GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

  1. Turn the ignition to OFF.
  2. Disconnect the wiper/washer switch connector.
  3. Turn the wiper switch to DELAY.
  4. Measure the resistance through the wiper/washer switch connector, terminal A3 to terminal B9.
  5. Move the wiper switch through the entire delay range, one notch at a time.

Does the resistance vary within the specified values?

39 Kohms to 680 Kohms

Go to Step 4

Go to Step 3

3

Replace the wiper/washer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column - Tilt.

Did you complete the replacement?

--

Go to Step 7

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4

  1. Reconnect the wiper/washer switch connector.
  2. Disconnect the wiper motor connector.
  3. Turn the ignition switch to RUN.
  4. Turn the wiper switch to DELAY.
  5. Measure the voltage from the wiper motor connector, terminal E, to ground.

Does the voltage measure within the specified values?

10.5-15 V

Go to Step 6

Go to Step 5

5

Repair the open in CKT 112. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 7

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6

Replace the wiper motor cover. Refer to Wiper Motor Cover Replacement .

Did you complete the replacement?

--

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 2