GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the rear wiper/washer system check performed?

--

Go to Step 2

Go to Wiper/Washer Rear System Check

2

  1. Disconnect the junction block connector C8.
  2. Turn the ignition switch to the ON position.

Does the rear wiper motor operate?

--

Go to Step 3

Go to Step 4

3

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

Does the rear wiper motor operate?

--

Go to Step 6

Go to Step 5

4

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

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

5

Test for a short to voltage in the BLU/GRN wire between the rear wiper/washer switch and rear wiper motor.

Was a short to voltage found?

--

Go to Step 8

Go to Step 7

6

Repair a 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

--

7

Replace the rear wiper/washer switch. Refer to Rear Window Wiper and Washer Switch Replacement .

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

8

Repair the short. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

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