GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Wiper/Washer System Check?

--

Go to Step 2

Go to Wiper/Washer Rear System Check

2

  1. Turn ignition switch to ON.
  2. Disconnect the rear wiper/washer switch connector.

Does the rear motor continue to operate?

--

Go to Step 3

Go to Step 4

3

Repair the short to voltage in the ORN wire between the rear wiper/washer switch and the rear wiper motor. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

4

  1. Connect a J 39200 Digital Multimeter (DMM) across rear wiper/washer switch cavities 1-4.
  2. Measure the resistance.

Is the resistance less than specified value?

Go to Step 6

Go to Step 5

5

Replace the rear wiper motor. Refer to Rear Window Wiper Motor Replacement .

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

6

Replace the rear wiper/washer switch. Windshield Wiper and Washer Switch Replacement .

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--