Engine Control System (Diagnostic Codes (P0420-P1603)
- SFI System
- DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1)
- DTC P043E: Evaporative Emission System Reference Orifice Clog Up; DTC P043F: Evaporative Emission System Reference Orifice High Flow; DTC P2401: Evaporative Emission Leak Detection Pump Stuck OFF; DTC P2402: Evaporative Emission Leak Detection Pump Stuck ON; DTC P2419: Evaporative Emission System Switching Valve Control Circuit Low
- DTC P0441: Evaporative Emission Control System Incorrect Purge Flow
- 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 P0455: Evaporative Emission Control System Leak Detected (Gross Leak); DTC P0456: Evaporative Emission Control System Leak Detected (Very Small Leak)
- DTC P0500: Vehicle Speed Sensor "A"
- DTC P0504: "A" / "B" Correlation
- DTC P0505: Idle Control System Malfunction
- DTC P050A: Cold Start Idle Air Control System Performance
- DTC P050B: Cold Start Ignition Timing Performance
- DTC P0560: System Voltage
- DTC P0604: Random Access Memory (RAM)
- DTC P0606: ECM / PCM Processor
- DTC P0607: Control Module Performance
- DTC P060A: Internal Control Module Monitoring Processor Performance
- DTC P060D: Internal Control Module Accelerator Pedal Position Performance
- DTC P060E: Internal Control Module Throttle Position Performance
- DTC P0617: Starter Relay Circuit High
- DTC P062F: Internal Control Module EEPROM Error
- DTC P0630: VIN not Programmed or Mismatch - ECM / PCM
- DTC P0657: Actuator Supply Voltage Circuit / Open
- DTC P0724: Brake Switch "B" Circuit High
- DTC P1603: Engine Stall History; DTC P1605: Rough Idling