GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

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

Does the voltage measure within the specified range?

11-14 V

Go to Step 2

Go to Step 3

2

Replace the wiper motor.

Did you complete the repair?

--

System OK

--

3

  1. Disconnect the wiper switch.
  2. Turn the wiper switch to LO.
  3. Use an ohmmeter to measure for continuity between wiper switch terminal A8 and A5.

Does the resistance measure within the specified value?

0 ohms

Go to Step 5

Go to Step 4

4

Replace the wiper switch.

Did you complete the repair?

--

System OK

--

5

Repair the open circuit between wiper switch connector terminal A5 and wiper motor connector terminal 2.

Did you complete the repair?

--

System OK

--