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 C211, terminal E4 to ground, with a test light .

Is the test light on?

--

Go to Step 4

Go to Step 3

3

Repair the open circuit condition or poor connection condition in circuit 143 to the wiper/washer switch assembly.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

4

  1. Set the wiper switch to HI.
  2. Backprobe from the wiper/washer switch connector C211, terminal E3 to ground, with a test light .

Is the test light on?

--

Go to Step 7

Go to Step 5

5

Check for a poor connection at connector C211, terminal E3 and E4 or an open circuit condition in circuit 92 or 143 to the wiper/washer switch.

Is a poor connection condition or an open circuit condition present?

--

Go to Step 6

Go to Step 14

6

Repair the poor connection condition or the open circuit condition.

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 D to ground.

Is the test light on?

--

Go to Step 9

Go to Step 8

8

Repair the open circuit condition or the poor connection condition in circuit 92 between connection C211 and the wiper motor assembly.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

9

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

Is the test light on?

--

Go to Step 11

Go to Step 10

10

Repair the open circuit condition or poor connection in ground circuit 850.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

11

Check for a poor connection condition to the wiper motor assembly.

Is a poor connection condition present?

--

Go to Step 13

Go to Step 12

12

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

13

Repair the poor connection condition.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

14

Replace the wiper/washer switch assembly. Refer to Turn Signal and Multifunction Switch Assembly - Disassemble - Off Vehicle .

Is the replacement complete?

--

Go to Wiper/Washer System Check

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