Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Master Electrical Component List

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn ON the ignition, with the engine OFF.
2. Turn both the front windshield and rear window wiper washer switches OFF.

Are the wipers OFF?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Are the rear wipers always ON?

Go to Step 4

Go to Step 7

1. The rear wipers are always ON.
2. Turn OFF the ignition.
3. Disconnect the rear wiper relay.
4. Turn ON the ignition, with the engine OFF.

Are the rear wipers OFF?

Go to Step 5

Go to Step 6

1. Turn OFF the ignition.
2. Connect a test lamp between the rear wiper relay control circuit and the accessory voltage side of the rear wiper relay at the rear wiper relay socket terminals.
3. Turn ON the ignition, with the engine OFF.

Does the test lamp illuminate?

Go to Step 8

Go to Step 16

Test the rear window wiper motor control circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 14

1. The front wipers are always ON.
2. Turn OFF the ignition.
3. Disconnect the harness connector of the windshield wiper washer switch.
4. Turn ON the ignition, with the engine OFF.

Are the front wipers OFF?

Go to Step 9

Go to Step 15

1. Turn OFF the ignition.
2. Disconnect the harness connector C2 of the body control module (BCM).
3. Connect a test lamp between the rear wiper switch signal circuit of the harness connector and a good ground.
4. Turn ON the ignition, with the engine OFF.

Does the test lamp illuminate?

Go to Step 10

Go to Step 12

Connect a test lamp between the windshield wiper switch pulse delay signal circuit of the harness connector and a good ground.

Does the test lamp illuminate?

Go to Step 11

Go to Step 13

Test the rear wiper switch signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 13

Test the windshield wiper switch pulse delay signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 12

Inspect for poor connections at the BCM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 19

Inspect for poor connections at the windshield wiper washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 18

Inspect for poor connections at the rear wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 17

Repair the windshield wiper motor high speed circuit or the windshield wiper motor low speed circuit for a short to voltage. Refer to Wiring Repairs and Connector Repairs .

Did you complete the repair?

Go to Step 20

--

Replace the rear wiper relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 20

--

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

Did you complete the replacement?

Go to Step 20

--

Replace the windshield wiper washer switch. Refer to Turn Signal Multifunction Switch Replacement .

Did you complete the replacement?

Go to Step 20

--

Replace the BCM. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 20

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2