GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Disconnect the connector at the multifunction switch.

Does the windshield washer pump motor continue to run?

--

Go to Step 3

Go to Step 2

2

Replace the multifunction switch.

Refer to Windshield Wiper and Washer Switch Replacement .

Is the repair complete?

--

System OK

--

3

Repair the short to ground in CKT 453 (BLU/ORN) between the multifunction switch and the windshield washer pump motor connector.

Refer to Wiring Repairs .

Is the repair complete?

--

System OK

--