Circuit/System Verification
WARNING: This page is about a different car, the 2015 Buick LaCrosse. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON.
- Apply and release brake pedal. Verify the brake stop lamps operate properly.
- If the brake stop lamps do not operate properly
Refer to Symptoms - Lighting .
- If the brake stop lamps operate properly
- If the brake stop lamps do not operate properly
- Verify that DTC C0131 is not set.
- If the DTC is set
- Perform the Brake Pressure Modulator Valve Pressure Sensor Calibration .
- Verify the DTC does not set.
- If the DTC sets, replace the K17 Electronic Brake Control Module with the Brake Pressure Modulator.
- If the DTC does not set
- All OK.
- If the DTC is not set
- All OK.