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. Set ignition switch to RUN.
  2. Backprobe from the wiper/washer switch connector C215, terminal D to ground, with a test light .

Is the test light on?

--

Go to Step 4

Go to Step 3

3

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

Is the repair complete?

--

Go to Wiper/Washer System Check

--

4

  1. Set the wiper switch to HI.
  2. Connect the test light from connector C215, terminal G, to ground.

Is the test light on?

--

Go to Step 7

Go to Step 5

5

Check for a poor connection at connector C215, terminal D or for an open in the pigtail (CKT 143) to the wiper/washer switch.

Is a poor connection or an open present?

--

Go to Step 6

Go to Step 14

6

Repair the poor connection or the open in the pigtail (CKT 143).

Is the repair complete?

--

Go to Wiper/Washer System Check

--

7

  1. Disconnect the wiper motor connector.
  2. Connect the test light from the wiper motor connector terminal C to ground.

Is the test light on?

--

Go to Step 9

Go to Step 8

8

Repair the open or the poor connection in CKT 92 between connection C215 and the wiper motor.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

9

Connect the test light from the wiper motor connector terminal C to terminal A.

Is the test light on?

--

Go to Step 11

Go to Step 10

10

Repair the open or poor connection in CKT 150.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

11

Check for a poor connection to the wiper motor assembly.

Is a poor connection present?

--

Go to Step 13

Go to Step 12

12

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

13

Repair the poor connection.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

14

Replace the wiper/washer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle .

Is the replacement complete?

--

Go to Wiper/Washer System Check

--