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Diagnostic Trouble Code Reference Chart

DIAGNOSTIC TROUBLE CODES REFERENCE CHART

DTC Description Circuit Test/Step: KOEO Circuit Test/Step: KOER Circuit Test/Step: CONT.
No Code  No Codes/Codes Not Listed QA1 QA1 QA1
111 System Pass Pass Pass Pass
112  Intake Air Temperature Sensor Circuit Low Input DA20 - DA90
113  Intake Air Temperature Sensor Circuit High Input DA10 - DA90
114  Intake Air Temperature Sensor Circuit Voltage Higher Or Lower Than Expected DA1 DA1 -
116  Engine Coolant Temperature Sensor Circuit Voltage Higher Or Lower Than Expected DA1 DA1 -
117  Engine Coolant Temperature Sensor Circuit Low Input DA20 - DA90
118  Engine Coolant Temperature Sensor Circuit High Input DA10 - DA90
121 Throttle Position Sensor Fault DH  2 DH  1 G  1
122  Throttle Position Sensor Circuit Low Input DH10 - DH94
123  Throttle Position Sensor Circuit High Input DH3 - DH90
124  Throttle Position Sensor Voltage Higher Than Expected - - G1
125  Throttle Position Sensor Voltage Lower Than Expected - - G1
126  Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Voltage Higher/Lower Than Expected DF1 DF1 DF90
128  Manifold Absolute Pressure Sensor Vacuum Hose Damaged/Disconnected - - DF11
129  Insufficient Mass Air Flow Change During Dynamic Response Test KOER - DC13 -
136  System Indicates Lean (Bank 2) - H1 -
137  System Indicates Rich (Bank 2) - H1 -
139  No Heated Oxygen Sensor (HO2S-2) Switches Detected (Bank 2) - - H1
141  Fuel System Indicates Lean - - H1
144  No Heated Oxygen Sensor (HO2S-1) Switches Detected (Bank 1) - - H1
157  Mass Air Flow Sensor Circuit Low Input - - DC10
158  Mass Air Flow Sensor Circuit High Input DC22 - DC22
159  Mass Air Flow Sensor Circuit Voltage Higher Or Lower Than Expected DC1 DC1 -
167  Insufficient Throttle Position Change During Dynamic Response Test KOER - DH20 -
171  Fuel System At Adaptive Limits (Bank 1) - - H1
172  System Indicates Lean (Bank 1) - H1 H1
173  System Indicates Rich (Bank 1) - H1 H1
174  Fuel Control - - H1
175  Fuel System At Adaptive Limits (Bank 2) - - H1
176  System Indicates Lean (Bank 2) - - H1
177  System Indicates Rich (Bank 2) - - H1
178  Fuel Control - - H1
179  Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (Bank 1) - - HA1
181  Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (Bank 1) - - HA1
184  Mass Air Flow Sensor Voltage Higher Than Expected - - G7
185  Mass Air Flow Sensor Voltage Lower Than Expected - - G7
186  Injector Pulsewidth Higher Than Expected - - G9
187  Injector Pulsewidth Lower Than Expected - - G7
188  Fuel System At Lean Adaptive Limit At Part Throttle, System Rich (Bank 2) - - HA1
189  Fuel System At Rich Adaptive Limit At Part Throttle, System Lean (Bank 2) - - HA1
194  Fuel Control - - H5
195  Fuel Control - - H5
211
With Distributor Ignition  Profile Ignition Pickup Circuit Failure - - NA1
With Electronic Ignition  Profile Ignition Pickup Circuit Failure - - NC1
212
With Distributor Ignition  Loss Of Ignition Diagnostic Monitor Input To PCM/SPOUT Circuit Grounded - - NA2
With Electronic Ignition  Loss Of Ignition Diagnostic Monitor Input To PCM/SPOUT Circuit Grounded - - NC3
213
With Distributor Ignition  SPOUT Circuit Open - PA1 -
