GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Wiper/Washer System Check performed?

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Go to Step 2

Go to Wiper/Washer System Check

2

  1. Turn ignition OFF.
  2. Disconnect the windshield wiper motor connector.
  3. Turn the ignition ON.
  4. Set the wiper/washer switch to LO.
  5. Connect a test light from wiper motor connector terminal E to ground.

Is the test light on?

--

Go to Step 6

Go to Step 3

3

Connect a test light (backprobe) from terminal D at the wiper/washer switch connector to ground.

Is the test light on?

--

Go to Step 4

Go to Step 5

4

Repair the open in CKT 112 between the switch and the motor.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

5

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

--

6

Measure the voltage from terminal D to ground at the windshield wiper motor connector using a DMM.

Is the voltage within the specified value?

10.5-15 V

Go to Step 7

Go to Step 8

7

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

8

Measure the voltage from terminal E to ground at the wiper/washer switch connector using a DMM.

Is the voltage within the specified value?

10.5-15 V

Go to Step 9

Go to Step 5

9

Repair the open in CKT 113 between the switch and the motor.

Is the repair complete?

--

Go to Wiper/Washer System Check

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