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. Disconnect wiper motor connector C1.
  2. Turn the ignition switch ON.
  3. Set the wiper switch to LO.
  4. Connect a test light from wiper motor connector C1, terminal B, to ground.

Is the test light on?

--

Go to Step 6

Go to Step 3

3

Inspect for a poor connection or an open in CKT 91.

Is a poor connection or an open present?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or the open in CKT 91.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

5

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

6

Connect a test light from wiper motor connector C1, terminal C, to ground.

Is the test light on?

--

Go to Step 10

Go to Step 7

7

Inspect for a poor connection or an open in CKT 95.

Is a poor connection or an open present?

--

Go to Step 9

Go to Step 8

8

Repair the poor connection or the open in CKT 95.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

9

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

10

Inspect for continuity between wiper motor connector C1, terminal A, and connector C2, terminal B, using a J39200.

Is continuity present?

--

Go to Step 12

Go to Step 11

11

Repair the open in CKT 196.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

12

Inspect for a poor connection to the wiper motor at connector C1.

Is a poor connection present?

--

Go to Step 13

Go to Step 14

13

Repair the poor connection at wiper motor connector C1.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

14

Replace the wiper motor. Refer to Windshield Wiper Motor Replacement .

Is the replacement complete?

--

Go to Wiper/Washer System Check

--