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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 405 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0724: Brake Switch Circuit - High Input >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 2

    Disconnecting the brake switch connector, and observing a status change, isolates the brake switch as the source of the DTC.

  2. 3

    This step inspects the signal circuit for a short to voltage, if the brake switch status on the scan tool did not change in step 2.

  3. 4

    If the brake switch is properly adjusted, then the brake switch must be replaced.

  4. 5

    Replace the PCM only after you have completed the preceding diagnostic steps.

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