Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Master Electrical Component List in Wiring Systems

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

1. Turn ON the ignition, with the engine OFF.
2. Operate the wiper switch through all switch positions.

Do the wiper system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Is there only one mode inoperative in the wipers?

Go to Step 4

Go to Step 6

Is the mode intermittent?

Go to Step 7

Go to Step 5

Is the mode LOW or MIST?

Go to Step 8

Go to Step 10

1. Turn OFF the ignition.
2. Connect a test lamp between the HIGH front wiper motor control circuit and the front wiper motor ground circuit.
3. Turn ON the ignition, with the engine OFF.
4. Turn the wipers to HIGH.

Does the test lamp illuminate?

Go to Step 14

Go to Step 12

1. Turn OFF the ignition.
2. Connect a test lamp between the windshield wiper switch pulse/delay signal circuit and a good ground.
3. Turn ON the ignition, with the engine OFF.
4. Turn the wipers to intermittent.

Does the test lamp illuminate?

Go to Step 15

Go to Step 13

1. Turn OFF the ignition.
2. Connect a test lamp at the LOW/MIST control circuit at the wiper motor and a good ground.
3. Turn ON the ignition, with the engine OFF.
4. Turn the wiper switch to LOW or MIST.

Does the test lamp illuminate?

Go to Step 14

Go to Step 9

1. Turn OFF the ignition.
2. Disconnect the windshield wiper/washer switch connector.
3. Test the LOW/MIST control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 20

Go to Step 13

1. The inoperative mode is HIGH.
2. Turn OFF the ignition.
3. Connect a test lamp at the HIGH control circuit at the wiper motor and a good ground.
4. Turn ON the ignition, with the engine OFF.
5. Turn the wiper switch to HIGH.

Does the test lamp illuminate?

Go to Step 14

Go to Step 11

1. Turn OFF the ignition.
2. Disconnect the windshield wiper/washer switch connector.
3. Test the high control circuit for an open or a short to ground.

Did you find and correct the condition?

Go to Step 20

Go to Step 13

Connect a test lamp between the HIGH front wiper motor control circuit and a good ground.

Does the test lamp illuminate?

Go to Step 16

Go to Step 13

Inspect for poor connections at the harness connector of the windshield wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 17

Inspect for poor connections at the harness connector of the wiper motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

Go to Step 18

Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 20

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Repair an open in the wiper motor ground circuit. Refer to Wiring Repairs and Connector Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 20

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Replace the windshield wiper/washer switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.

Did you complete the replacement?

Go to Step 20

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

Did you complete the replacement?

Go to Step 20

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Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 20

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2