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Diagnostic Trouble Code Chart

HINT:

Parameters listed in the chart may be different than your readings depending on the type of instrument and other factors.

If any DTCs are displayed during a check mode DTC check, check the circuit for the DTCs listed in the table below.

SFI SYSTEM: 

SFI SYSTEM

DTC Code Detection Item Trouble Area MIL Memory
P0010  Camshaft Position "A" Actuator Circuit (Bank 1)
  1. Open or short in Oil Control Valve (OCV) circuit
  2. OCV
  3. ECM
 Comes on DTC stored
P0011  Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1)
  1. Valve timing
  2. OCV
  3. OCV filter
  4. Camshaft timing gear assembly
  5. ECM
 Comes on DTC stored
P0012  Camshaft Position "A" - Timing Over-Retarded (Bank 1) Same as DTC POOH Comes on DTC stored
P0016  Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
  1. Valve timing
  2. OCV
  3. OCV filter
  4. Camshaft timing gear assembly
  5. ECM
 Comes on DTC stored
P0031  Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor D
  1. Open in Air-Fuel Ratio (A/F) sensor heater circuit
  2. A/F sensor heater (sensor 1)
  3. Engine room J/B (EFI relay)
  4. ECM
 Comes on DTC stored
P0032  Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
  1. Short in A/F sensor heater circuit
  2. A/F sensor heater (sensor 1)
  3. Engine room J/B (EFI relay)
  4. ECM
 Comes on DTC stored
P0037  Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2)
  1. Open in Heated Oxygen (HO2) sensor heater circuit
  2. HO2 sensor heater (sensor 2)
  3. Engine room J/B (EFI relay)
  4. ECM
 Comes on DTC stored
P0038  Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2)
  1. Short in HO2 sensor heater circuit
  2. HO2 sensor heater (sensor 2)
  3. Engine room J/B (EFI relay)
  4. ECM
 Comes on DTC stored
P0100  Mass or Volume Air Flow Circuit
  1. Open or short in Mass Air Flow (MAF) meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC stored
P0101  Mass Air Flow Circuit Range / Performance Problem
  1. MAF meter
  2. Air induction system
  3. PCV hose connections
 Comes on DTC stored
P0102  Mass or Volume Air Flow Circuit Low Input
  1. Open or short in MAF meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC stored
P0103  Mass or Volume Air Flow Circuit High Input
  1. Open or short in MAF meter circuit
  2. MAF meter
  3. ECM
 Comes on DTC stored
P0110  Intake Air Temperature Circuit Malfunction
  1. Open or short in Intake Air Temperature (IAT) sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0111  Intake Air Temperature Sensor Gradient Too High Mass air flow meter assembly Comes on DTC stored
P0112  Intake Air Temperature Circuit Low Input
  1. Short in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0113  Intake Air Temperature Circuit High Input
  1. Open in IAT sensor circuit
  2. IAT sensor (built into MAF meter)
  3. ECM
 Comes on DTC stored
P0115  Engine Coolant Temperature Circuit Malfunction
  1. Open or short in Engine Coolant Temperature (ECT) sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0116  Engine Coolant Temperature Circuit Range / Performance Problem
  1. Thermostat
  2. ECT sensor
 Comes on DTC stored
P0117  Engine Coolant Temperature Circuit Low Input
  1. Short in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0118  Engine Coolant Temperature Circuit High Input
