Engine Control System - Diagnosis
- How To Proceed 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: Camshaft Position "A" -Timing Over-Actuator 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: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 1), DTC P0032: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 1), DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2), DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2), DTC P0051: Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 1), DTC P0052: Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 1), DTC P0057: Oxygen Sensor Heater Control Circuit Low (Bank 2 Sensor 2), DTC P0058: Oxygen Sensor Heater Control Circuit High (Bank 2 Sensor 2)
- DTC P0100: Mass Or Volume Air Flow Circuit, DTC P0102: Mass Or Volume Air Flow Circuit Low Input, DTC P0103: Mass Or Volume Air Flow Circuit High Input
- DTC P0101: Mass Or Volume Air Flow Circuit Range/Performance Problem
- DTC P0110: Intake Air Temperature Circuit, DTC P0112: Intake Air Temperature Circuit Low Input, DTC P0113: Intake Air Temperature Circuit High Input
- DTC P0115: Engine Coolant Temperature Circuit, DTC P0117: Engine Coolant Temperature Circuit Low Input, DTC P0118: Engine Coolant Temperature Circuit High Input
- DTC P0116: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
- DTC P0120: Throttle Pedal Position Sensor/Switch "A" Circuit, DTC P0122: Throttle Pedal Position Sensor/Switch "A" Circuit Low Input, DTC P0123: Throttle Pedal Position Sensor/Switch "A" Circuit 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: Oxygen Sensor Circuit (Bank 1 Sensor 1), DTC P0150: Oxygen Sensor Circuit (Bank 2 Sensor 1), DTC P2195: Oxygen Sensor Signal Stack Lean (Bank 1 Sensor 1), DTC P2196: Oxygen Sensor Signal Stack Rich (Bank 1 Sensor 1), DTC P2197: Oxygen Sensor Signal Stack Lean (Bank 2 Sensor 1), DTC P2198: Oxygen Sensor Signal Stack Rich (Bank 2 Sensor 1)
- DTC P0133: Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1), DTC P0153: Oxygen Sensor Circuit Slow Response (Bank 2 Sensor 1)
- DTC P0134: Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1), DTC P0154: Oxygen Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
- DTC P0136: Oxygen Sensor Circuit Malfunction (Bank 1 Sensor 2), DTC P0156: Oxygen Sensor Circuit Malfunction (Bank 2 Sensor 2)
- DTC P0171: System too Lean (Bank 1), DTC P0172 System Too Rich (Bank 1), DTC P0174: System Too Lean (Bank 2), DTC P0175: System Too Rich (Bank 2)
- DTC P0230: Fuel Pump Primary Circuit
- DTC P0300: Random/Multiple Cylinder Misfire Detected, DTC P0301: Cylinder 1 Misfire Detected, DTC P0302: Cylinder 2 Misfire Detected, DTC P0303: Cylinder 3 Misfire Detected, DTC P0304: Cylinder 4 Misfire Detected, DTC P0305: Cylinder 5 Misfire Detected, DTC P0306: Cylinder 6 Misfire Detected
- DTC P0325: Knock Sensor 1 Circuit (Bank 1 or Single Sensor), DTC P0330: Knock Sensor 2 Circuit Malfunction (Bank 2)
- DTC P0335: Crankshaft Position Sensor "A" circuit, DTC P0339: Crankshaft Position Sensor "A" circuit Intermittent
- DTC P0340: Camshaft Position Sensor "A" Circuit (Bank 1 Or Single Sensor), DTC P0341: Camkshaft Position Sensor "A" Circuit Range/Performance (Single Sensor)
- DTC P0351: Igniter Coil "A" Primary/Secondary Circuit
- DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1), DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2)
- DTC P0441: Evaporative Emission Control System Incorrect Purge Flow, DTC P0446: Evaporative Emission Control System Vent Control Circuit
- DTC P0442: Evaporative Emission Control System Leak Detected (Small Leak), DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
- DTC P0451: Evaporative Emission Control System Pressure Sensor/Switch Range/Performance, DTC P0452: Evaporative Emission Control System Pressure Sensor/Switch Low Input, DTC P0453: Evaporative Emission Control System Pressure Sensor/Switch High Input
- DTC P0500: Vehicle Speed Sensor "A", DTC P0503: Vehicle Speed Sensor "A" Intermittent / Erratic / High
- DTC P0505: Idle Air Control System
- DTC P0550: Power Steering Pressure Sensor/Switch Circuit, DTC P0552: Power Steering Pressure Sensor/Switch Circuit Low Input, DTC P0553: Power Steering Pressure Sensor/Switch Circuit High Input
- DTC P0560: System Voltage
- DTC P0604: Internal Conform Module Random Access Memory (RAM) Error, DTC P0606: ECM/PCM Processor, DTC P0607: Control Module Performance, DTC P0657: Actuator Supply Voltage Circuit / Open
- DTC P0617: Starter Relay Circuit High
- DTC P1126: Magnetic Clutch Circuit
- DTC P2102: Throttle Actuator Control Motor Circuit Low, DTC P2103: Throttle Actuator Control Motor Circuit High
- DTC P2111: Throttle Actuator Control System-Stuck Open, DTC P2112: Throttle Actuator Control System-Stuck Closed
- DTC P2118: Throttle Actuator Control Motor Current Range/Performance
- DTC P2119: Throttle Actuator Control Throttle Body Range/Performance
- DTC P2120: Throttle/pedal Position Sensor/Switch "D" Circuit, DTC P2122: Throttle/pedal Position Sensor/Switch "D" Circuit, DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input
- DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance
- ECM Power Source Circuit
- IACV Control Circuit
- MIL Circuit Malfunction
- TC Terminal Circuit