GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The rear window washer is always ON and the rear window wiper operates normally.

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Turn ON the ignition.

Is the rear washer always ON?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections

3

  1. Disconnect the rear washer relay.
  2. Turn ON the ignition.

Is the rear washer always ON?

Go to Step 5

Go to Step 4

4

Inspect for poor connections at the rear washer relay. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 7

Go to Step 6

5

Repair the rear washer pump control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Is the repair complete?

Go to Step 7

--

6

Replace the rear washer relay.

Did you complete the replacement?

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3