GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to ACCY or RUN.
  2. Press the washer switch on for 1-2 seconds.

The washer sprays the windshield until the switch is released. The wipers run at low speed and continue to run for approximately 6 seconds, then return to the park position.

    •  Washers Inoperative .
    •  Washers Always On .

2

  1. Turn the wiper switch to DELAY (pulse mode).
  2. Activate the delay time by turning the wiper switch through the delay range.

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

Wipers Delay Mode Inoperative .

3

  1. Turn the wiper switch to DELAY.
  2. Press the washer switch in the ON position for 1-2 seconds.

The washer sprays the windshield as long as the washer switch is held in the ON position. The wipers run at low speed during the spray period and continue for approximately 6 seconds after the spray cycle. The wipers return to the pulse mode.

    •  Washers Inoperative .
    •  Washers Always On .

4

Turn the wiper switch to LO.

The wipers run continuously at low speed.

5

Turn the wiper switch to HI.

The wipers run continuously at high speed.

6

Turn the wiper switch to OFF.

The wipers return to the park position at low speed.

    •  Wipers Always On .

7

Turn the wiper switch to MIST, then release.

The wipers make one complete sweep at low speed, then return to the park position. If the switch is held in the MIST position, the wipers run continuously at low speed until the switch is released.