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

Does the wiper keep running?

--

Go to Step 6

Go to Step 3

3

Check for a short to voltage in the pigtail wires to the wiper/washer switch.

Is a short to voltage present?

--

Go to Step 5

Go to Step 4

4

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

5

Repair the short to voltage in the pigtail wires to the wiper/washer switch.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

6

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

Is the measurement greater than the specified value?

1.0 V

Go to Step 14

Go to Step 7

7

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

Is the measurement greater than the specified value?

1.0 V

Go to Step 11

Go to Step 8

8

  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.

Is the measurement within the specified range?

10.5-15 V

Go to Step 9

Go to Step 10

9

Repair the short to voltage in CKT 92.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

10

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

11

  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.

Is measurement greater than the specified value?

1.0 V

Go to Step 12

Go to Step 13

12

Repair the short circuit to battery voltage condition in CKT 112.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

13

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

14

  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.

Is the measurement greater than the specified value?

1.0 V

Go to Step 16

Go to Step 15

15

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

16

Repair the short to voltage in CKT 113.

Is the repair complete?

--

Go to Wiper/Washer System Check

--