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

Inspect for an open WIPER fuse.

Is the fuse open?

--

Go to Step 3

Go to Step 4

3

Replace the WIPER fuse.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

4

  1. Set the ignition switch to RUN.
  2. Backprobe from the wiper/washer switch connector, terminal F, to ground using a J 34142 B.

Is the test light on?

--

Go to Step 6

Go to Step 5

5

Repair the poor connection or open in CKT 143 to the wiper/washer switch.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

6

  1. Set the wiper switch to HI.
  2. Connect a J 34142 B from the wiper/washer switch connector, terminal D to ground.

Is the test light on?

--

Go to Step 9

Go to Step 7

7

Check for a poor connection to the wiper/washer switch.

Is a poor connection present?

--

Go to Step 8

Go to Step 16

8

Repair the poor connection to the wiper/washer switch.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

9

  1. Disconnect the wiper motor connector.
  2. Connect a J 34142 B from the wiper motor connector, terminal C, to ground.

Is the test light on?

--

Go to Step 11

Go to Step 10

10

Repair the poor connection or the open in CKT 92.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

11

Connect a J 34142 B from the wiper motor connector, terminal C to terminal A.

Is the test light on?

--

Go to Step 13

Go to Step 12

12

Repair the poor connection or the open in CKT 251.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

13

Check for a poor connection to the wiper motor.

Is a poor connection present?

--

Go to Step 15

Go to Step 14

14

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

15

Repair the poor connection to the wiper motor.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

16

Replace the wiper/washer switch. Refer to Windshield Wiper and Washer Switch Replacement - On Vehicle in Steering Wheel and Column or Windshield Wiper and Washer Switch Replacement - On Vehicle in Steering Wheel and Column- Tilt.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--