GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Wiper/Washer System Check performed?

--

Go to Step 2

Go to Wiper/Washer System Check

2

Inspect for an open wiper/washer fuse.

Is the fuse open?

--

Go to Step 3

Go to Step 4

3

Replace the wiper/washer fuse.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

4

  1. Disconnect wiper/washer switch connector C201.
  2. Turn the ignition switch ON.
  3. Connect a test light from connector C201, terminal E9, to ground.

Is the test light on?

--

Go to Step 6

Go to Step 5

5

Repair the open or poor connection in CKT 243.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

6

  1. Disconnect wiper motor connector C2.
  2. Connect the test light from connector C2, terminal C, to battery voltage.

Is the test light on?

--

Go to Step 8

Go to Step 7

7

Repair the open in CKT 1050.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

8

  1. Reconnect the wiper/washer switch connector C201.
  2. Disconnect wiper motor connector C1.
  3. Connect the test light from wiper motor connector C1, terminal C, to ground.

Is the test light on?

--

Go to Step 12

Go to Step 9

9

Inspect for a poor connection or an open in CKT 95.

Is a poor connection or an open present?

--

Go to Step 10

Go to Step 11

10

Repair the poor connection or open in CKT 95.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

11

Replace the wiper/washer switch. Refer to Multifunction Turn Signal Lever Replacement - On Vehicle in Steering Wheel and Column -Tilt.

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

12

  1. Set the wiper switch to LO.
  2. Connect the test light from wiper motor connector C1, terminal B, to ground.

Is the test light on?

--

Go to Step 15

Go to Step 13

13

Inspect for a poor connection or an open in CKT 91.

Is a poor connection or an open present?

--

Go to Step 14

Go to Step 11

14

Repair the poor connection or open in CKT 91.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

15

Inspect for continuity between wiper motor connector C1, terminal A, and connector C2, terminal B.

Is continuity present?

--

Go to Step 16

Go to Step 19

16

Inspect for a poor connection at wiper motor connectors C1 and C2.

Is a poor connection present?

--

Go to Step 18

Go to Step 17

17

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

Is the replacement complete?

--

Go to Wiper/Washer System Check

--

18

Repair the poor connection.

Is the repair complete?

--

Go to Wiper/Washer System Check

--

19

Repair the open in CKT 196.

Is the repair complete?

--

Go to Wiper/Washer System Check

--