Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

Did you perform the Wiper/Washer Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Wiper/Washer

1. Turn the ignition ON.
2. Press the windshield washer switch.

Do the windshield washers operate normally?

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

Go to Step 3

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield washer pump.
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the control circuit to the ground circuit of the windshield washer pump.
5. Press the windshield washer switch.

Does the test lamp illuminate?

Go to Step 10

Go to Step 4

1. Connect a test lamp from the control circuit of the windshield washer pump to a good ground.
2. Press the windshield washer switch.

Does the test lamp illuminate?

Go to Step 15

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield wiper/washer switch.
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the accessory voltage circuit of the windshield wiper/washer switch to a good ground.

Does the test lamp illuminate?

Go to Step 6

Go to Step 9

1. Connect the harness connector of the windshield washer pump.
2. Connect a 10-ampere fused jumper wire from the accessory voltage circuit of the windshield wiper/washer switch to the control circuit of the windshield washer pump.

Do the windshield washers operate?

Go to Step 11

Go to Step 7

1. Turn OFF the ignition.
2. Disconnect the harness connector C4 of the Body Control Module (BCM).
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the control circuit of the windshield washer pump to a good ground.

Does the test lamp illuminate?

Go to Step 8

Go to Step 14

1. Turn OFF the ignition.
2. Disconnect the harness connector C3 of the BCM.
3. Turn the ignition ON, with the engine OFF.
4. Connect a 10-ampere fused jumper wire from the control circuit of the windshield washer pump in the harness connector C3 to the control circuit of the windshield washer pump in the harness connector C4 of the BCM.

Do the windshield washers operate?

Go to Step 12

Go to Step 14

Test the accessory voltage circuit of the windshield wiper/washer switch for an open or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 19

Go to Step 13

Inspect for poor connections at the windshield washer pump. 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 19

Go to Step 16

Inspect for poor connections at 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 19

Go to Step 17

Inspect for poor connections at the 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 19

Go to Step 18

Repair a short to ground on the control circuit of the windshield washer pump. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 19

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Repair an open or high resistance on the control circuit of the windshield washer pump. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 19

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Repair an open or high resistance on the ground circuit of the windshield washer pump. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 19

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Replace the windshield washer pump. Refer to Washer Pump Replacement .

Did you complete the replacement?

Go to Step 19

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

Did you complete the replacement?

Go to Step 19

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Important: Perform the programming or set up procedure for the control module if required.

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 19

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3