GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Wiper/Washer System Check performed?

--

Go to Step 2

Go to Wiper/Washer System Check

2

  1. Turn the ignition switch to RUN.
  2. Set the wiper switch to OFF.
  3. Disconnect the wiper/washer switch connector.

Do the wipers park properly?

--

Go to Step 3

Go to Step 4

3

Replace the wiper/washer switch. Refer to Multifunction Turn Signal Lever Replacement in Steering.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

4

Measure the voltage from the wiper/washer switch (vehicle side) connector terminal E to ground using a DMM.

Is the measurement less than 1.0 V (approx. 0 V)?

1.0 V

Go to Step 8

Go to Step 5

5

  1. Reconnect the wiper/washer switch connector.
  2. Disconnect the wiper motor connector.
  3. Measure the voltage from wiper motor connector terminal D to ground using a DMM.

Is the voltage less than 1.0 V (approx. 0 V)?

1.0 V

Go to Step 6

Go to Step 7

6

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

7

Repair the short circuit condition to battery in CKT 113.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

8

Measure the voltage from the wiper/washer switch connector (vehicle side) terminal D to ground using a DMM.

Is the measurement less than 1.0 V (approx. 0 V)?

1.0 V

Go to Step 9

Go to Step 10

9

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

10

  1. Reconnect the wiper/washer switch connector.
  2. Disconnect the wiper motor connector.
  3. Measure the voltage from the wiper motor connector terminal E to ground using a DMM.

Is the measurement less than 1.0 V (approx. 0 V)?

1.0 V

Go to Step 11

Go to Step 12

11

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

12

Repair the short circuit condition to battery in CKT 112.

Is the repair complete?

--

Go to Wiper/Washer System Check

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