Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Diagnostic Circuit Check
- Chart A-1, Won't Flash Code 12 No Check Engine Light
- Chart A-2, No ALDL Data Or Won't Flash Code 12 Check Engine Light On At All Times
- Code 13, Oxygen Sensor Circuit (Non-Heated O2 Sensor Only) Open Or Grounded Circuit
- Code 14A, Coolant Temperature Sensor (Cts) Circuit High Temperature Indicated
- Code 14B, Coolant Temperature Sensor (Cts) Circuit Low Temperature Indicated
- Code 21A, Throttle Position Sensor Circuit
- Code 21B, Throttle Position Sensor Circuit
- Code 23A, Manifold Air Temperature (Mat) Sensor Circuit Low Temperature Indicated
- Code 23B, Manifold Air Temperature (Mat) Sensor Circuit High Temperature Indicated
- Code 24, Vehicle Speed Sensor Circuit
- Code 33A, Manifold Absolute Pressure (Map) Sensor Circuit Signal Voltage High-Low Vacuum
- Code 33B, Manifold Absolute Pressure (Map) Sensor Circuit Signal Voltage Low-High Vacuum
- Code 42, Electronic Spark Timing (Est)
- Code 44, Oxygen Sensor Circuit Lean Exhaust Indicated (VIN 5)
- Code 44, Oxygen Sensor Circuit Lean Exhaust Indicated VIN 6)
- Code 45, Oxygen Sensor Circuit Rich Exhaust Indicated
- Code 51, ECM Failure ECM Failed Or Prom Failure
- Summary