With Electronic Ignition  SPOUT Circuit Open - PC1 -
214  Cylinder Identification Circuit Failure - - DR1
215 Coil 1 Primary Circuit Failure - - (1)
216 Coil 2 Primary Circuit Failure - - (1)
217 Coil 3 Primary Circuit Failure - - (1)
218 Loss Of Ignition Diagnostic Monitor Signal (Left Side) - - (1)
222 Loss Of Ignition Diagnostic Monitor Signal (Right Side) - - (1)
223 Loss Of Dual Plug Inhibit Control - - (1)
224 Coil 1/2/3/4 Primary Circuit Failure - - (1)
225  Knock Not Sensed During Dynamic Response Test - DG1 -
226  Ignition Diagnostic Monitor Signal Not Received NC2 - -
232 Coil 1/2/3/4 Primary Circuit Failure - - (1)
238 Coil 4 Primary Circuit Failure - - (1)
244  Coil 4 Primary Circuit Failure - DR1 -
326
Probe  Exhaust Gas Recirculation Circuit Voltage Lower Than Expected - - DB10
Contour/Mystique  Exhaust Gas Recirculation Circuit (DPFE) Voltage Lower Than Expected - DL22 -
327
Probe  Exhaust Gas Recirculation Circuit Below Minimum Voltage DD1 DD1 DD90
Contour/Mystique  Exhaust Gas Recirculation Circuit (DPFE) Below Minimum Voltage DL1 DL22 DL90
328  Exhaust Gas Recirculation Closed Valve Voltage Lower Than Expected DN25 DN25 DN90
332
Probe  Insufficient Exhaust Gas Recirculation Flow - DD30 DD100
Contour/Mystique  Insufficient Exhaust Gas Recirculation Flow - DL30 DL90
334  Exhaust Gas Recirculation Closed Valve Voltage Higher Than Expected DN20 DN20 DN115
335  Exhaust Gas Recirculation Sensor Voltage Higher/Lower Than Expected DL8 - -
336  Exhaust Pressure High/Exhaust Gas Recirculation (DPFE) Circuit Voltage Higher Than Expected - DL50 DL90
337
Probe  Exhaust Gas Recirculation Circuit Above Maximum Voltage DD10 DD10 DD90
Contour/Mystique  Exhaust Gas Recirculation Circuit (DPFE) Above Maximum Voltage DL5 DL50 DL90
338  Engine Coolant Temperature Lower Than Expected - - DA100
339  Engine Coolant Temperature Higher Than Expected - - DA101
341  Octane Adjust Service Pin Open KP1 - -
411  Cannot Control RPM During KEOR Low RPM Check - KE15 -
412  Cannot Control RPM During KEOR High RPM Check - KE1 -
452  Insufficient Input From Vehicle Speed Sensor To Powertrain Control Module - - DP1
511 Powertrain Control Module Read Only Memory Test Failure (KOEO) Replace PCM Replace PCM Replace PCM
512  Powertrain Control Module Keep Alive Memory Test Failure - - QB1
513  Powertrain Control Module Internal Voltage Failure (KOEO) QD1 QD1 QD1
519
Probe  Power Steering Pressure Switch Circuit Open FF10 - -
Contour/Mystique  Power Steering Pressure Sensor Circuit Open DT1 DT1 DT1
521
Probe  Power Steering Pressure Switch Circuit Did Not Change States - FF20 -
Contour/Mystique  Power Steering Pressure Sensor Circuit Did Not Change States - DT1 -
522  Vehicle Not In PARK Or NEUTRAL During KOEO TD1 - -
525  Vehicle In Gear / A/C On TA1 - TA1
528  Clutch Pedal Position Switch Circuit Failure - - TA1
529  Data Communication Link Or Powertrain Control Module Circuit Failure - - ML25
532  Cluster Control Assembly Circuit Failure - - ML25
533  Data Communication Link Or Electronic Instrument Cluster Circuit Failure - - ML25
536  Brake On/Off Circuit Failure / Not Actuated During KOER - FD1 FD90
538  Insufficient RPM Change Or Invalid Cylinder Balance Test - M1 -
539
