GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Wiper/Washer Rear System Check?

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Go to Step 2

Go to Wiper/Washer Rear System Check

2

  1. Disconnect the rear wiper/washer switch connector C1.
  2. Turn the ignition switch to RUN.

Does the wiper operate?

--

Go to Step 4

Go to Step 3

3

Replace the rear wiper/washer switch. Refer to Multifunction Switch Assembly Replacement - Instrument Panel in Lighting Systems.

Did you complete the replacement?

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Go to Step 6

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4

Inspect for a short to voltage in CKT 391 or CKT 392. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 6

Go to Step 5

5

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

Did you complete the replacement?

--

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Wiper/Washer Rear System Check