Test Description

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

This step tests for continuity through the 24KΩresistor in the windshield wiper/washer switch. The connector behind the instrument panel knee bolster is suitable for performing this step.
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.

Fig 1: Wipers Inoperative - One Or More Modes (1 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 2: Wipers Inoperative - One Or More Modes (2 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 3: Washers Inoperative - Rear (1 Of 2)
Courtesy of GENERAL MOTORS CORP.

Fig 4: Washers Inoperative - Rear (2 Of 2)
Courtesy of GENERAL MOTORS CORP.