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. Turn the wiper switch to LO.
  3. Measure the voltage by backprobing from wiper/washer switch connector terminal E to ground using a J 39200 .

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

1.0 V

Go to Step 3

Go to Step 6

3

Check for a poor connection condition at the wiper/washer switch connector.

Is a poor connection condition present?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection condition at the wiper/washer switch connector.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

5

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

6

Measure the voltage by backprobing from the wiper/washer switch connector terminal D to ground using a J 39200 .

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

1.0 V

Go to Step 7

Go to Step 10

7

Check for a poor connection condition at the wiper/washer switch connector.

Is a poor connection condition present?

--

Go to Step 8

Go to Step 9

8

Repair the poor connection condition at the wiper/washer switch connector.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

9

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

10

  1. Disconnect the wiper motor connector.
  2. Measure the voltage from the wiper motor connector terminal D to ground using the J 39200 .

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

1.0 V

Go to Step 11

Go to Step 12

11

Repair the open circuit condition in CKT 113.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

12

Measure the voltage from the wiper motor connector terminal E to ground using the J 39200 .

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

1.0 V

Go to Step 13

Go to Step 14

13

Repair the open circuit condition in CKT 112.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

14

  1. Replace the wiper motor cover assembly. Refer to Wiper Motor Cover Replacement .
  2. If the problem is not corrected, replace the wiper motor. Refer to Windshield Wiper Motor Replacement .

Is the replacement complete?

--

Go to Wiper/Washer System Check

--