressure >= 92 kPa
  • accelerator pedal position 0%
  • time after fuel cut off >= 0 ms
  • clutch closed
  • selected gear >= 3 [-]
  • vehicle speed > 0 mph
  • fuel cut off active
  • DPF regeneration not active
  • EGT upstream turbocharger > 230 - 1000 [°C]
  • barometric pressure > 75.00 kPa
CONDITION AT FAULT DECISION:
  • hot combustion chamber for time < 0 - 9 s
 0 s
  • multiple
  • 2 DCY
 -- The ECM will need to be programmed using a VAS 5052 (available for rental) or equivalent scan tool, with the calibration number stamped on the injectors (or change the individual calibration number for an injector that was replaced during diagnosis).
P3348 Boost Pressure Actuator electrical error
  • signal current > 8 - 18 A
  • ECM Power stage = On
 0.5 s
  • continuous
  • 2 DCY
 -- Check the Turbocharger Control Module 1 -J724-. Refer to Turbocharger Control Module 1 -J724-, CHECKING .
U0001 High Speed CAN Communication Bus CAN: Powertrain-CAN reading back sent message
  • CAN message no feedback
  • time after ignition on 0.5 [s]
 0.25 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0002 High Speed CAN Communication Bus Performance CAN: Powertrain-CAN CAN communication check
  • Global time out. receiving no messages.
  • time after ignition on 0.5 s
 0.45 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0028 Vehicle Communication Bus A (only for vehicle with hybrid control or sensor with CAN connection - NOx) reading back sent message
  • CAN message no feedback
  • time after ignition on 0.5 [s]
 0.25 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0029 Vehicle Communication Bus A Performance (only for vehicle with hybrid control or sensor with CAN connection - NOx) CAN communication check
  • Global time out. receiving no messages.
  • Time after ignition On 0.5 s
 0.45 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0037 Vehicle Communication Bus B (only for vehicle with master/slave ECM) CAN: Master-/Slave-CAN reading back sent message
  • CAN message no feedback
  • time after ignition on 0.5 [s]
 0.25 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0038 Vehicle Communication Bus B Performance (only for vehicle with master/slave ECM) CAN: Master-/Slave-CAN CAN communication check
  • global time out receiving no message
  • time after ignition on 0.5 [s]
 0.45 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U0101 Lost Communication with TCM CAN: Transmission Control Module (TCM) CAN communication with TCM
  • received CAN message no message
  • time after ignition on 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .-- If the TCM CAN Bus test passes, check TCM communication with a scan tool. If no TCM communication with scan tool and all other modules communicate, check TCM power and grounds. If OK, replace TCM Module.
U0106 Lost Communication With Glow Plug Control Module LIN: Glow Plug Control Module communication check
  • LIN message no message
  • time after ignition on > 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
U010E Lost Communication With Reductant Control Module SCR control module detects faults concerning received CAN messages
  • received CAN message No messages received.
OR
  • received data implausible message
  • Time after ignition On > 1000 ms.
  • startup of SCR control module ]
 1000 ms.
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
CAN: SCR Control Module CAN communication with SCR control module
  • received CAN message no message
  • time after ignition on 500 [ms]
 5 s
U0121 Lost Communication With Anti-Lock Brake System (ABS) Control Module CAN: Brake System Control Module (BSCM) CAN communication with BSCM
  • received CAN message no message
  • time after ignition on 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .-- If the ABS CAN Bus test passes, check ABS communication with a scan tool. If no ABS communication with scan tool and all other modules communicate, check ABS power and grounds. If OK, replace ABS Module.
U0140 Lost Communication With Body Control Module CAN: Body Control Module (BCM) CAN communication with Body Control Module
  • time outno message
  • time after ignition on 500 [ms]
 2 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .-- If the BCM CAN Bus test passes, check BCM communication with a scan tool. If no BCM communication with scan tool and all other modules communicate, check BCM power and grounds. If OK, replace BCM Module.
