Engine Control System Self-Diagnostics - 3.8L
- Introduction
- Self-Diagnostic System
- Diagnostic System Checks
- Programming
- Inspection/Maintenance Procedures
- Summary
- Diagnostic Trouble Code Definitions
- System Tests
- Diagnostic Tests
- Notes
- DTC P0101: Mass Airflow Sensor Performance
- DTC P0102: Mass Airflow Sensor Circuit Low Frequency
- DTC P0103: Mass Airflow Sensor Circuit High Frequency
- DTC P0107: Manifold Absolute Pressure Sensor Circuit Low Voltage
- DTC P0108: Manifold Absolute Pressure Sensor Circuit High Voltage
- DTC P0112: Intake Air Temperature Sensor Circuit Low Voltage
- DTC P0113: Intake Air Temperature Sensor Circuit High Voltage
- DTC P0117: Engine Coolant Temperature Sensor Circuit Low Voltage
- DTC P0118: Engine Coolant Temperature Sensor Circuit High Voltage
- DTC P0125: Engine Coolant Temperature Excessive Time To Enter Closed Loop Fuel Control
- DTC P0128: Engine Coolant Temperature Excessive Time To Reach Operating Temperature
- DTC P0130: Ho2S Circuit Malfunction - Bank 1, Sensor 1
- DTC P0131: Ho2S Circuit Voltage Low - Bank 1, Sensor 1
- DTC P0132: Ho2S Circuit Voltage High - Bank 1, Sensor 1
- DTC P0133: Ho2S Slow Response - Bank 1, Sensor 1
- DTC P0134: Ho2S Circuit Insufficient Activity - Bank 1, Sensor 1
- DTC P0135: Ho2S Heater Performance - Bank 1, Sensor 1
- DTC P0137: Ho2S Circuit Low Voltage - Bank 1, Sensor 2
- DTC P0138: Ho2S Circuit High Voltage - Bank 1, Sensor 2
- DTC P0140: Ho2S Circuit Insufficient Activity - Bank 1, Sensor 2
- DTC P0141: Ho2S Heater Performance - Bank 1, Sensor 2
- DTC P0150: Ho2S Circuit Malfunction - Bank 2, Sensor 1
- DTC P0151: Ho2S Circuit Low Voltage - Bank 2, Sensor 1
- DTC P0152: Ho2S Circuit High Voltage - Bank 2, Sensor 1
- DTC P0153: Ho2S Slow Response - Bank 2, Sensor 1
- DTC P0154: Ho2S Circuit Insufficient Activity - Bank 2, Sensor 1
- DTC P0155: Ho2S Heater Circuit - Bank 2, Sensor 1
- DTC P0171: Fuel Trim System Lean - Bank 1; P0174: Fuel Trim System Lean - Bank 2
- DTC P0172: Fuel Trim System Rich - Bank 1; DTC P0175: Fuel Trim System Rich - Bank 2
- DTC P0201-P0206: Injector Control Circuit
- DTC P0230: Fuel Pump Relay Control Circuit
- DTC P0300-P0306: Engine Misfire Detected
- DTC P0325: Knock Sensor Module Performance
- DTC P0327: Knock Sensor No. 1 Circuit; P0332: Knock Sensor No. 2 Circuit
- DTC P0336: Crankshaft Position Sensor 18X Reference Circuit Malfunction
- DTC P0341: Camshaft Position Sensor Mismatch
- DTC P0401: Insufficient EGR Flow
- DTC P0403: EGR Control Circuit Malfunction
- DTC P0404: EGR Valve Desired Position Not Met
- DTC P0405: EGR Position Sensor Signal Voltage Excessively Low
- DTC P0420: Catalyst System Low Efficiency
- DTC P0440: Evaporative Emission System
- DTC P0442: Evaporative Emission System Small Leak Detected
- DTC P0443: Evaporative Emission Purge Solenoid Control Circuit
- DTC P0446: Evaporative Emission Vent System Performance
- DTC P0449: EVAP Canister Vent Solenoid Valve Control Circuit
- DTC P0452: Fuel Tank Pressure Sensor Circuit Low Voltage
- DTC P0453: Fuel Tank Pressure Sensor Circuit High Voltage
