GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Turn the ignition switch to the ACCY or the RUN position. Hold the washer switch in the ON position for 1 to 2 seconds.

The washer sprays the windshield until the switch is released. The wipers run at a low speed and continue to run for approximately six seconds after the washer cycle is completed. Then the wipers return to the park position.

The washer does not spray the windshield or complete the washer cycle.

2

Turn the wiper switch to the INT position. Activate the intermittent wiper function through the entire range.

The wipers make one complete sweep, then pause for 0 to 25 seconds before making the next sweep.

The wipers do not make one complete sweep, then pause for 0 to 25 seconds before making the next sweep.

3

Turn the wiper switch to the INT position. Push the washer switch to the ON position for 1 to 2 seconds.

The washer sprays as long as the washer switch is held in the ON position. The wipers run at a low speed during the spray period and continue for approximately six seconds after the spray cycle. The wipers return to pulse mode.

The washer does not spray when the washer switch is held in the ON position. The wipers will not run at all. Refer to Wipers All Modes and Washer Inoperative .

4

Turn the wiper switch to the LOW position.

The wipers run continuously at a low speed.

The wipers do not run. Refer to Wipers All Modes and Washer Inoperative .

5

Turn the wiper switch to the HI position.

The wipers run at a faster speed.

The wipers do not run. Refer to Wipers All Modes and Washer Inoperative .

6

Turn the wiper switch to the OFF position.

The wipers return to the park position at a low speed.

The wipers do not run. Refer to Wipers All Modes and Washer Inoperative .

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