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

1

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

Go to Step 2

Go to Symptoms - Wiper/Washer Systems

2

  1. Turn the ignition ON.
  2. Turn the windshield wiper/washer switch OFF.

Do the windshield wipers remain in the park position?

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

Go to Step 3

3

  1. Turn the ignition OFF.
  2. Disconnect the inline harness connector C211.
  3. Remove the connector terminal row E from the steering column harness connector half.
  4. Connect the inline harness connector C211.
  5. Turn the ignition ON.

Are the windshield wipers always on?

Go to Step 4

Go to Step 5

4

Test the windshield wiper switch signal 2 circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 6

5

Inspect for poor connections at the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 7

6

Inspect for poor connections at the windshield wiper motor module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 9

Go to Step 8

7

Replace the windshield wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement .

Is the repair complete?

Go to Step 9

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8

Replace the windshield wiper motor module. Refer to Windshield Wiper System Module Replacement .

Is the repair complete?

Go to Step 9

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9

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3