GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Wiper/Washer System Check?

--

Go to Step 2

Go to Wiper/Washer System Check or Wiper/Washer System Check

2

  1. Disconnect the wiper motor connector C1.
  2. Turn the ignition switch to RUN.
  3. Turn the wiper/washer switch to LOW.
  4. Connect a test lamp from connector C1, terminal B, to ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Connect a test lamp from connector C1, terminal C, to ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

4

Test for an open in CKT 91.

Does an open exist?

--

Go to Step 5

Go to Step 6

5

Repair the open in CKT 91.

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

6

Replace the wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement - On Vehicle .

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

7

Test for continuity through CKT 196.

Does continuity exist?

--

Go to Step 11

Go to Step 14

8

Test for an open in CKT 97.

Does an open exist?

--

Go to Step 9

Go to Step 10

9

Repair the open in CKT 97.

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

10

Replace the wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement - On Vehicle .

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

11

Test for a poor connection at the wiper motor connector C1.

Does a poor connection exist?

--

Go to Step 12

Go to Step 13

12

Repair the poor connection at the wiper motor connector C1.

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

13

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

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--

14

Repair the open in CKT 196.

Did you complete the repair?

--

Go to Wiper/Washer System Check or Wiper/Washer System Check

--