Ignition G Control Signal Circuit/Open

Common symptoms

What you'll notice

• Check the ignition coil for any signs of damage or wear and replace if necessary.
• Inspect the ignition control module for any faults or malfunctions and replace if needed.
• Verify the connection between the ignition control module and the engine control unit and ensure it is secure.
• Check for any loose or corroded wiring connections related to the ignition system and repair as required.
• If all else fails, consider replacing the engine control unit as a last resort solution.

Common causes

Most likely first

1. Faulty ignition coil
2. Malfunctioning ignition control module
3. Loose or damaged wiring connections in the ignition G control signal circuit
4. Defective ignition switch
5. Faulty engine control unit (ECU)

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Loss of power or acceleration
3. Engine stalling or not starting
4. Increased fuel consumption
5. Check Engine Light (CEL) illuminates