  1. Open in ECT sensor circuit
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P011B  Engine Coolant Temperature / Intake Air Temperature Correlation
  1. IAT sensor
  2. ECT sensor
  3. ECM
 Comes on DTC stored
P0120  Throttle / Pedal Position Sensor / Switch "A" Circuit Malfunction
  1. Throttle Position (TP) sensor (built into throttle body)
  2. ECM
 Comes on DTC stored
P0121  Throttle / Pedal Position Sensor / Switch "A" Circuit Range / Performance Problem TP sensor (built into throttle body) Comes on DTC stored
P0122  Throttle / Pedal Position Sensor / Switch "A" Circuit Low Input
  1. TP sensor (built into throttle body)
  2. Short in VTA1 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC stored
P0123  Throttle / Pedal Position Sensor / Switch "A" Circuit High Input
  1. TP sensor (built into throttle body)
  2. Open in VTA1 circuit
  3. Open in E2 circuit
  4. Short between VC and VTA1 circuits
  5. ECM
 Comes on DTC stored
P0125  Insufficient Coolant Temperature for Closed Loop Fuel Control
  1. ECT sensor
  2. Cooling system
  3. Thermostat
 Comes on DTC stored
P0128  Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
  1. Thermostat
  2. Cooling system
  3. ECT sensor
  4. ECM
 Comes on DTC stored
P0136  Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. HO2 sensor heater (sensor 2)
  4. Air Fuel Ratio (A/F) sensor (sensor 1)
  5. Engine room J/B (EFI relay)
  6. Gas leakage from exhaust system
 Comes on DTC stored
P0137  Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
  1. Open in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. HO2 sensor heater (sensor 2)
  4. Engine room J/B (EFI relay)
  5. Gas leakage from exhaust system
 Comes on DTC stored
P0138  Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
  1. Short in HO2 sensor (sensor 2) circuit
  2. HO2 sensor (sensor 2)
  3. ECM internal circuit malfunction
  4. Air-fuel Ratio (A/F) sensor (sensor 1)
 Comes on DTC stored
P0141  Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
  1. Open or short in HO2 sensor heater circuit
  2. HO2 sensor heater (sensor 2)
  3. Engine room J/B (EFI relay)
  4. ECM
 Comes on DTC stored
P0171  System Too Lean (Bank 1)
  1. Air induction system
  2. Injector blockage
  3. Mass Air Flow (MAF) meter
  4. Engine Coolant Temperature (ECT) sensor
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor (sensor 1) circuit
  8. A/F sensor (sensor D
  9. A/F sensor heater (sensor 1)
  10. Engine room J/B (EFI relay)
  11. A/F sensor heater and EFI relay circuits
  12. PCV valve and hose
  13. PCV hose connections
  14. ECM
 Comes on DTC stored
P0172  System Too Rich (Bank 1)
  1. Injector leakage or blockage
  2. MAF meter
  3. ECT sensor
  4. Ignition system
  5. Fuel pressure
  6. Gas leakage from exhaust system
  7. Open or short in A/F sensor(sensor 1) circuit
  8. A/F sensor (sensor 1)
  9. A/F sensor heater (sensor 1)
  10. Engine room J/B (EFI relay)
  11. A/F sensor heater and EFI relay circuits
  12. ECM
 Comes on DTC stored
P0220  Throttle / Pedal Position Sensor / Switch "B" Circuit
  1. TP sensor (built into throttle body)
  2. ECM
 Comes on DTC stored
P0222  Throttle / Pedal Position Sensor / Switch "B" Circuit Low Input
  1. TP sensor (built into throttle body)
  2. Short in VTA2 circuit
  3. Open in VC circuit
