GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Wiper/Washer System Check?

--

Go to Step 2

Go to Wiper/Washer System Check

2

  1. Set the ignition switch to RUN.
  2. Set the wiper switch to OFF.
  3. Disconnect the wiper/washer switch connector C201.

Do the wipers continue to operate?

--

Go to Step 5

Go to Step 3

3

Test for a short to voltage in the pigtail wires to the wiper/washer switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 16

Go to Step 4

4

Replace the wiper/washer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .

Did you complete the replacement?

--

Go to Step 16

--

5

Measure the voltage from connector C201 (vehicle side), terminal E2, to ground with a DMM.

Does the voltage measure greater than the specified value?

1.0 V

Go to Step 13

Go to Step 6

6

Measure the voltage from connector C201 (vehicle side), terminal E3, to ground with a DMM.

Does the voltage measure greater than the specified value?

1.0 V

Go to Step 10

Go to Step 7

7

  1. Reconnect the wiper/washer switch connector C201.
  2. Disconnect the wiper motor connector.
  3. Measure the voltage from wiper motor connector, terminal C, to ground with a DMM.

Does the voltage measure within the specified values?

10.5-15 V

Go to Step 8

Go to Step 9

8

Repair the short to voltage in CKT 92. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 16

--

9

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

Did you complete the replacement?

--

Go to Step 16

--

10

  1. Reconnect the wiper/washer switch connector C201.
  2. Disconnect the wiper motor connector.
  3. Measure the voltage from wiper motor connector, terminal E, to ground with a DMM.

Does the voltage measure greater than the specified value?

1.0 V

Go to Step 11

Go to Step 12

11

Repair the short to voltage in CKT 112. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 16

--

12

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

Did you complete the replacement?

--

Go to Step 16

--

13

  1. Reconnect the wiper/washer switch connector C201.
  2. Disconnect the wiper motor connector.
  3. Measure the voltage from wiper motor connector, terminal D, to ground with a DMM.

Does the voltage measure greater than the specified value?

1.0 V

Go to Step 15

Go to Step 14

14

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

Did you complete the replacement?

--

Go to Step 16

--

15

Repair the short to voltage in CKT 113. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 16

--

16

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Wiper/Washer System Check