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. Leave the windshield wiper/washer switch in the OFF position.
  3. Pull the windshield wiper/washer switch for 2 to 4 seconds and release.
    • Wipers operate at low speed.
    • Washer sprays windshield as long as washer switch is held in the ON position.
    • After releasing switch, washer stops and wipers return to park position after 1 to 4 sweeps.
    •  Washers Inoperative
    •  Washers Always On

2

Move the windshield wiper/washer switch to the LO position.

Wipers run continuously at low speed.

3

Move the windshield wiper/washer switch to the HI position.

Wipers run continuously at high speed.

4

Move the windshield wiper/washer switch to the OFF position.

Wipers return to the park position at low speed.

    •  Wipers Always On

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