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. Pull the front wiper/washer switch lever.
    â€¢ The front washer pump operates.
    â€¢ The wipers operate at LOW speed.
    â€¢  Washers Inoperative

2

Release the wiper/washer switch.

    â€¢ The front washer pump stops.
    â€¢ The wipers complete the cycle and return to the PARK position.

Wipers Blades Do Not Park

3

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

The wipers operate at LOW speed.

Wipers High Mode Operates with Switch in Low

4

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

The wipers operate at HIGH speed.

    â€¢  Wipers High Mode Inoperative

5

Move the front wiper/washer lever to the INT position.

The wipers sweep once every 6 seconds.

Wipers Delay Mode Inoperative

6

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

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

    â€¢  Wipers Blades Do Not Park
    â€¢  Wipers Always On

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