Circuit/System Verification
WARNING: This page is about a different car, the 2010 Pontiac G6. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, observe the scan tool EBCM BPP parameter while applying and releasing the brake pedal. The reading should change between Applied and Released.
- Verify that DTC C0277 or C0278 is not set.
- If either DTC are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Replace the EBCM.