Circuit/System Verification
NOTE:
Diagnose all other brake light DTCs or Symptoms prior to performing this diagnostic procedure.
- Verify that DTC C0277 or C0297 is not set.
- If DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Apply and release the brake pedal. Verify brake lamps operate properly.
- If brake lamps do not operate properly, refer to Symptoms - Lighting .
- Verify the brake pedal position sensor or the brake pedal is not binding causing residual brake pressure to be detected, while the brake lights operate properly.
- If a condition is found, repair or replace the applicable component.
- Replace the brake pressure modulator valve assembly (BPMV). Verify DTC does not reset. If DTC resets, replace the EBCM.