Engine Controls - Self-Diagnostics
- Introduction
- Self-Diagnostic System
- Self Diagnostic System Check
- PFI System Check
- ECM Connector Identification
- A Charts (System Check)
- A Charts (ECM)
- A Charts (PFI)
- PFI Chart A-1: "Engine Control System Fault" Telltale Inoperative
- PFI Chart A-2: "Service Engine Soon" Telltale On, No Codes Present
- PFI Chart A-3: No Start Or Stall After Start
- PFI Chart A-4A: Static Fuel Pressure Diagnosis
- PFI Chart A-4B: Dynamic Fuel Pressure Diagnosis
- PFI Chart A-5-A: Injector System Diagnosis
- PFI Chart A-5-B: Injector System Diagnosis
- PFI Chart A-5-C: Injector System Diagnosis
- PFI Chart A-6: Right O2 Sensor Not Ready
- PFI Chart A-7: Left O2 Sensor Not Ready
- PFI Chart A-8: Right O2 Sensor Lean
- PFI Chart A-9: Left O2 Sensor Lean
- PFI Chart A-10: Right O Sensor Rich
- PFI Chart A-11: Left O2 Sensor Rich
- PFI Chart A-12: Right O2 Sensor Diagnosis
- PFI Chart A-13: Left O2 Sensor Diagnosis
- B Charts (System Check)
- C Charts (System Check)
- C Charts (PFI)
- D Charts (System Check)
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- ECM DTC EO12: No Distributor Reference Signal
- ECM DTC EO13: Right O2 Sensor Not Ready
- ECM DTC EO14: Shorted Coolant Sensor Circuit
- ECM DTC EO15: Open Coolant Sensor Circuit
- ECM DTC EO16: Charging System Voltage Out Of Range
- ECM DTC EO17: Left O2 Sensor Not Ready
- ECM DTC EO19: Shorted Fuel Pump Circuit
- ECM DTC EO20: Open Fuel Pump Circuit
- ECM DTC EO20-A: Fuel Pump Fuse Blown
- ECM DTC EO21: Shorted Throttle Position Sensor Circuit (Signal Voltage To High)
- ECM DTC EO22: Open TPS Circuit (Signal Voltage Low)
- ECM DTC EO23: Est Circuit Problem
- ECM DTC EO24: Speed Sensor Circuit Problem
- ECM DTC EO26: Shorted Throttle Switch Circuit
- ECM DTC EO27: Open Throttle Switch Circuit
- ECM DTC EO30: ISC Rpm Out Of Range
- ECM DTC EO31: Shorted Map Sensor Circuit
- ECM DTC EO32: Open Map Sensor Circuit
- ECM DTC EO34: Map Signal To High
- ECM DTC EO37: Shorted Mat Sensor Circuit
- ECM DTC EO38: Open Mat Sensor Circuit
- ECM DTC EO39: VCC Engagement Problem
- ECM DTC EO40: Open Power Steering Pressure Circuit
- ECM DTC EO41: No Cam Sensor Signal
- ECM DTC EO42: Left O2 Sensor Lean
- ECM DTC EO43: Left O2 Sensor Rich
- ECM DTC EO44: Right O2 Sensor Lean
- ECM DTC EO45: Right O2 Sensor Rich
- ECM DTC EO46: Left To Right Bank Fueling Imbalance
- ECM DTC EO47: ECM-BCM Data Problem
- ECM DTC EO50: Second Gear Pressure Circuit
- ECM DTC EO51: Mem-Cal Error
- ECM DTC EO52: ECM Memory Reset
- ECM DTC EO53: Distributor Signal Interrupted
- ECM DTC EO55: TPS MISADJUSTED
- ECM DTC EO58: Pass Key Fuel Enable Problem
- ECM DTC EO60: Cruise - Not In Drive
- ECM DTC EO61: Cruise Vent Solenoid Circuit
- ECM DTC EO62: Cruise Vacuum Solenoid Circuit
- ECM DTC EO63: Set Speed/Vehicle Speed Difference Too High
- ECM DTC EO64: Acceleration Too High Cruise Engaged
- ECM DTC EO65: Cruise Servo Sensor Failure
- ECM DTC EO66: Cruise Engine Rpm Too High
- ECM DTC EO67: Cruise Set/Coast Or Resume/ACCEL Switch Shorted
- ECM DTC EO68: Cruise Control Command Problem
- ECM DTC EO69: Traction Control Active In Cruise
- ECM DTC EO74: Mat Signal Interrupt
- ECM DTC EO75: VSS Signal Interrupt
- ECM DTC EO85: Throttle Body Service Required
- ECM DTC EO90: VCC Brake Switch Input Problem
- ECM DTC EO91: Park Neutral Switch Problem
- ECM DTC EO96: Torque Converter Overstress
- ECM DTC EO97: P/N To D/R At High Throttle Angle
- ECM DTC EO98: P/N To D/R In ISC Range Problem
- ECM DTC EO99: Cruise Servo Applied Not In Cruise
- ECM Input EI70: Cruise Control Brake Switch
- ECM Input EI71: VCC Brake Switch
- ECM Input EI72: ISC Throttle Switch
- ECM Input EI79: 2ND Gear Pressure Switch
- ECM Input EI82: Cruise Control On/Off Switch
- ECM Input EI83: Cruise Control Set/Coast Switch
- ECM DTC EI84: Cruise Control Resume/ACCEL Switch