GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Washer/Wiper Rear System Check?

--

Go to Step 2

Go to Wiper/Washer Rear System Check

2

  1. Place the ignition switch in the RUN position.
  2. Place the rear window wiper/washer switch in the OFF position.
  3. Disconnect the rear window wiper/washer module.
  4. Connect a test lampJ 35616-200 from the rear window wiper/washer module CKT 391 (GRY) cavity B to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Disconnect the rear window wiper/washer switch.

Does the rear wiper continue to operate?

--

Go to Step 5

Go to Step 6

4

Replace the rear window wiper/washer module Liftgate Wiper Motor Replacement Windshield Wiper System Module Replacement .

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

5

Repair the short to voltage in CKT 391 (GRY) between the rear window wiper/washer module and the rear window wiper/washer switch.

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

--

6

Replace the rear window wiper/washer switch Accessory Switch Replacement .

Is the repair complete?

--

Go to Wiper/Washer Rear System Check

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