Engine Control System (SFI) - Diagnosis
- How To Proceed With Troubleshooting
- Customer Problem Analysis Check
- Pre-Check
- Diagnostic Trouble Code Chart
- Location
- Terminals Of ECM
- Problem Symptoms Table
- DTC P0010: Camshaft Position "A" Actuator Circuit (Bank 1), DTC P0020: Camshaft Position "A" Actuator Circuit (Bank 2)
- DTC P0011: Camshaft Position "A" -Timing Over-Advanced Or System Performance (Bank 1), DTC P0012: Camshaft Position "A" -Timing Over-Retarded (Bank 1), DTC P0021: Camshaft Position "A" - Timing Over-Advanced Or System Performance (Bank 2), DTC P0022: Camshaft Position "A" - Timing Over-Retarded (Bank 2)
- DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A), DTC P0018: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
- DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1), DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1), DTC P0051: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 2 Sensor 1), DTC P0052: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 2 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 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: Engine Coolant Temperature Circuit Range/Performance Problem
- 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 P0220: Throttle/Pedal Position Sensor/Switch "B" Circuit, DTC P0222: Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input, DTC P0223: Throttle/Pedal Position Sensor/Switch "B" Circuit High Input, DTC P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
- 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 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 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 P0327: Knock Sensor 1 Circuit Low Input (Bank 1 Or Single Sensor), DTC P0328: Knock Sensor 1 Circuit High Input (Bank 1 Or Single Sensor), DTC P0330: Knock Sensor 2 Circuit (Bank 2), DTC P0332: Knock Sensor 2 Circuit Low Input (Bank 2), DTC P0333: Knock Sensor 2 Circuit High Input (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: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1 Or Single Sensor), DTC P0345: Camshaft Position Sensor "A" Circuit (Bank 2), DTC P0346: Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2)
- DTC P0351: Ignition Coil "A" Primary/Secondary Circuit, DTC P0352: Ignition Coil "B" Primary/Secondary Circuit, DTC P0353: Ignition Coil "C" Primary/Secondary Circuit, DTC P0354: Ignition Coil "D" Primary/Secondary Circuit, DTC P0355: Ignition Coil "E" Primary/Secondary Circuit, DTC P0356: Ignition Coil "F" 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 P0442: Evaporative Emission Control System Leak Detected (Small Leak), DTC P0446: Evaporative Emission Control System Vent Control Circuit, DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
- DTC P0451: Evaporative Emission Control System Pressure Sensor 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 P0504: Brake Switch "A"/"B" Correlation
- DTC P0505: Idle Air Control System
- DTC P0560: System Voltage
- DTC P0604: Internal Control 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 P0705: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- DTC P1645: Gateway Ecu Malfunction
- 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 Low Input, DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input, DTC P2125: Throttle/Pedal Position Sensor/Switch "E" Circuit, DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input, DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High Input, DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
- DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance
- DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1), DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1), DTC P2197: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 2 Sensor 1), DTC P2198: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 2 Sensor 1)
- DTC P2237: Oxygen Sensor Pumping Current Circuit/Open (For A/F Sensor)(Bank 1 Sensor 1), DTC P2238: Oxygen Sensor Pumping Current Circuit Low (For A/F Sensor)(Bank 1 Sensor 1), DTC P2239: Oxygen Sensor Pumping Current Circuit High (For A/F Sensor)(Bank 1 Sensor 1), DTC P2240: Oxygen Sensor Pumping Current Circuit/Open (For A/F Sensor)(Bank 2 Sensor 1), DTC P2241: Oxygen Sensor Pumping Current Circuit Low (For A/F Sensor)(Bank 2 Sensor 1), DTC P2242: Oxygen Sensor Pumping Current Circuit High (For A/F Sensor)(Bank 2 Sensor 1), DTC P2251: Oxygen Sensor Reference Ground Circuit/Open (For A/F Sensor)(Bank 1 Sensor 1), DTC P2252: Oxygen Sensor Reference Ground Circuit Low (For A/F Sensor)(Bank 1 Sensor 1), DTC P2253: Oxygen Sensor Reference Ground Circuit High (For A/F Sensor)(Bank 1 Sensor 1), DTC P2254: Oxygen Sensor Reference Ground Circuit/Open (For A/F Sensor)(Bank 2 Sensor 1), DTC P2255: Oxygen Sensor Reference Ground Circuit Low (For A/F Sensor)(Bank 2 Sensor 1), DTC P2256: Oxygen Sensor Reference Ground Circuit High (For A/F Sensor)(Bank 2 Sensor 1)
- DTC P2A00: A/F Sensor Circuit Slow Response (Bank 1 Sensor 1), DTC P2A03: A/F Sensor Circuit Slow Response (Bank 2 Sensor 1)
- ACIS Control Circuit
- Air Intake Control Circuit
- ECM Power Source Circuit
- Fuel Pump Control Circuit
- Mil Circuit
- TC Terminal Circuit