GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the ON position.
  2. Press and hold the rear wiper/washer switch.
  1. The rear washer pump operates.
  2. The rear wiper operates.
    •  Rear Wiper Inoperative

2

Release the rear washer switch.

The following components stop in the PARK position:

  1. The washer pump
  2. The rear wiper
    •  Rear Wiper Always On

3

Press the rear wiper switch to the ON position.

The rear wiper operates.

Rear Wiper Inoperative

4

Press the rear wiper switch to the OFF position.

The rear wiper completes the cycle and returns to the PARK position.

    •  Rear Wiper Always On

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