  4. ECM
 Comes on DTC stored
P0223  Throttle / Pedal Position Sensor / Switch "B" Circuit High Input
  1. TP sensor (built into throttle body)
  2. Open in VTA2 circuit
  3. Open in E2 circuit
  4. Short between VC and VTA2 circuits
  5. ECM
 Comes on DTC stored
P0300  Random / Multiple Cylinder Misfire Detected
  1. Open or short in engine wire harness
  2. Connector connection
  3. Vacuum hose connection
  4. Ignition system
  5. Injector
  6. Fuel pressure
  7. Mass Air Flow (MAF) meter
  8. Engine Coolant Temperature (ECT) sensor
  9. Compression pressure
  10. Valve clearance
  11. Valve timing
  12. PCV valve and hose
  13. PCV hose connections
  14. Air induction system
  15. ECM
 Comes on/Blinks (1) DTC stored
P0301  Cylinder 1 Misfire Detected Same as DTC P0300 Comes on/Blinks (1) DTC stored
P0302  Cylinder 2 Misfire Detected Same as DTC P0300 Comes on/Blinks (1) DTC stored
P0303  Cylinder 3 Misfire Detected Same as DTC P0300 Comes on/Blinks (1) DTC stored
P0304  Cylinder 4 Misfire Detected Same as DTC P0300 Comes on/Blinks (1) DTC stored
P0327  Knock Sensor 1 Circuit Low Input (Bank 1 or Single Sensor)
  1. Short in knock sensor circuit
  2. Knock sensor
  3. ECM
 Comes on DTC stored
P0328  Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
  1. Open in knock sensor circuit
  2. Knock sensor
  3. ECM
 Comes on DTC stored
P0335  Crankshaft Position Sensor "A" Circuit
  1. Open or short in CKP sensor circuit
  2. CKP sensor
  3. CKP sensor plate
  4. ECM
 Comes on DTC stored
P0339  Crankshaft Position Sensor "A" Circuit Intermittent Same as DTC P0335 - DTC stored
P0340  Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)
  1. Open or short in CMP sensor circuit
  2. CMP sensor
  3. Camshaft
  4. Jumped tooth of timing chain
  5. ECM
 Comes on DTC stored
P0351  Ignition Coil "A" Primary / Secondary Circuit
  1. Ignition system
  2. Open or short in IGF1 or IGT circuit (1 to 4) between ignition coil and ECM
  3. No. 1 to No. 4 ignition coils
  4. ECM
 Comes on DTC stored
P0352  Ignition Coil "B" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0353  Ignition Coil "C" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0354  Ignition Coil "D" Primary / Secondary Circuit Same as DTC P0351 Comes on DTC stored
P0420  Catalyst System Efficiency Below Threshold (Bank 1)
  1. Front exhaust pipe (with TWC)
  2. Gas leakage from exhaust system
  3. Air-Fuel Ratio (A/F) sensor (sensor 1)
  4. Heated Oxygen (HO2) sensor (sensor 2)
 Comes on DTC stored
P043E  Evaporative Emission System Reference Orifice Clog Up
  1. Canister pump module (Reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (Canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P043F  Evaporative Emission System Reference Orifice High Flow Same as DTC P043E Comes on DTC stored
P0441  Evaporative Emission Control System Incorrect Purge Flow
  1. Purge VSV
  2. Connector/wire harness (Purge VSV - ECM)
  3. ECM
  4. Canister pump module
  5. Leakage from EVAP system
  6. Leakage from EVAP line (Purge VSV- Intake manifold)
 Comes on DTC stored
P0450  Evaporative Emission Control System Pressure Sensor / Switch
  1. Canister pump module
  2. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  3. ECM
 Comes on DTC stored
P0451  Evaporative Emission Control System Pressure Sensor Range / Performance
