Circuit/System Verification

Verify the park brake is released and the brake fluid is at or above the proper level.
- If low, refer to Brake Fluid Loss .
Command the IPC lamp test with a scan tool, the warning indicator should turn ON.
- If the red brake warning indicator does not illuminate, replace the IPC.
Ignition ON, observe the scan tool BCM Park Brake Switch parameter while applying and releasing the park brake. The parameter should cycle between Applied and Released.
- If the parameter does not cycle between the specified values, refer to Circuit/System Testing .
Observe the scan tool EBCM Brake Fluid Level parameter. The reading should be OK.
- If not the specified value, refer to Circuit/System Testing .