Stop Start Mode Lamp Control Circuit

Common symptoms

What you'll notice

• Check and replace any damaged wiring or connectors related to the stop/start mode lamp control circuit
• Inspect and replace the stop/start mode lamp control module if necessary
• Ensure that the stop/start mode lamp control switch is functioning properly and replace if needed
• Clear stored error codes and test the system again

Common causes

Most likely first

1. Faulty stop start mode lamp control module
2. Wiring issue or loose connection in the stop start mode lamp control circuit
3. Problem with the stop start mode lamp itself (e.g., blown bulb)
4. Faulty vehicle sensors or switches related to the stop start mode

How to diagnose & fix

Work through it in order

1. Engine misfires or stalls while in stop
2. start mode
3. Difficulty starting the vehicle
4. Reduced engine power or performance
5. Illuminated check engine light
6. Inability to engage or disengage stop