Circuit/System Verification

Ignition ON.
Verify that DTC C0277 or C0890 is not set.
- If either DTC is set
  Refer to DTC C0277 or C0890 .
- Go to next step: If the DTC is not set
Verify the B22 Brake Pedal Position Sensor or the brake pedal are not binding causing residual brake pressure to be detected.
- If a condition is found
  Repair or replace the appropriate component.
- Go to next step: If a condition is not found
Verify the scan tool Electronic Brake Control Module Brake Pedal Position Sensor parameter changes between Inactive and Active while applying and releasing the brake pedal.
- If the parameter does not change
  Refer to Symptoms - Lighting .
- Go to next step: If the parameter changes
All OK, refer to Diagnostic Aids.