Engine Control Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Powertrain Control Module Location
- Programming
- Summary
- Fuel System Pressure Release
- Diagnostic Trouble Code Definitions
- Connector Identification
- Diagnostic Tests
- Notes
- DTC P0107: Map Sensor Voltage Too Low
- DTC P0108: Map Sensor Voltage Too High
- 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: 1/1 O2 Sensor Shorted To Ground
- DTC P0132: 1/1 O2 Sensor Shorted To Voltage
- DTC P0133: 1/1 O2 Sensor Slow Response
- DTC P0135: 1/1 O2 Sensor Heater Failure
- DTC P0137 1/2 O2 Sensor Shorted To Ground
- DTC P0138: 1/2 O2 Sensor Shorted To Voltage
- DTC P0139: 1/2 O2 Sensor Slow Response
- DTC P0141: 1/2 O2 Sensor Heater Failure
- DTC P0171 1/1 Fuel System Lean
- DTC P0172 1/1 Fuel System Rich
- DTC P0182: CNG Temp Sensor Low
- DTC P0183: CNG Temp Sensor High
- DTC P0201: Injector #1 Control Circuit
- DTC P0202: Injector #2 Control Circuit
- DTC P0203: Injector #3 Control Circuit
- DTC P0204: Injector #4 Control Circuit
- DTC P0205: Injector #5 Control Circuit
- DTC P0206: Injector #6 Control Circuit
- DTC P0207: Injector #7 Control Circuit
- DTC P0208: Injector #8 Control Circuit
- DTC P0300-0308: 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 P0420: 1/1 Catalytic Converter Efficiency
- DTC P0441: EVAP Purge Flow Monitor
- DTC P0442, P0455 & DTC P0456: EVAP Leak Monitor Medium/Large/Small Leak Detected
- DTC P0443: EVAP Purge Solenoid Circuit
- DTC P0460 & DTC P0461 : Fuel Level Unit No Change Over Miles/Time
- 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 P0601: Pcm Internal Controller Failure
- DTC P0622: Generator Field Not Switching Properly
- DTC P0645: A/C Clutch Relay Circuit
- DTC P1195: 1/1 O2 Sensor Slow During Catalyst Monitor
- DTC P1281: Engine Is Cold Too Long
- DTC P1282: Fuel Pump Relay Control Circuit
- DTC P1292: CNG Pressure Sensor High
- DTC P1293: CNG Pressure Sensor Low
- 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: Mis-Fire Adaptive Numerator At Limit
- DTC P1486: EVAP Leak Monitor Pinched Hose Found
- 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 P1595: Speed Control Solenoid Circuits
- DTC P1596: Speed Control Switch Always High
- DTC P1597: Speed Control Switch Always Low
- DTC P1682: Charging System Voltage Too Low
- DTC P1683: SPD CTRL PWR Relay; Or S/C 12V Driver Circuit
- DTC P1687: No Cluster Bus Message
- DTC P1696: Pcm Failure EEPROM Write Denied
- Test NTC-1: No Trouble Code Test Menu
- Test NTC-2: No Response From PCI (Sci Only)
- Test NTC-3: Checking Brake Switch
- Test NTC-4: Checking Engine Mechanical Systems
- Test NTC-5: Checking Evaporative Emission System (Gasoline Models)
- Test NTC-6: Checking Fuel Delivery (CNG Models)
- Test NTC-7: Checking Fuel Delivery (Gasoline Models)
- Test NTC-8: Checking Manifold Absolute Pressure (Map) Sensor Calibration
- Test NTC-9: Checking Minimum Idle Air Flow
- Test NTC-10: Checking Engine Coolant Temperature (ECT) Sensor Calibration
- Test NTC-11: Checking Intake Air Temperature (IAT) Sensor
- Test NTC-12: Checking Oil Pressure Sensor
- Test NTC-13: Checking Pcm Power & Ground Circuits
- Test NTC-14: Checking Throttle Position (TP) Sensor Calibration
- Test NTC-15: Checking A/C System
- Test NTC-16: Checking Charging System
- Test NTC-17: Checking Battery Temperature Sensor
- Test NTC-18: Checking Park/Neutral Switch
- Test NS-SEL: No Start Test Selection
- Test NS-1: Engine Cranks But Will Not Start (CNG Models)
- Test NS-2: Engine Cranks But Will Not Start (Gasoline Models)
- Test NS-3: Engine Will Not Crank
- Test NS-4: Engine Does Not Start & Scan Tool Displays No Response
- Test NS-5: Start & Stall Condition
- Test VER-1: Powertrain Verification
- Test VER-2: Road Test Verification
- Test VER-3: Charging System Verification
- Test VER-4: Speed Control Verification
- Test VER-5: OBD-II Monitor Verification
- Test VER-6: Leak Detection Pump (LDP) Verification
- Test VER-7: Fuel/Misfire Verification
- Test VER-8: Transmission Verification