U0146 Lost Communication With Gateway "A" CAN: Gateway CAN communication with Gateway
  • received CAN message no message
  • time after ignition on 500 [ms]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .-- If only 1 module has set this code, the gateway is operational and the fault will be with the module that set the code. Check module power and grounds. If OK, replace the module that does not communicate.
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module CAN: Instrument Cluster CAN communication with Instrument Cluster Module
  • received CAN message no massages
  • time after ignition on 0.5 [s]
 2 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .-- If the IPC CAN Bus test passes, check IPC communication with a scan tool. If no IPC communication with scan tool and all other modules communicate, check IPC power and grounds. If OK, replace IPC Module.
U02A3 Lost Communication With PM Sensor CAN : PM Sensor CAN communication with PM Sensor
  • received CAN message no message [-]
  • time after ignition on 0.5 [s]
 1 s
  • continuous
  • 2 DCY
 -- received CAN message
U0302 Software Incompatibility With Transmission Control Module CAN: Transmission Control Module (TCM) CAN communication with TCM
  • received AT vehicle data TCM signal
  • time after ignition on 0.5 [s]
 5 s
  • continuous
  • 2 DCY
 -- Check for correct software in ECM and TCM. If software is incorrect, reflash module with correct software.
U0307 Software Incompatibility With Glow Plug Control Module Glow Plug Control Module LIN communication with Glow Plug Control Module
  • software check via LIN message incorrect
  • time after ignition on > 0.5 [s]
 0.05 s
  • continuous
  • 2 DCY
 -- Check part number of Glow Control Unit. Application is incorrect. Replace with correct unit.
U0402 Invalid Data Received From TCM CAN: Transmission Control Module (TCM) CAN communication with TCM
  • received data implausible message
  • time after ignition on 0.5 [s]
 0.3 s
  • continuous
  • 2 DCY
 -- May have VIN error or incorrect software. Check VIN and software number for correct data.
U0407 Lost Communication With Throttle Actuator Control Module LIN: Glow Plug Control Module communication check
  • LIN message implausible message.
  • time after ignition on > 0.5 [s]
 1 s
  • continuous
  • 2 DCY
 -- Check Automatic Glow Time Control Module -J179-. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUG CHECKING .
U040F Invalid Data Received From Reductant Control Module SCR: Control Module SCR control module detects too high supply voltage (short time fault)
  • dataset is not adequate for hardware version or download of dataset was aborted
  • time after ignition on > 1000 [ms]
  • startup of SCR control module
 2000 ms.
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
SCR: Control Module control module detects implausible dataset
  • dataset of SCR control module does not belong to vehicle type
CAN: SCR Control Module CAN communication with SCR control module
  • received data implausible message
  • time after ignition on 500 [ms]
 5 s
U0415 Invalid Data Received From Anti-Lock Brake System (ABS) Control Module Vehicle Speed Sensor out of range high
  • vehicle speed > 202 [mph]
   2 s
  • multiple
  • 2 DCY
 -- Refer to the repair information for ABS diagnosis.
