GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Were you sent here from the Wiper/Washer System Check?

--

Go to Step 2

Go to Wiper/Washer System Check

2

Inspect the WIP fuse for continuity.

Does the WIP fuse have continuity?

--

Go to Step 3

Go to Step 6

3

  1. Turn the ignition switch to the on position.
  2. Disconnect connector C3 of junction block 2.
  3. Using a J 39200 , test for B+ at cavity 4 of connector C3.

Was B+ tested?

--

Go to Step 4

Go to Step 5

4

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

Is the repair complete?

--

Go to Wiper/Washer System Check

--

5

Repair/replace junction block 2. Refer to Instrument Panel Wiring Harness Replacement and Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

6

  1. Disconnect connector C3 of junction block 2.
  2. Turn the windshield wiper/washer switch to the off position.
  3. Test for continuity using a J 39200 , between cavity 4 of connector C3 of junction block 2 and ground.

Is there continuity from cavity 4 to ground?

--

Go to Step 7

Go to Step 8

7

Repair the short to ground condition between cavity 4 of connector C3 of junction block 2 and the windshield wiper motor or the windshield wiper/washer switch. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

8

With connector C3 of junction block 2 still disconnected and the washer switch in the off position:

Test for continuity using a J 39200 , between cavity 5 of connector C3 of junction block 2 and ground.

Is there continuity from cavity 5 to ground?

--

Go to Step 10

Go to Step 9

9

Replace the WIP fuse.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

10

With connector C3 of junction block 2 still disconnected and the washer switch in the off position:

  1. Disconnect the windshield washer pump connector.
  2. Test for continuity using a J 39200 , between cavity 5 of connector C3 of junction block 2 and ground.

Is there continuity from cavity 5 to ground?

--

Go to Step 11

Go to Step 12

11

Repair the short to ground condition in the BLU wire between cavity 5 of connector C3 of junction block 2 and cavity 2 of the windshield washer pump connector. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

12

  1. Disconnect the windshield wiper/washer switch connector.
  2. Test for continuity using a J 39200 , between cavity 11 of the windshield wiper/washer switch connector and ground.

Is there continuity from cavity 11 to ground?

--

Go to Step 13

Go to Step 4

13

Repair the short to ground condition in the BLU/YEL wire between cavity 11 of the windshield wiper/washer switch connector and cavity 1 of the windshield washer pump connector. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Wiper/Washer System Check

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