Circuit/System Verification

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON.
Verify that DTC C0277 or C0890 is not set.
- If either DTC is set
  Refer to DTC C0277 or C0890 .
- 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.
- If a condition is not found
Verify the scan tool Electronic Brake Control Module BPP Signal parameter changes between Applied and Released while applying and releasing the brake pedal.
- If the parameter does not change between Applied and Released
  Refer to Symptoms - Lighting .
- If the parameter changes between Applied and Released
All OK, refer to Diagnostic Aids.