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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 >> Component Testing

Component Testing

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.

Park Brake Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the park brake switch.
  2. Test for infinite resistance between the signal terminal B and ground with the park brake released.
    • If less than the specified value, replace the park brake switch.
  3. Test for less than 1 ohm between the signal terminal B and ground with the park brake applied.
    • If greater than the specified range, replace the park brake switch.

Brake Fluid Level Switch Malfunction

  1. Ignition OFF, disconnect the harness connector at the brake fluid level switch.
  2. Test for infinite resistance between the ground terminal A and the signal terminal B.
    • If less than the specified value, replace the brake fluid level switch.
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