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Test Description

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The number(s) below refer to the step number(s) on the diagnostic table.

  1. 8)  - This step tests for continuity through the 24K Ω resistor in the windshield wiper/washer switch. The connector behind the instrument panel knee bolster is suitable for performing this step.
  2. 9)  - This step tests for continuity through the delay resistors in the windshield wiper/washer switch. The measured resistance will change in sequence from high to low as the delay speed is increased. The connector behind the instrument panel knee bolster is suitable for performing this step.
    3. Fig 1: Wipers Inoperative - One Or More Modes Diagnosis (Steps 1-7)
    G01712523Courtesy of GENERAL MOTORS CORP.
    Fig 2: Wipers Inoperative - One Or More Modes Diagnosis (Steps 8-18)
    G01712524Courtesy of GENERAL MOTORS CORP.
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