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.

Does the wiper motor park?

--

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 connector (vehicle side) terminal E to ground using a DMM.

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

1.0 V

Go to Step 5

Go to Step 9

5

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 6

Go to Step 12

6

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

Is battery voltage present?

10.5-15 V

Go to Step 7

Go to Step 8

7

Repair the short circuit condition to battery in CKT 92.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

8

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

9

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

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

1.0 V

Go to Step 10

Go to Step 11

10

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

11

Repair the battery voltage connection to CKT 113.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

12

  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 the DMM.

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

1.0 V

Go to Step 13

Go to Step 14

13

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

14

Repair the battery voltage connection to CKT 112.

Is the repair complete?

--

Go to Wiper/Washer System Check

--