GM Service Manual Online
For 1990-2009 cars only

Action

Normal Results

Ignition switch must be in the RUN position for the entire system check.

Pull the wiper lever toward you and release.

Windshield washer fluid will spray from the nozzles, and wipers will continue to wipe 2 or 3 times after the spray has stopped.

Move windshield wiper switch to the INT (intermittent) position, and rotate the INT switch to each position and let the wipers cycle.

    • Position 3 - One wipe per approximately 2 seconds.
    • Position 2 - One wipe per approximately 7 seconds.
    • Position 1 - One wipe per approximately 12 seconds.

Move INT switch to position 2, pull wiper lever toward you for 1-2 seconds.

Windshield washer fluid should spray the entire time the wiper lever is held back. Wipers should run at low speed, and continue to wipe two or three times after the spray has stopped.

Move windshield wiper switch to LOW (LO) position.

Windshield wiper will run at low speed.

Move windshield wiper switch to HIGH (HI) position.

Windshield wiper will run at high speed.

Move windshield wiper switch to OFF position.

Windshield wiper will run at slow speed, then park at the bottom of the windshield.

Move windshield wiper switch to the mist position.

Windshield wiper will wipe one time at slow speed and then return to park.