Engine Controls - Self-Diagnostics - 4.0L & 4.6L
- Introduction
- Self-Diagnostic System
- Test Equipment
- Summary
- Diagnostic Trouble Code Definitions
- Connector Identification
- Diagnostic Tests
- Notes
- Repair Confirmation Test Drive
- DTCS P0101-P0103: Mass Air Flow (MAF) Sensor Circuit
- DTCS P0111-P0113: Intake Air Temperature (IAT) Sensor Circuit
- DTCS P0116-P0118, P0125: Engine Coolant Temperature (ECT) Sensor Circuit
- DTCS P0121-P0123: Throttle Position (TP) Sensor Circuit
- DTCS P0130-P0133, PO136-P0139, P0150-P0153, P0156-P159, P0171-P0172, P0174-P0175, P1137-P1139, P1157-P1159, P1171-P1172 & P1185-P1196: Ho2S Circuit Malfunction
- DTCS P0181-P0183: Engine Fuel Temperature (Eft) Sensor
- DTCS P0201-P0208 & P1201-P1208: Fuel Injector Circuit Malfunction
- DTCS P0300-P0308: Misfire Detected In One Or More Cylinders
- DTCS P0326-P0328 & P0331-P0333: Knock Sensor (KS) Malfunction
- DTCS P0335 & P0336: Crankshaft Position (CKP) Sensor Malfunction
- DTC P0340: Camshaft Position (CMP) Sensor Malfunction
- DTCS P0420 & P0430: Catalytic Converter Efficiency Low
- DTCS P0441 & P0443: Pre-Advanced EVAP System Malfunction
- DTCS P0442, P0446, P1440, P1447, P1448 & P1496: Advanced EVAP System Malfunction
- DTCS P0451, P0452 & P0453: Fuel Tank Pressure Sensor Malfunction
- DTCS P0460-P0461: Fuel Level Sensor Malfunction
- DTCS P0500: Vehicle Speed Sensor (VSS) Signal Out Of Range
- DTCS P0506-P0507 & P1508-P1509: Idle Air Control (IAC) Valve
- DTCS P0560, P0562 & P0563: Battery & Charging System Voltage Inconsistent
- DTC P0605: ECM Data Corrupted
- DTCS P1137-P1139: Primary Ho2S "A" Circuit Malfunction
- DTCS P1157-P1159: Primary Ho2S "B" Circuit Malfunction
- DTCS P1171-P1172: Ho2S Too Lean/Rich Malfunction
- DTCS P1176-P1177: Long Term Fuel Trim Too Lean Or Rich, Banks 1 & 2 (Fuel Mass Flow Rate)
- DTCS P1178-P1179: Long Term Fuel Trim Too Lean Or Rich, Banks 1 & 2 (Air Mass Flow Rate)
- DTCS P1185-P1196: Ho2S Heater Malfunction
- DTCS P1313-P1315: Misfire Detected
- DTCS P1201-P1208: Fuel Injector Circuit Malfunction
- DTC P1316: Misfire Causing Excessive Emissions
- DTCS P1317-P1318: Rough Road Signal Malfunction
- DTCS P1361-P1364 & P1371-P1374: Ignition Coil Activation Malfunction
- DTCS P1514, P1516, & P1517: Park/Neutral Switch Malfunction
- DTC P1607: Malfunction Indicator Light (Mil) Malfunction
- DTCS P1621-P1622: Security Signal Malfunction
- DTCS P1701, P1703 & P1708: Transfer Box Malfunctions
- DTCS P1775-P1777: TCM Communication Malfunction With ECM