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Engine - Diagnostics Expand All (for easy ctrl-f) Collapse All How To Preceded With Troubleshooting Customer Problem Analysis Check Pre-Check Readiness Monitor Drive Pattern Diagnostic Trouble Code Chart Parts Location Terminals Of ECM Problem Symptoms Table Circuit Inspection DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) DTC P0011, P0012: Camshaft Position "A" - Timing Over - Advanced or System Performance/Timing Over -Retarded (Bank 1) DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) DTC P0031, P0032, P0037, P0038: Oxygen Sensor Heater Control Circuit Low/High (Bank 1 Sensor 1 & 2) DTC P0100, P0102, P0103: Mass or Volume Air Flow Circuit Low/High Input DTC P0101: Mass or Volume Air Flow Circuit Range/ Performance Problem DTC P0110, P0112, P0113: Intake Air Temperature Circuit Low/High Input DTC P0115, P0117, P0118: Engine Coolant Temperature Circuit Low/High Input DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem DTC P0120, P0122, P0123: Throttle/Pedal Position Sensor/Switch "A" Circuit Low/High Input DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem DTC P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) DTC P0130, P2195, P2196: Oxygen Sensor Circuit, Signal Stuck Lean/Rich (Bank 1 Sensor 1) DTC P0133: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1) DTC P0134: Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1) DTC P0136, P0138: Oxygen Sensor Circuit Malfunction/High Voltage (Bank 1 Sensor 2) DTC P0171, P0172: System too Lean/Rich (Bank 1) DTC P0300, P0301, P0302, P0303, P0304: Random/Multiple Cylinder Misfire Detected & Cylinder 1-4 Misfire Detected DTC P0325: Knock Sensor 1 Circuit (Bank 1 or Single Sensor) DTC P0335, P0339: Crankshaft Position Sensor "A" Circuit/Intermittent DTC P0340, P0341: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 or Single Sensor) DTC P0351, P0352, P0353, P0354: Ignition Coil "A-D" Primary/Circuit DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) DTC P0441, P0442, P0446, P0456: Evaporative Emission Control System Incorrect Purge Flow/Leak Detected/Vent Control Circuit (small leak/very small leak) DTC P0451, P0452, P0453: Evaporative Emission Control System Pressure Sensor/Switch Range/Performance Low/High Input DTC P0500: Vehicle Speed Sensor "A" DTC P0505, P0511: Idle Air Control System Circuit DTC P0550, P0552, P0553: Power Steering Pressure Sensor/Switch Circuit Low/High Input DTC P0560: System Voltage DTC P0606: ECM/PCM Processor DTC P0617: Starter Relay Circuit High ECM Power Source Circuit Fuel Pump Control Circuit Stop Light Switch Circuit