CAN: Vehicle Speed Sensor CAN communication with Vehicle Speed Sensor
  • speed sensor signal: initialisation error 407.296 [mph]
  • time after ignition on 500 [ms]
 1.98 s
  • continuous
  • 2 DCY
  • speed sensor signal: low voltage error 407.290 [mph]
  • speed sensor signal: sensor error 407.303 [mph]
 0.48 s
CAN: Brake System Control Module (BSCM) CAN communication with BSCM
  • received data implausible message
  • time after ignition on 0.5 [s]
 0.4 s
U0423 Invalid Data Received From Instrument Panel Cluster Control Module CAN: Ambient Air Temperature Sensor communication with Instrument Cluster Module
  • ambient temperature value (initialization) FEh [-]
  • communication time after ignition on > 2 [s]
  • electrical check ambient temperature sensor no fault
 20 s
  • continuous
  • 2 DCY
 -- May have VIN error. Check VIN in each module for correct data
CAN: Instrument Cluster CAN communication with Instrument Cluster Module
  • received data implausible message
  • time after ignition on 0.5 [s]
 3 s
U0447 Invalid Data Received From Gateway "A" CAN: Gateway CAN communication with Gateway
  • received data implausible message
  • time after ignition on 500 [ms]
 0.3 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U04A4 Invalid Data Received From PM Sensor PM Sensor signal range check
  • signal sensitivity factor 0.75 - 1.25
OR
  • invalid sensitivity signal >= 2 s
    
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
PM Sensor communication check
  • communication PM sensor control unit failed > 600 ms
  • time after ignition on > 1.2 s
 1.4 s
PM Sensor CAN communication with PM Sensor
  • received data mplausible message
  • time after ignition on 0.5 s
 0.3 s
U1006 CAN: NOX-Sensor CAN communication with NOX-Sensor 1
  • received CAN message no message
  • time after ignition on 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the NOx Sensor. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING
U1024 CAN: Ambient Air Temperature Sensor communication with Instument Cluster Module
  • ambient temperature value (initialization) FDh [-]
  • communication time after ignition on > 2.0 [s]
 2 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U1026 4WD AT control module communication - no signal CAN: Torque Converter Clutch CAN communication with Torque Converter Clutch
  • Clutch signal error message
   0.2 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U102A (only for vehicle with master/slave ECM) CAN: Master-/Slave-CAN reading back sent message
  • CAN message no feedback
  • time after ignition on 0.5 [s]
 0.25 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U102B (only for vehicle with master/slave ECM) CAN: Master-/Slave-CAN CAN communication check
  • global time out receiving no message
  • time after ignition on 0.5 [s]
 0.45 s
  • continuous
  • 2 DCY
 -- Check the CAN Bus. Refer to CAN BUS TERMINAL RESISTANCE, CHECKING .
U1034 CAN: NOX-Sensor CAN communication with NOX-Sensor 1
  • received data implausible message
  • time after ignition on 0.5 [s]
 0.06 s
  • continuous
  • 2 DCY
 -- Check the NOx Sensor. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING
U10C1 CAN: NOX-Sensor CAN communication with NOX-Sensor 2
  • received data implausible message
  • time after ignition on 0.5 [s]
 0.06 s
  • continuous
  • 2 DCY
 -- Check the NOx Sensor. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING
U10C2 CAN: NOX-Sensor CAN communication with NOX-Sensor 2
  • received CAN message no message
  • time after ignition on 0.5 [s]
 0.5 s
  • continuous
  • 2 DCY
 -- Check the NOx Sensor. Refer to Nox Sensor Control Module -J583- / Nox Sensor Control Module 2 -J881-, CHECKING
U1103 ECM: Production Mode vehicle in production mode
  • Production mode active
 FOR ACTIVATION:
  • during ECM keep alive-time after ignition off
  • vehicle speed < 3 [mph]
  • engine speed < = 0 [rpm]
  • max trip mileage since initial vehicle start-up< 62.15 miles
 0 s
  • 1 DCY
  
U140C Reductant Control Module Supply Voltage Too Low SCR: Control Module control module detects too low supply voltage
  • Supply voltage < 8.5 [V]
  • for time >= 90 s
  • time after ignition on 1000 ms
 2000 ms.
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
U140D SCR: Control Module SCR control module detects too high supply voltage
  • Supply voltage > 16.5 [V]
  • for time >= 90 s
  • Time after ignition on > 1000 ms
 2000 ms
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
U140E Reducing Agent Control Module Function restriction due to insufficient voltage SCR: Control Module SCR control module detects too low supply voltage (short time fault)
  • Supply voltage < 9 [V]
  • for time >= 3 s
  • time after ignition on > 1000 ms
 > 2000 ms.
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
U140F SCR: Control Module SCR control module detects too high supply voltage (short time fault)
  • Supply voltage > 16 [V]
  • for time >= 3 s
  • time after ignition on > 1000 ms
 2000 ms.
  • continuous
  • 2 DCY
 -- Check the Reducing Agent Metering System Control Module -J880- Refer to Reducing Agent Metering System Control Module -J880-, CHECKING
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