GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Place the rear wiper/washer switch in the DELAY position.

Wiper makes one complete sweep and pauses before making the next sweep

Refer to Wipers Delay Mode Inoperative

2

Place the rear wiper/washer switch in the ON position.

The rear wiper operates in full continuous sweeps.

Refer to Rear Wiper Inoperative

3

Depress the rear washer switch for 2 to 4 seconds and release.

The rear washer sprays as long as the rear washer switch is depressed.

Refer to Rear Washer Inoperative

4

Place the rear wiper/washer switch in the OFF position.

The rear wiper returns to the PARK position.

Refer to Rear Wiper Always On

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.