Ignition I Control Signal Circuit Low

Common symptoms

What you'll notice

• Check and clean the ignition control sensor to ensure it is functioning properly.
• Inspect and repair any damaged or worn wiring or connections related to the ignition control signal circuit.
• Check the ignition control module for any faults or malfunctions and replace if necessary.
• Verify that the engine control unit (ECU) is functioning correctly and reprogram or replace if needed.
• In rare cases, the issue may be caused by a faulty ignition switch. Inspect and replace if necessary.

Common causes

Most likely first

1. Faulty ignition coil or spark plug
2. Faulty ignition control module or ignition control unit
3. Loose or corroded electrical connections in the ignition system
4. Faulty ignition switch or key cylinder
5. Damaged or worn
6. out ignition wiring harness

How to diagnose & fix

Work through it in order

1. Engine misfires or runs rough
2. Decreased engine performance or power
3. Difficulty starting the engine
4. Poor fuel efficiency
5. Illuminated check engine light

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