Engine Controls - Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Test Equipment
- Diagnostic Trouble Code Identification
- Diagnostic Monitoring Test Results
- Summary
- Diagnostic Tests
- Notes
- DTC P0031: Right Front Heated Oxygen Sensor (Ho2S) Heater Circuit Low
- DTC P0032: Right Front Ho2S Heater Circuit High
- DTC P0037: Right Rear Ho2S Heater Circuit Low
- DTC P0038: Right Rear Ho2S Heater Circuit High
- DTC P0051: Left Front Ho2S Heater Circuit Low
- DTC P0052: Left Front Ho2S Heater Circuit High
- DTC P0057: Left Rear Ho2S Heater Circuit Low
- DTC P0058: Left Rear Ho2S Heater Circuit High
- DTC P0102: Mass Airflow (MAF) Sensor Input Low
- DTC P0103: MAF Sensor Input Low
- DTC P0106: BARO Circuit Problem
- DTC P0107: BARO Sensor Input Low
- DTC P0108: BARO Sensor Input High
- DTC P0111: Intake Air Temperature (IAT) Circuit Problem
- DTC P0112: IAT Sensor Input Low
- DTC P0113: IAT Sensor Input High
- DTC P0116: Engine Coolant Temperature (ECT) Circuit Problem
- DTC P0117: ECT Sensor Input Low
- DTC P0118: ECT Sensor Input High
- DTC P0122: Throttle Position (TP) Sensor Input Low
- DTC P0123: TP Sensor Input High
- DTC P0125: Excessive Time To Enter Closed Loop
- DTC P0128: Thermostat Stuck Open
- DTC P0130: Right Front Ho2S Malfunction Or DTC P0150: Left Front Ho2S Malfunction
- DTC P0134: Right Front Ho2S - No Activity Detected Or DTC P0154: Left Front Ho2S - No Activity Detected
- DTC P0138: Right Rear Ho2S - Input High Or DTC P0158: Left Rear Ho2S - Input High
- DTC P0140: Right Rear Ho2S - No Activity Detected Or DTC P0160: Left Rear Ho2S - No Activity Detected
- DTC P0171: Right Bank Fuel Trim Too Lean Or DTC P0174: Left Bank Fuel Trim Too Lean
- DTC P0172: Right Bank Fuel Trim Too Rich Or DTC P0175: Left Bank Fuel Trim Too Rich
- DTC P0300: Random Misfire Detected
- DTC P0301-P0306: Cylinders No. 1-6 Misfire Detected
- DTC P0325: Knock Sensor Circuit Problem
- DTC P0335: Crankshaft Position Sensor Circuit Malfunction
- DTC P0401: EGR Flow Too Low
- DTC P0402: EGR Flow Too High
- DTC P0421/P0431: Warm Up Catalytic Converter Efficiency Below Limit
- DTC P0442: EVAP System Malfunction - Small Leak Detected
- DTC P0443: EVAP System - Purge Control Valve Circuit Malfunction
- DTC P0451: Fuel Tank Pressure Sensor Malfunction
- DTC P0452: Fuel Tank Pressure Sensor Input Low
- DTC P0453: Ftp Sensor Input High
- DTC P0455: EVAP System Malfunction - Block Or Large Leak Detected
- DTC P0456: EVAP System Malfunction - Small Leak Detected
- DTC P0461: Fuel Gauge Sending Unit Circuit Malfunction
- DTC P0462: Fuel Gauge Sending Unit Circuit Input Low
- DTC P0463: Fuel Gauge Sending Unit Circuit Input High
- DTC P0464: Fuel Gauge Sending Unit Circuit Performance
- DTC P0506: Idle Control - Rpm Low
- DTC P0507: Idle Control - Rpm High
- DTC P0550: Power Steering Switch Malfunction
- DTC P0703: Brake Switch Malfunction
- DTC P1102: MAF Sensor Inconsistent With TP Sensor (Less Than Expected)
- DTC P1103: MAF Sensor Inconsistent With Engine Speed (More Than Expected)
- DTC P1122: TP Sensor Stuck Closed (Less Than Expected)
- DTC P1123: TP Sensor Stuck Open (More Than Expected)
- DTC P1170: Right Front Oxygen Sensor - No Inversion Or DTC P1173: Left Front Oxygen Sensor - No Inversion
- DTC P1250: Pressure Regulator Control (PRC) Solenoid Valve Circuit Malfunction
- DTC P1309: Pcm Internal Malfunction
- DTC P1345: Camshaft Position Sensor Circuit Malfunction
- DTC P1449: Canister Drain Cut Valve (CDCV) - Circuit Malfunction
- DTC P1450: EVAP System Malfunction - Excessive Vacuum
- DTC P1487: EGR Boost Sensor Circuit Malfunction
- DTC P1496: EGR Valve Motor Coil No. 1 Open Or Short, DTC P1497: EGR Valve Motor Coil No. 2 Open Or Short, DTC P1498: EGR Valve Motor Coil No. 3 Open Or Short Or DTC P1499: EGR Valve Motor Coil No. 4 Open Or Short
- DTC P1504: IAC Valve Circuit Malfunction
- DTC P1512: IMRC Shutter Valve Stuck Closed
- DTC P1518: IMRC Shutter Valve Stuck Open
- DTC P1520: IMRC Drive Circuit Malfunction
- DTC P1562: Pcm Backup Battery Voltage Low
- DTC P1602: Immobilizer To Pcm Communication Error
- DTC P1603: Code Word Is Not Registered In Pcm
- DTC P1604: Key Id Numbers Not Registered In Pcm
- DTC P1621: Code Word Does Not Match After Engine Crank
- DTC P1622: Key Id Does Not Match
- DTC P1623: Code Word Or Key Id Read/Write Error In Pcm
- DTC P1624: Immobilizer System Communication Counter = 0
- DTC P1631: No Generator Output Voltage Signal
- DTC P1633: Battery Overcharge
- DTC P1634: Generator Terminal B Circuit Open
- Reference Voltage
- After Repair Procedure