GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections?

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Go to Step 2

Go to Rear Wiper/Washer System Description and Operation

2

  1. Turn ON the ignition, with the engine OFF.
  2. Operate the rear wiper/washer switch in all positions.

Does the wiper operate?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the rear wiper/washer switch connector C1.
  2. Turn ON the ignition switch, with the engine off.

Does the wiper operate?

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Go to Step 5

Go to Step 4

4

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 7

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5

Inspect for a short to voltage in rear window wiper swicthsignal circuit and the rear window washer pump control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 7

Go to Step 6

6

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

Did you complete the replacement?

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Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3