Engine Controls - Tests W/Codes - Diesel
- Introduction
- Self-Diagnostic System
- Diagnostic Charts
- Notes
- Diagnostic Circuit Check
- Service Engine Soon Light Inoperative
- ECM Check, SVC Soon Light On Steady Or Won't Flash Code 12
- EPR Solenoid Electrical Check
- EPR Vacuum Circuit Check
- Code 12, No Reference Pulse
- Code 14, Coolant Temperature Sensor-Signal Voltage Low
- Code 15, Coolant Temperature Sensor-Signal Voltage High
- Code 21, Throttle Position Sensor - Signal Voltage High
- Code 22, Throttle Position Sensor Signal Voltage Low
- Code 23, Throttle Position Sensor MISADJUSTED
- Code 24, Vehicle Speed Sensor Circuit
- Code 31, Manifold Absolute Pressure Sensor Signal Voltage Low
- Code 32, EGR Circuit Loop Error
- Code 33 Manifold Absolute Pressure Sensor Signal Voltage High
- Code 51, Prom Problem
- Code 52, ECM Fault
- Code 53, Voltage Reference Overload