Engine Control Self-Diagnostics
- Description & Operation
- Introduction
- Trouble Shooting
- Symptom Testing
- Checking Charging System Operation With No DTC'S Present
- Bus (+) & Bus (-) Open
- Bus Bias Too High Or Too Low
- Bus Failure Message - Bus (+) & Bus (-) Shorted Together
- Bus Failure Message - No Termination
- Bus Failure Message - Short To 5 Volts
- Bus Failure Message - Short To Battery
- Bus Failure Message - Short To Ground
- DRBIII(R) Blank Screen
- No Bus Bias
- No Response From Airbag Control Module
- No Response From Electronic Entry Module
- No Response From Pcm (Sci Only)
- No Response From Powertrain Control Module (CCD)
- Not Receiving Bus Messages Correctly
- Checking Evaporative Emission Operation With No DTC'S
- Checking Fuel Delivery
- Checking Map Sensor Operation With No DTC'S
- Checking Minimum Airflow
- Checking Radiator Fan Operation With No DTC'S
- Checking Engine Coolant Temperature Sensor
- Checking Intake Air Temperature
- Checking Pcm Power & Grounds
- Checking Throttle Position Sensor Operation With No DTC'S
- Engine Cranks Does Not Start
- No Crank Condition
- No Response From Pcm With A No Start Condition
- Start & Stall Condition
- Cannot Shift Into 2ND & 3RD Gears
- Cannot Shift Into Reverse
- Diagnostic Trouble Codes
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0031; P0032; P0037; P0038; P0051; P0052: O2 Sensor Heater Circuit Low Or High
- DTC P0071: Ambient Temp Sensor Performance
- DTC P0107: Map Sensor Voltage Too Low
- DTC P0108: Map Sensor Voltage Too High
- DTC P0111: Intake Air Temp Performance
- DTC P0112: Intake Air Temp Sensor Voltage Low
- DTC P0113: Intake Air Temp Sensor Voltage High
- DTC P0117: ECT Sensor Voltage Too Low
- DTC P0118: ECT Sensor Voltage Too High
- DTC P0121: TPS Voltage Does Not Agree With Map
- DTC P0122: Throttle Position Sensor Voltage Low
- DTC P0123: Throttle Position Sensor Voltage High
- DTC P0125: Closed Loop Temp Not Reached
- DTC P0131; P0137; P0151; P0157: O2 Sensor Shorted To Ground
- DTC P0132; P0138; P0152; P0158: O2 Sensor Shorted To Voltage
- DTC P0133; P0139; P0153; P0159: O2 Sensor Slow Response
- DTC P0135; P0141; P0155; P0161: O2 Sensor Heater Failure
- DTC P0136: O2 Sensor Heater Circuit Malfunction
- DTC P0171; P0174: Fuel System Lean
- DTC P0172; P0175: Fuel System Rich
- DTC P0201-P210: Injector #1-10 Control Circuit
- DTC P0300-P0310: Multiple Cylinder Misfire
- DTC P0320: No Crank Reference Signal At Pcm
- DTC P0340: No Cam Signal At Pcm
- DTC P0351: Ignition Coil #1 Primary Circuit
- DTC P0352: Ignition Coil #2 Primary Circuit
- DTC P0353: Ignition Coil #3 Primary Circuit
- DTC P0354: Ignition Coil #4 Primary Circuit
- DTC P0355: Ignition Coil #5 Primary Circuit
- DTC P0356: Ignition Coil #6 Primary Circuit
- DTC P0357: Ignition Coil #7 Primary Circuit
- DTC P0358: Ignition Coil #8 Primary Circuit
- DTC P0420: 1/1 Catalytic Converter Efficiency
- DTC P0432: 2/1 Catalytic Converter Efficiency
- DTC P0441: EVAP Purge Flow Monitor
- DTC P0442; P0455; P0456: EVAP Leak Monitor Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460-P0461: Fuel Level Unit No Change Over Time Or Miles
- DTC P0462: Fuel Level Sending Unit Volts Too Low
- DTC P0463: Fuel Level Sending Unit Volts Too High
- DTC P0500: No Vehicle Speed Sensor Signal
- DTC P0505: Idle Air Control Motor Circuits
- DTC P0522: Oil Pressure Sensor Volts Low
- DTC P0523: Oil Pressure Sensor Volts High
- DTC P0551: Power Steering Switch Failure
- DTC P0601: Pcm Internal Controller Failure
- DTC P0622: Generator Field Not Switching Properly
- DTC P0801: Reverse Gear Lockout Circuit Open Or Shorted
- DTC P1195-P1197: O2 Sensor Slow During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC 1282: Fuel Pump/System Relay Control Circuit
- DTC P1294: Target Idle Not Reached
- DTC P1296: No 5 Volts To Map Sensor
- DTC P1297: No Change In Map From Start To Run
- DTC P1388: Auto Shutdown Relay Control Circuit
- DTC P1389: No ASD Relay Output Voltage At Pcm
- DTC P1391: Intermittent Loss Of CMP Or CKP
- DTC P1398: Misfire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- DTC P1489: High Speed Fan Control Relay Circuit
- DTC P1490: Low Speed Fan Control Relay Circuit
- DTC P1491: Rad Fan Control Relay Circuit
- DTC P1492: Ambient/Batt Temp Sen Volts Too High
- DTC P1493: Ambient/Batt Temp Sen Volts Too Low
- DTC P1494: Leak Detection Pump SW Or Mechanical Fault
- DTC P1495: Leak Detection Pump Solenoid Circuit
- DTC P1594: Charging System Voltage Too High
- DTC P1682: Charging System Voltage Too Low
- DTC P1696: Pcm Failure EEPROM Write Denied
- DTC P1719: Skip Shift Solenoid Circuit Open Or Shorted
- Verification Tests
- Connector PINOUTS & Terminal Identification
- Wiring Diagrams