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. Turn the ignition switch to RUN.
  2. Turn the wiper switch to LO.
  3. Measure the voltage by backprobing from the wiper/washer switch connector C215, terminal E, to ground using a J 39200 .

Is the measurement greater than the specified value?

1.0 V

Go to Step 6

Go to Step 3

3

Check for a poor connection at connector C215, or for an open in the pigtail to the wiper/washer switch.

Is a poor connection or an open present?

--

Go to Step 4

Go to Step 5

4

Repair the poor connection or the open circuit.

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 .

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

6

Measure the voltage by backprobing from the wiper/washer switch connector C215, terminal F, to ground using a J 39200 .

Is the measurement greater than the specified value?

1.0 V

Go to Step 10

Go to Step 7

7

Check for a poor connection at connector C215, or for an open in the pigtail to the wiper/washer switch.

Is a poor connection or an open present?

--

Go to Step 8

Go to Step 9

8

Repair the poor connection or the open circuit.

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 .

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

10

  1. Disconnect the wiper motor connector.
  2. Measure the voltage from the wiper motor connector, terminal D to ground, using a J 39200 .

Is the measurement greater than the specified value?

1.0 V

Go to Step 12

Go to Step 11

11

Repair the open in CKT 113.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

12

Measure the voltage from the wiper motor connector, terminal E, to ground using a J 39200 .

Is the measurement greater than the specified value?

1.0 V

Go to Step 14

Go to Step 13

13

Repair the open in CKT 112.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

14

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--