Self-Diagnostic System: Notes

Electronic Control Module (ECM) recognizes faults (open circuits, short circuits, missing signals, or a continuously applied signal voltage) in the following circuits/components.

• EGR Frequency Valve
• EGR Temperature Sensor
• Engine Coolant Temperature Sensor
• Engine Speed (RPM)/Reference Sensor
• Fuel Evaporative (Frequency) Valve
• Hall Effect Sensor
• Idle Air Control/Stabilizer Valve
• Intake Air Temperature Sensor
• Knock Sensor(s)
• Throttle Valve Potentiometer
• Oxygen Sensor