GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

    • Turn the ignition switch to the ON position.
    • Pull the front wiper/washer switch lever.

The front washer pump operates.

Washers Inoperative

2

Move the front wiper/washer switch lever through all the positions, pausing in each position.

The wipers increase speed as the switch is moved toward the HI position.

Wipers All Modes Inoperative

3

Move the front wiper/washer switch lever to the HI position.

The wipers operate at HIGH speed.

Wipers High Mode Inoperative

4

Move the front wiper/washer switch lever to the OFF position.

The wipers complete the cycle and return to the PARK position.

    •  Wipers Always On

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