Engine Controls - Self-Diagnostics
- Introduction
- Component Locations
- Self-Diagnostic System
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- Check Engine Light Does Not Come On
- Check Engine Light Stays On
- DTC P0106: Map Sensor (Mechanical)
- DTC P0107: Map Sensor Circuit (Low Voltage)
- DTC P0108: Map Sensor Circuit (High Voltage)
- DTC P0112: IAT Sensor Circuit (Low Voltage)
- DTC P0113: IAT Sensor Circuit (High Voltage)
- DTC P0116: ECT Sensor Circuit (Range/Performance)
- DTC P0117: ECT Sensor Circuit (Low Voltage)
- DTC P0118: ECT Sensor Circuit (High Voltage)
- DTC P0122: Throttle Position Sensor Circuit (Low Voltage)
- DTC P0123: Throttle Position Sensor (High Voltage)
- DTC P0131 Or P0151: Rear Or Front Primary Ho2S (Low Voltage)
- DTC P0132 Or P0152: Rear Or Front Primary Ho2S (High Voltage)
- DTC P0133 Or P0153: Rear Or Front Primary Ho2S (Slow Response)
- DTC P0135, P0141, P0155 Or P0161: Ho2S Heater Circuit Malfunction
- DTC P0137 Or P0157: Rear Or Front Secondary Ho2S (Low Voltage)
- DTC P0138 Or P0158: Rear Or Front Secondary Ho2S (High Voltage)
- DTC P0139 Or P0159: Rear Or Front Secondary Ho2S (Slow Response)
- DTC P0171, P0172, P0174 Or P0175: System Too Lean/Rich
- DTC P0325 Or P0330: Rear Or Front Knock Sensor
- DTC P0335, P0336, P1336, P1337, P1381, P1382, P1386, P1387: CKP/CYP Sensor (Circuit Malfunction)
- DTC P0401: EGR System (Insufficient Flow)
- DTC P0420 Or P0430: Rear Or Front Three Way Catalytic Converter
- DTC P0441: Insufficient EVAP Purge Flow
- DTC P0500: Vehicle Speed Sensor
- DTC P1107 Or P1108: BARO Sensor (Low Or High Voltage)
- DTC P1201, P1202, P01203, P1204, P1205, P1206 Or P1301, P1302, P1303, P1304, P1305, P1306: Misfire Detected
- DTC P1241 Or P1242: Throttle Valve Control Motor Circuit Malfunction
- DTC P1243 Or P1244: Insufficient Throttle Position
- DTC P1246, P1247 Or P1248: Accelerator Position Sensor Circuit Malfunction
- DTC P1259 Or P1279: Rear Or Front VTEC (Pressure Switch Or Solenoid Valve)
- DTC P1300: Random Misfire
- DTC P1316 Or P1317: Spark Plug Voltage Detection Module
- DTC P1318 Or P1319: Spark Plug Voltage Detection Module Reset
- DTC P1459: EVAP Purge Flow Switch
- DTC P1491: EGR Valve System Malfunction
- DTC P1498: EGR System Valve Lift Sensor Circuit (High Voltage)
- DTC P1607 Or P1608: ECM Internal Circuit Failure
- DTC P1671 Or P1672: A/T FI Signal "B" (No Signal Or Failure)
- Special Tools