Probe  A/C On / Defrost On During KOEO KM70 - -
Countour/Mystique  A/C On / Defrost On During KOEO KM40 KM40 -
542  Fuel Pump Circuit Open - Powertrain Control Module To Motor Ground J10 - J90
543  Fuel Pump Circuit Open - Battery To Powertrain Control Module J20 - J93
551  Idle Air Control Circuit Failure KT1 - -
554  Fuel Pressure Regulator Control Circuit Failure KN1 - -
556  Fuel Pump Relay Primary Circuit Failure J1 - -
558  Exhaust Gas Recirculation Vacuum Regulator Circuit Failure DL11 - -
559  Air Conditioning On Relay Circuit Failure KM60 - -
563  High Fan Control Circuit Failure KF1 - -
564  Fan Control Circuit Failure KF1 - -
565  Canister Purge Circuit Failure KD6 - -
566  3-4 Shift Solenoid Circuit Failure TC1 - -
569  Auxiliary Canister Purge Circuit Failure KD6 - -
571  EGR Atmospheric Pressure Supply Solenoid Circuit Failure DD20 - -
572  EGR Vacuum Supply Solenoid Circuit Failure DD20 - -
593  Heated Oxygen Sensor Heater Circuit Failure H40 - H40
617  1-2 Shift Error - - TG90
618  2-3 Shift Error - - TG90
619  3-4 Shift Error - - TG90
621  Shift Solenoid 1 Circuit Failure TC1 - -
622  Shift Solenoid 2 Circuit Failure TC1 - -
623  Transmission Control Indicator Lamp Circuit Failure TB3 - -
624 Electronic Pressure Control Circuit Failure TC  10 - TG  90
625 Electronic Pressure Control Driver Open In Powertrain Control Module TC  10 - TG  90
626  Coast Clutch Solenoid Circuit Failure TC1 - -
628  Excessive Converter Clutch Slippage - - TG90
629 Torque Converter Clutch Solenoid Circuit Failure TC  1 - TG  90
631  Transmission Control Indicator Lamp Circuit Failure TB3 - -
632 Transmission Control Switch Circuit Did Not Change States During KOER - TB  2 NA  2
634 Transmission Range Voltage Higher/Lower Than Expected TD  1 - TG  90
636  Transmission Fluid Temperature Higher Or Lower Than Expected TE1 TE1 -
637 Transmission Fluid Temperature Sensor Circuit High Input/Circuit Open TE  10 - TG  90
638 Transmission Fluid Temperature Sensor Circuit Low Input/Circuit Shorted TE  20 - TG  90
639  Insufficient Input From Turbine Shaft Speed Sensor - TF1 TF90
641  Shift Solenoid 3 Circuit Failure TC1 - -
643  Coast Clutch Solenoid Circuit Failure TC20 - TC30
645  Incorrect Gear Ratio - 1st Gear - - TG90
646  Incorrect Gear Ratio - 2nd Gear - - TG90
647  Incorrect Gear Ratio - 3rd Gear - - TG90
648  Incorrect Gear Ratio - 4th Gear - - TG90
649  Electronic Pressure Control Higher Or Lower Than Expected - - TG90
651  Electronic Pressure Control Circuit Failure - - TG90
652  Torque Converter Clutch Solenoid Circuit Failure TC1 - -
654  Transmission Range Sensor Indicating Not In PARK During Self-Test TD1 - -
656  Torque Converter Clutch Slippage - - TG90
657  Transmission Overtemperature - - TE100
659  High Vehicle Speed In Park - - TG90
667 Transmission Range Circuit Voltage Below Minimum Voltage TD  1 TD  1 TG  90
668 Transmission Range Circuit Voltage Above Maximum Voltage TD  1 TD  1 TG  90
675  Transmission Range Sensor Circuit Voltage Out Of Range - - TG90
998 Hard Fault Present - FMEM Mode TC  10 (2) FMEN (2) FMEN
(1) Refer to SYSTEM/COMPONENT TESTS - EEC-IV (2.0L) article
(2) Service Diagnostic Trouble Codes as Necessary
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