  1. Canister pump module
  2. Connector/wire harness (Canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P0452  Evaporative Emission Control System Pressure Sensor / Switch Low Input Same as DTC P0451 Comes on DTC stored
P0453  Evaporative Emission Control System Pressure Sensor / Switch High Input Same as DTC P0451 Comes on DTC stored
P0455  Evaporative Emission Control System Leak Detected (Gross Leak)
  1. Fuel cap (loose)
  2. Leakage from EVAP line (Canister - Fuel tank)
  3. Leakage from EVAP line (Purge VSV - Canister)
  4. Canister pump module
  5. Leakage from fuel tank
  6. Leakage from canister
 Comes on DTC stored
P0456  Evaporative Emission Control System Leak Detected (Very Small Leak) Same as DTC P0455 Comes on DTC stored
P0500  Vehicle Speed Sensor "A"
  1. Open or short in speed signal circuit
  2. Vehicle speed sensor
  3. Combination meter
  4. ECM
  5. Skid control ECU
 Comes on DTC stored
P0504  Brake Switch "A"/"B" Correlation
  1. Short in stop light switch signal circuit
  2. STOP fuse
  3. IGN fuse
  4. Stop light switch
  5. ECM
 - DTC stored
P0505  Idle Control System Malfunction
  1. ETCS
  2. Air induction system
  3. PCV valve and hose
  4. PCV hose connections
  5. ECM
 Comes on DTC stored
P050A  Cold Start Idle Air Control System Performance
  1. Throttle body
  2. Mass Air Flow meter
  3. PCV system
  4. Air cleaner filter element
  5. Air induction system
  6. VVT system
  7. ECM
 Comes on DTC stored
P0560  System Voltage
  1. Open in back up power source circuit
  2. Battery
  3. Battery terminals
  4. EFI No. 1 fuse
  5. ECM
 Comes on DTC stored
P0604  Random Access Memory (RAM) ECM Comes on DTC stored
P0606  ECM/PCM Processor
  1. Exhaust gas leak
  2. HO2 Sensor
  3. ECM
 Comes on DTC stored
P0607  Control Module Performance
  1. ECM
 Comes on DTC stored
P0617  Starter Relay Circuit High
  1. Park/Neutral Position (PNP) switch
  2. Clutch pedal switch
  3. Starter relay circuit
  4. Ignition switch
  5. ECM
 Comes on DTC stored
P0630  VIN not Programmed or Mismatch - ECM / PCM ECM Comes on DTC stored
P0657  Actuator Supply Voltage Circuit / Open ECM Comes on DTC stored
P0724  Brake Switch "B" Circuit High
  1. Short in stop light switch signal circuit
  2. Stop light switch
  3. ECM
 Comes on DTC stored
P2004 (2) Intake Manifold Runner Control Stuck Open (Bank 1)
  1. Intake manifold runner valve (IMRV) motor circuit
  2. IMRV motor
  3. IMRV position sensor
  4. IMRV
  5. ECM
 Comes on DTC stored
P2006 (2) Intake Manifold Runner Control Stuck Closed (Bank 1) Same as DTC P2004 Comes on DTC stored
P2009 (2) Intake Manifold Runner Control Circuit Low (Bank 1)
  1. Open in IMRV motor circuit
  2. IMRV motor
  3. ECM
 Comes on DTC stored
P2010 (2) Intake Manifold Runner Control Circuit High (Bank 1)
  1. Short in IMRV motor circuit
  2. IMRV motor
  3. ECM
 Comes on DTC stored
P2014 (2) Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1)
  1. Open or short in IMRV position sensor circuit
  2. IMRV position sensor
  3. ECM
 Comes on DTC stored
P2016 (2) Intake Manifold Runner Position Sensor / Switch Circuit Low (Bank 1) Same as DTC P2014 Comes on DTC stored
P2017 (2) Intake Manifold Runner Position Sensor / Switch Circuit High (Bank 1) Same as DTC P2014 Comes on DTC stored
P2102  Throttle Actuator Control Motor Circuit Low.
