Circuit/System Verification

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

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 display 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/Active and Released/Inactive.
- If the parameter does not cycle between the specified values, refer to Park Brake Switch Malfunction in Circuit/System Testing .
Observe the scan tool BCM Brake Fluid Level Sensor parameter. The reading should be OK.
- If not the specified value, refer to Brake Fluid Level Switch Malfunction in Circuit/System Testing .