Intermittent Malfunction Indicator Light

The following conditions may cause intermittent MIL operation with no DTCs stored:

• A defective relay, control module driven solenoid, or a switch that causes electrical system interference. Usually the symptom will occur when the faulty component is operating.
• Any Ignition Control (IC) wires routed near the generator or near secondary ignition system wires and components.
• An ignition system secondary voltage that is arcing and shorting to ground.
• Any poor ignition control circuit or ignition module grounds.
• A MIL control circuit that is intermittently shorting to ground.
• Any faulty diodes in the generator or charging system circuits.
• Improper installation of add-on electrical devices. These can include alarm systems, 2-way radios, lighting systems, electrical motors.