- DTC P0480: Cooling Fan Relay No. 1 Control Circuit
- DTC P0481: Cooling Fan Relays No. 2 & 3 Control Circuit
- DTC P0506: Idle Speed Low
- DTC P0507: Idle Speed High
- DTC P0530: A/C Refrigerant Pressure Sensor Circuit
- DTC P0601: Pcm Internal Malfunction
- DTC P0602: Pcm Internal Malfunction
- DTC P0604: Pcm Internal Malfunction
- DTC P0606: Pcm Internal Malfunction
- DTC P0650: Malfunction Indicator Light (Mil) Control Circuit
- DTC P1106: Manifold Absolute Pressure Sensor Circuit High Voltage
- DTC P1107: Manifold Absolute Pressure Sensor Circuit Low Voltage
- DTC P1112: Intake Air Temperature Sensor Circuit Intermittent Low Voltage
- DTC P1114: Engine Coolant Temperature Sensor Circuit Intermittent Low Voltage
- DTC P1115: Engine Coolant Temperature Sensor Circuit Intermittent High Voltage
- DTC P1120: Throttle Position Sensor 1 Voltage Out Of Range
- DTC P1125: Accelerator Pedal Position Sensors Out Of Range
- DTC P1133: Ho2S Insufficient Switching - Bank 1, Sensor 1
- DTC P1134: Ho2S Transition Time Ratio - Bank 1, Sensor 1
- DTC P1153: Ho2S Insufficient Switching - Bank 2, Sensor 1
- DTC P1154: Ho2S Transition Time Ratio - Bank 2, Sensor 1
- DTC P1220: Throttle Position Sensor 2 Voltage Out Of Range
- DTC P1221: Throttle Position Sensor 1 & 2 Disagree
- DTC P1271: Accelerator Pedal Position Sensor 1 & 2 Signals Shorted Together
- DTC P1272: Accelerator Pedal Position Sensor 1 & 3 Signals Shorted Together
- DTC P1273: Accelerator Pedal Position Sensor 2 & 3 Signals Shorted Together
- DTC P1275: Accelerator Pedal Position Sensor 1 Signal Out Of Range
- DTC P1276: Accelerator Pedal Position Sensor 1 Disagrees With Sensors 2 & 3
- DTC P1280: Accelerator Pedal Position Sensor 2 Signal Out Of Range
- DTC P1281: Accelerator Pedal Position Sensor 2 Disagrees With Sensors 1 & 3
- DTC P1285: Accelerator Pedal Position Sensor 3 Signal Out Of Range
- DTC P1286: Accelerator Pedal Position Sensor 3 Disagrees With Sensors 1 & 2
- DTC P1336: Crankshaft Position System Variation Not Learned
- DTC P1351: Pcm Detects Open In Ignition Control Circuit
- DTC P1352: Pcm Detects Open In Ignition Control Circuit
- DTC P1361: Pcm Does Not Monitor Ignition Control Pulses
- DTC P1362: Pcm Detects Short To Voltage In Ignition Control Timing Signal Circuit
- DTC P1374: Crankshaft Position Sensor 3X Reference Circuit Malfunction
- DTC P1380: Misfire Detected - Rough Road Data Not Available
- DTC P1381: Misfire Detected - No Communication With Brake Control Module
- DTC P1404: EGR Closed Position Performance
- DTC P1441: EVAP System Flow During Non-Purge
- DTC P1514: Actual MAF & Speed Density Is Greater Than Expected
- DTC P1515: Commanded & Actual Throttle Position Mismatch
- DTC P1516: Commanded & Actual Throttle Position Malfunction
- DTC P1517: Throttle Actuator Control Module Internal Malfunction
- DTC P1518: Loss Of Communication Between Pcm & TAC Module
- DTC P1519: Throttle Position Sensor 1 Out Of Range
- DTC P1523: Commanded & Actual Throttle Position Mismatch
- DTC P1546: A/C Clutch Feedback Circuit Low Voltage
- DTC P1635: 5-Volt Reference 1 Circuit
- DTC P1639: 5-Volt Reference 2 Circuit