GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 1999 🢒 Catera 🢒 Body and Accessories 🢒 Wipers/Washer Systems 🢒 Wiper/Washer System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Turn the ignition switch to the ON position.

Turn the windshield wiper switch to the HIGH position.

The windshield wipers run continuously at high speed.

The windshield wipers do not operate at high speed, refer to Wipers High Mode Inoperative .

2

Turn the windshield wiper switch to the LOW position.

The windshield wipers run continuously at low speed.
    • The windshield wipers do not run at low speed.
    • The windshield wipers only operate at high speed.
    • If the windshield wipers operate only at high speed refer to Wipers Low Mode Inoperative, High Mode Operates .

3
  1. Turn the windshield wiper switch to the INTERVAL position.
  2. Rotate the interval switch through its entire range.

The windshield wipers make one complete cycle and then delay from 0 to 25 seconds before repeating the cycle. The delay depends on the position of the interval switch.
    • If windshield wipers continue to operate without any delay. Go to Step 4
    • If the windshield wipers are inoperative in the intermittent mode, refer to Wipers Delay Mode Inoperative .

4

Turn the windshield wiper switch to the OFF position and observe wiper operation.

The windshield wipers return to the PARK position.
    • The windshield wipers operate continuously with the wipers switch in the OFF position. Refer to Wipers Always On .
    • The windshield washer pump and wipers operate continuously. Refer to Washers Always On
    • If the windshield wiper delay was not adjustable in Step 3 of the system check, and the windshield wipers return to the Park position refer to Wipers Delay Mode Inoperative .

5
  1. Turn the ignition switch to the OFF position.
  2. With the windshield wiper switch in the OFF position, turn the ignition switch to the ON position.

The windshield wipers do not operate when the ignition switch is turned to the ON position.

The windshield wipers cycle one time when the ignition is turned ON and then return to the park position. Refer to Wipers Always On .

6
  1. Turn the ignition switch to the ON position.
  2. Pull the windshield wiper switch lever to the MIST position.
  1. The windshield washer nozzles spray for approximately 2.5 seconds.
  2. The windshield wipers run at low speed for approximately 6 seconds.
  3. The windshield wipers return to the park position.
    • The windshield washer nozzles do not spray.
    • The windshield wipers do not run at any speed.
    • If the windshield washer pump and the windshield wipers are inoperative refer to Wipers Mist Mode Inoperative .
    • If the windshield washer heater nozzles are inoperative refer to Washers Inoperative .
    • If the wipers operate and the washer pump does not operate refer to Washers Inoperative .

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