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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1941 (Hydraulic Brake System) >> Diagnostic Information and Procedures >> Brake Warning Indicator Malfunction >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the park brake is released and the brake fluid is at or above the proper level.
  2. 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.
  3. 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 Park Brake Switch Malfunction below.
  4. Observe the scan tool EBCM Brake Fluid Level Sensor parameter. The reading should be OK.
    • If not the specified value, refer to Brake Fluid Level Switch Malfunction below.
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