Circuit/System Description

The parking brake function is integrated into the Electronic Brake Control Module. The Electronic Brake Control Module contains the logic for applying and releasing the parking brake when commanded by the Park Brake Switch. The Electronic Brake Control Module will perform diagnostics on the Park Brake Switch and its wiring harness to verify it is functioning properly.

The Park Brake Switch diagnostic checks for failure conditions in the Park Brake Switch and associated wiring into the Electronic Brake Control Module.