Schematic Reference: Wiper/Washer Schematics

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

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 front washer switch and then the rear 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 fluid pump.
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the front washer switch control circuit to the rear washer switch circuit at the windshield washer fluid pump.
5. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 9

Go to Step 4

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

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

1. Turn OFF the ignition.
2. Disconnect the harness connector C2 of the BCM.
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the control circuit of the rear washer switch control circuit to a good ground.
5. Press the rear washer switch.

Does the test lamp illuminate?

Go to Step 11

Go to Step 6

1. Turn OFF the ignition.
2. Disconnect the harness connector of the windshield wiper washer switch.
3. Test the control circuit of the rear 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 15

Go to Step 10

1. Turn OFF the ignition.
2. Disconnect the harness connector C2 of the BCM.
3. Turn the ignition ON, with the engine OFF.
4. Connect a test lamp from the control circuit of the front washer switch to a good ground.
5. Press the front washer switch.

Does the test lamp illuminate?

Go to Step 11

Go to Step 8

1. Turn OFF the ignition
2. Disconnect the harness connector of the windshield wiper washer switch.
3. Test the control circuit of the front 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 15

Go to Step 10

Inspect for poor connections at the windshield washer fluid 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 15

Go to Step 12

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 15

Go to Step 13

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 15

Go to Step 14

Replace the windshield washer fluid pump. Refer to Washer Pump/Reservoir Replacement .

Did you complete the replacement?

Go to Step 15

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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 15

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

Replace the BCM. Refer to Body Control Module Replacement in Body Control System for applicable replacement procedure.

Did you complete the replacement?

Go to Step 15

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2