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. Set the wiper/washer switch to DELAY.

The wiper makes one complete sweep, then pauses or approximately 5 seconds before making the next sweep. The delay time is preset and not adjustable.

Rear Wiper Inoperative .

2

Set the wiper switch to WASH.

The washer sprays the window as long as the switch is held on WASH. The wipers run continuously while the washer is on.

Rear Washer Inoperative .

3

Set the wiper switch to OFF.

The wiper completes the last sweep, then parks.

Rear Wiper Always On .