  1. Open in throttle actuator circuit
  2. Throttle actuator
  3. ECM
 Comes on DTC stored
P2103  Throttle Actuator Control Motor Circuit High
  1. Short in throttle actuator circuit
  2. Throttle actuator
  3. Throttle valve
  4. Throttle body assembly
  5. ECM
 Comes on DTC stored
P2111  Throttle Actuator Control System - Stuck Open
  1. Throttle actuator
  2. Throttle body assembly
  3. Throttle valve
 Comes on DTC stored
P2112  Throttle Actuator Control System - Stuck Closed Same as DTC P2111 Comes on DTC stored
P2118  Throttle Actuator Control Motor Current Range / Performance
  1. Open in ETCS power source circuit
  2. Battery
  3. Battery terminals
  4. ETCS fuse
  5. ECM
 Comes on DTC stored
P2119  Throttle Actuator Control Throttle Body Range / Performance
  1. ETCS
  2. ECM
 Comes on DTC stored
P2120  Throttle / Pedal Position Sensor / Switch "D" Circuit
  1. APP sensor
  2. ECM
 Comes on DTC stored
P2121  Throttle / Pedal Position Sensor / Switch "D" Circuit Range / Performance
  1. Accelerator Pedal Position (APP) sensor
  2. ECM
 Comes on DTC stored
P2122  Throttle / Pedal Position Sensor / Switch "D" Circuit Low Input
  1. APP sensor
  2. Open in VCP1 circuit
  3. Open or ground short in VPA circuit
  4. ECM
 Comes on DTC stored
P2123  Throttle / Pedal Position Sensor / Switch "D" Circuit High Input
  1. APP sensor
  2. Open in EPA circuit
  3. ECM
 Comes on DTC stored
P2125  Throttle / Pedal Position Sensor / Switch "E" Circuit
  1. APP sensor
  2. ECM
 Comes on DTC stored
P2127  Throttle / Pedal Position Sensor / Switch "E" Circuit Low Input
  1. APP sensor
  2. Open in VCP2 circuit
  3. Open or ground short in VPA2 circuit
  4. ECM
 Comes on DTC stored
P2128  Throttle / Pedal Position Sensor / Switch "E" Circuit High Input
  1. APP sensor
  2. Open in EPA2 circuit
  3. ECM
 Comes on DTC stored
P2135  Throttle / Pedal Position Sensor / Switch "A" / "B" Voltage Correlation
  1. Short between VTA1 and VTA2 circuits
  2. TP sensor (built into throttle body)
  3. ECM
 Comes on DTC stored
P2138  Throttle / Pedal Position Sensor / Switch "D" / "E" Voltage Correlation
  1. Short between VPA and VPA2 circuits
  2. APP sensor
  3. ECM
 Comes on DTC stored
P2195  Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)
  1. Open or short in A/F sensor(sensor 1) circuit
  2. A/F sensor (sensor D
  3. A/F sensor heater (sensor 1)
  4. Engine room J/B (EFI relay)
  5. A/F sensor heater and EFI relay circuits
  6. ECM
 Comes on DTC stored
P2196  Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) Same as DTC P2195 Comes on DTC stored
P2237  Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)
  1. Open or short in A/F sensor (sensor 1) circuit
  2. A/F sensor (sensor 1)
  3. ECM
 Comes on DTC stored
P2238  Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1) Same as DTC P2237 Comes on DTC stored
P2239  Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1) Same as DTC P2237 Comes on DTC stored
P2252  Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1) Same as DTC P2237 Comes on DTC stored
P2253  Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1) Same as DTC P2237 Comes on DTC stored
P2401  Evaporative Emission Leak Detection Pump Stuck OFF
  1. Canister pump module (Reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (Canister pump module - ECM)
  3. EVAP system hose (pipe from air inlet port to canister pump module, canister filter, fuel tank vent hose)
  4. ECM
 Comes on DTC stored
P2402  Evaporative Emission Leak Detection Pump Stuck ON Same as DTC P2401 Comes on DTC stored
P2419  Evaporative Emission System Switching Valve Control Circuit Low Same as DTC P2401 Comes on DTC stored
P2420  Evaporative Emission System Switching Valve Control Circuit High
  1. Canister pump module (Reference orifice, leak detection pump, vent valve)
  2. Connector/wire harness (Canister pump module - ECM)
  3. ECM
 Comes on DTC stored
P2610  ECM / PCM Internal Engine Off Timer Performance ECM Comes on DTC stored
P2A00  A/F Sensor Circuit Slow Response (Bank 1 Sensor 1)
  1. Open or short in A/F sensor circuit
  2. A/F sensor
  3. ECM
 Comes on DTC stored
(1) Blinks when terrible misfire is detected.
(2) for PZEV
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