GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition ON.
  2. Turn the wiper switch to HI.
  3. Measure the voltage at the wiper motor connector terminal 6.

Is the voltage within the specified value?

11-14 V

Go to Step 2

Go to Step 3

2

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

Is the repair complete?

--

System OK

--

3

  1. Disconnect the wiper switch.
  2. Turn the wiper switch to HI.
  3. Use an ohmmeter to check for continuity between the wiper switch connector terminal A8 and A9.

0 ohms

Go to Step 5

Go to Step 4

4

Replace the wiper switch. Refer to Windshield Wiper and Washer Switch Replacement .

Is the repair complete?

--

System OK

--

5

Repair the open circuit between the wiper switch connector terminal A9 and the wiper motor connector terminal 6.

Is the repair complete?

--

System OK

--