Engine Controls - Self-Diagnostics
- Introduction
- Component Locations
- Self-Diagnostic System
- Powertrain Control Module Location
- Programming
- Summary
- Fuel System Pressure Release
- Diagnostic Trouble Code Definitions
- Connector Identification
- Diagnostic Tests
- Notes
- DTC P0031: 1/1 O2 Sensor Heater Circuit Low, DTC P0032: 1/1 O2 Sensor Heater Circuit High, DTC P0037: 1/2 O2 Sensor Heater Circuit Low, DTC P0038: 1/2 O2 Sensor Heater Circuit High, DTC P0051: 2/1 O2 Sensor Heater Circuit Low Or DTC P0052: 2/1 O2 Sensor Heater Circuit High
- DTC P0071: Battery Temp Sensor Performance
- DTC P0107: Map Sensor Voltage Too Low
- DTC P0108: Map Sensor Voltage Too High
- DTC P0111: Intake Air Temp Performance
- DTC P0112: Intake Air Temp Sensor Voltage Low
- DTC P0113: Intake Air Temp Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125 : Closed Loop Temp Not Reached
- DTC P0131: 1/1 O2 Sensor Shorted To Ground, DTC P0137: 1/2 O2 Sensor Shorted To Ground, DTC P0151: 2/1 O2 Sensor Shorted To Ground Or DTC P0157: 2/2 O2 Sensor Shorted To Ground
- DTC P0132: 1/1 O2 Sensor Shorted To Voltage, DTC P0138: 1/2 O2 Sensor Shorted To Voltage, DTC P0152: 2/1 O2 Sensor Shorted To Voltage Or DTC P0158: 2/2 O2 Sensor Shorted To Voltage
- DTC P0133: 1/1 O2 Sensor Slow Response, DTC P0139: 1/2 O2 Sensor Slow Response, DTC P0153: 2/1 O2 Sensor Slow Response Or DTC P0159: 2/2 O2 Sensor Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure, DTC P0141: 1/2 O2 Sensor Heater Failure, DTC P0155: 2/1 O2 Sensor Heater Failure Or DTC P0161: 2/2 O2 Sensor Heater Failure
- DTC P0136: 1/2 O2 Sensor Heater Circuit Malfunction
- DTC P0171: 1/1 O2 Sensor Fuel System Lean Or DTC P0174: 2/1 O2 Sensor Fuel System Lean
- DTC P0172: 1/1 O2 Sensor Fuel System Rich Or DTC P0175: 2/1 O2 Sensor Fuel System Rich
- DTC P0182: CNG Temp Sensor Low
- DTC P0183: CNG Temp Sensor High
- DTC P0201: Injector # 1 Control Circuit, DTC P0202: Injector # 2 Control Circuit, DTC P0203: Injector # 3 Control Circuit, DTC P0204: Injector # 4 Control Circuit, DTC P0205: Injector # 5 Control Circuit, DTC P0206: Injector # 6 Control Circuit, DTC P0207: Injector # 7 Control Circuit And DTC P0208: Injector # 8 Control Circuit
- DTC P0300: Multiple Cylinder Misfire, DTC P0301: Cylinder #1 Misfire, DTC P0302: Cylinder # 2 Misfire, DTC P0303: Cylinder # 3 Misfire, DTC P0304: Cylinder # 4 Misfire, DTC P0305: Cylinder # 5 Misfire, DTC P0306: Cylinder # 6 Misfire, DTC P0307: Cylinder # 7 Misfire Or DTC P0308: Cylinder # 8 Misfire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil # 1 Primary Circuit
- DTC P0420: 1/1 Catalytic Converter Efficiency Or DTC P0432: 2/1 Catalytic Converter Efficiency
- DTC P0441: EVAP Purge Flow Monitor
- DTC P0442: EVAP Leak Monitor Medium (.040") Leak Detected, DTC P0455: EVAP Leak Monitor Large Leak Detected Or DTC P0456: EVAP Leak Monitor Small (.020") Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460: Fuel Level Unit No Change Over Miles Or DTC P0461: Fuel Level Unit No Change Over Time
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: Idle Air Control Motor Circuits
- DTC P0601: Pcm Internal Controller Failure
- DTC P1195: 1/1 O2 Sensor Slow During Catalyst Monitor, DTC P1196: 2/1 O2 Sensor Slow During Catalyst Monitor Or DTC P1197: 1/2 O2 Sensor Slow During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump/System Relay Control Circuit
- DTC P1290: CNG High Pressure Solenoid Relay Circuit
- DTC P1292: CNG Pressure Sensor High
- DTC P1293: CNG Pressure Sensor Low
- DTC P1294: Target Idle Not Reached
- DTC P1296: No 5 Volts To Map Sensor
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: Auto Shutdown Relay Control Circuit
- DTC P1389: No Auto Shutdown Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- DTC P1494: Leak Detection Pump SW Or Mechanical Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1687-No Cluster Bus Message
- DTC P1696: Pcm Failure EEPROM Write Denied
- Verification Tests