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Engine - Diagnostics Expand All (for easy ctrl-f) Collapse All How To Proceed With Troubleshooting Customer Problem Analysis Check Pre-Check Registration Readiness Monitor Drive Pattern Problem Symptoms Table Terminals Of ECM Diagnostic Trouble Code Chart Parts Location Circuit Inspection DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1) DTC P0011: Camshaft Position "A" -Timing Over-Advanced Or System Performance (Bank 1) DTC P0012: Camshaft Position "A" -Timing Over-Retarded (Bank 1) DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A) DTC P0031, P0032: Oxygen (A/F) Sensor Heater Control Circuit Low/High (Bank 1 Sensor 1) DTC P0037, P0038: Oxygen Sensor Heater Control Circuit Low/High (Bank 1 Sensor 2) DTC P0100, P0102, P0103: Mass Or Volume Air Flow Circuit Malfunction 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, P0220, P0222, P0223, P2135: Throttle/Pedal Position Sensor/Switch "A & B" Circuit Malfunction Low/High Input & Throttle/Pedal Position Sensor/Switch "A & B" Voltage Correction 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 P0136: Oxygen Sensor Circuit Malfunction (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 P0327, P0328: Knock Sensor 1 Circuit Low/High Input (Bank 1 Or Single Sensor) DTC P0335, P0339: Crankshaft Position Sensor "A" Circuit Malfunction/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/Secondary Circuit DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) DTC P0441, P0446, P2418: Evaporative Emission Control System Incorrect Purge Flow/Vent Control Circuit/Valve Control Circuit/Open DTC P0442, P0455, P0456: Evaporative Emission Control System Leak Detected (Small Leak/Gross 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 Malfunction DTC P0504: Brake Switch "A"/"B" Correlation DTC P0505: Idle Air Control System DTC P0560: System Voltage DTC P0604, P0606, P0607, P0657: Internal Control Module Random Access Memory (Ram) Error, ECM/Pcm Processor, Control Module Performance & Actuator Supply Voltage Circuit/Open DTC P0617: Starter Relay Circuit High DTC P0630: VIN Not Programmed Of Mismatch - ECM/Pcm DTC P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input) DTC P2102, P2103: Throttle Actuator Control Motor Circuit Low/High DTC P2111, P2112: Throttle Actuator Control System-Stuck Open/Closed DTC P2118: Throttle Actuator Control Motor Current Range/Performance DTC P2119: Throttle Actuator Control Throttle Body Range Performance DTC P2120, P2122, P2123, P2125, P2127, P2128, P2138: Throttle/Pedal Position Sensor/Switch "D & E" Circuit Low/High Input & Throttle/Pedal Position Sensor/Switch "D & E" Voltage Correlation DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance DTC P2195, P2196: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1) & Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1) DTC P2238, P2239, P2252, P2253: Oxygen Sensor Pumping Current Circuit Low/High (For A/F Sensor) (Bank 1 Sensor 1) DTC P2A00: A/F Sensor Circuit Slow Response (Bank 1 Sensor 1) ECM Power Source Circuit Fuel Pump Control Circuit Mil Circuit Malfunction