GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Wiper/Washer Schematics

DEFINITION: Delay wipers are inoperative, low, and mist may be inoperative. High speed wipers operate but may not park.

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 through all the switch positions.

Do the windshield wipers operate normal in all modes?

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

Go to Step 3

3

  1. Disconnect the multifunction switch connector C2.
  2. Connect a fused jumper wire from the low speed control circuit terminal in the harness connector to ground.

Do the windshield wipers operate at low speed?

Go to Step 6

Go to Step 4

4

Test and repair the low speed control circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs or Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 5

5

Replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement .

Is the repair complete?

Go to Step 7

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6

Replace the multifunction switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle in Steering Wheel and Column-Tilt.

Is the repair complete?

Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3