Ignition G Control Signal Circuit High

Common symptoms

What you'll notice

• Check and inspect the ignition control module for any visible damage or signs of failure.
• Test the ignition coil for proper functioning and replace if necessary.
• Inspect and clean the spark plugs, ensuring they are in good condition and properly gapped.
• Verify the wiring and connections related to the ignition system, repairing any loose or damaged connections.
• If all else fails, consider replacing the engine control module (ECM) as a last resort.

Common causes

Most likely first

1. Faulty ignition coil
2. Malfunctioning ignition control module
3. Damaged ignition control module wiring
4. Defective ignition switch
5. Faulty engine control module (ECM)

How to diagnose & fix

Work through it in order

1. Engine misfire or hesitation
2. Difficulty starting the engine
3. Reduced engine power
4. Car or motorcycle stalling or stalling intermittently
5. Decreased fuel efficiency