Circuit/System Verification
WARNING: This page is about a different car, the 2013 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Verify the scan tool Brake Pedal Applied parameter changes between Active and Inactive while pressing and releasing the brake pedal.
- If the parameter does not change
Refer to Brake Pedal Position Sensor Malfunction .
- If the parameter changes
- If the parameter does not change
- Verify the left brake lamp turns ON and OFF when commanding the Left Rear Turn Signal/Brake Lamp ON and OFF with a scan tool.
- If the left brake lamp does not turn ON and OFF
Refer to Stop Lamps Malfunction .
- If the left brake lamp turns ON and OFF
- If the left brake lamp does not turn ON and OFF
- Verify the right brake lamp turns ON and OFF when commanding the Right Rear Turn Signal/Brake Lamp ON and OFF with a scan tool.
- If the right brake lamp does not turn ON and OFF
Refer to Stop Lamps Malfunction .
- If the right brake lamp turns ON and OFF
- If the right brake lamp does not turn ON and OFF
- Verify the center high mounted stop lamp turns ON and OFF when commanding the Center Brake Lamp ON and OFF with a scan tool.
- If the center high mounted stop does not turn ON and OFF
Refer to Center High Mount Stop Lamp Malfunction .
- If the center high mounted stop turns ON and OFF
- If the center high mounted stop does not turn ON and OFF
- All OK.