Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Code Charts
- ECM Location
- Trouble Code Identification
- Diagnostic Circuit Check
- Chart A-1 - No Check Engine Light
- Chart A-2 - No ALDL Data Or Will Not Flash Code 12 (Check Engine Light On Steady)
- Code 13 (SOHC) - O2 Sensor (Non-Heated Sensor) Open/Shorted Circuit
- Code 13 (DOHC) - O2 Sensor (Heated Sensor) Open/Shorted Circuit
- Code 14A - Cts Circuit (High Temperature Indicated)
- Code 14B - Cts Circuit (Low Temperature Indicated)
- Code 21A - TPS Circuit (Signal Voltage High)
- Code 21B - TPS Circuit (Signal Voltage Low)
- Code 23A - Manifold Air Temperature (Mat) Sensor Circuit (Low Temperature Indicated)
- Code 23B - Manifold Air Temperature (Mat) Sensor Circuit (High Temperature Indicated)
- Code 24 - VSS Circuit
- Code 32 - Exhaust Gas RECIRCULATION (EGR) Circuit
- Code 33A - Map Sensor (Signal Voltage High - Low Vacuum)
- Code 33B - Map Sensor (Signal Voltage Low - High Vacuum)
- Code 42 - Est (Electronic Spark Timing)
- Code 44 (SOHC) - O2 Sensor Lean Fuel Mixture (Non-Heated Sensor)
- Code 44 (DOHC) - O2 Sensor Lean Fuel Mixture (Heated Sensor)
- Code 45 (SOHC) - O2 Sensor Rich Fuel Mixture (Non-Heated Sensor)
- Code 45 (DOHC) - O2 Sensor Rich Fuel Mixture (Heated Sensor)
- Code 51 - ECM Failure Or EEPROM Failure
- Summary