Ignition C Control Signal Circuit High

Common symptoms

What you'll notice

• Check the ignition control module for any damage or malfunctioning
• Inspect and test the ignition coil for proper operation
• Verify the wiring and connections in the ignition control circuit to ensure they are secure and free from any damage
• Check the power supply to the ignition control module and ensure it is functioning correctly
• If all else fails, consider replacing the ignition control module as a last resort solution.

Common causes

Most likely first

1. Faulty ignition coil
2. Malfunctioning ignition control module
3. Wiring or connection issue in the ignition system
4. Faulty ignition switch
5. Defective engine control module

How to diagnose & fix

Work through it in order

1. Engine misfire or hesitation
2. Reduced fuel efficiency
3. Difficulty starting the vehicle
4. Engine stalling or rough idling
5. Illuminated Check Engine Light