GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition switch to the ACCY or RUN position.
  2. Turn the wiper/washer switch to the HIGH position.
  3. Use a J 39200 DMM in order to backprobe the wiper/washer switch pigtail from cavity C to B+. Refer to Using Connector Test Adapters in Wiring Systems.
  4. Measure the voltage.

Is the voltage greater than the specified value?

10.0 V

Go to Step 3

Go to Step 2

2

Replace the wiper/washer switch. Refer to Windshield Wiper and Washer Switch Assembly - Disassemble - Off Vehicle in Steering Wheel and Column-Tilt.

Did you complete the repair?

--

System OK

--

3

  1. Use a J 39200 DMM in order to backprobe the windshield wiper pulse control module from cavity C to B+.
  2. Measure the voltage.

Is the voltage greater than the specified value?

10.0 V

Go to Step 5

Go to Step 4

4

Replace the windshield wiper pulse control module.

Did you complete the repair?

--

System OK

--

5

Repair the open in CKT 92 (PPL) between the windshield wiper pulse control module, cavity C and the wiper/washer provision connector, C207.

Did you complete the repair?

--

System OK

--