Did you review the Wiper Washer System Circuit Description and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

Inspect the WSW fuse #10 for an open.

Is the fuse open?

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Go to Step 3

Go to Step 10

1. Disconnect the windshield wiper motor connector.
2. Disconnect the washer pump connector.
3. Remove the WSW fuse #10.
4. Connect a DMM from the fuse terminal A in the instrument pannel electrical center to ground.
5. Measure the resistance to ground of circuit 143.

Is circuit 143 shorted to ground?

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Go to Step 5

Go to Step 4

1. With the DMM connected as in the previous step, the wiper motor, and washer pump connectors disconnected.
2. Operate all of the windshield wiper/washer switch functions while measuring the resistance to ground.

Is a short to ground indicated during any of the windshield wiper/washer switch functions?

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Go to Step 6

Go to Step 7

Repair the short to ground in circuit 143.

Did you complete the repair?

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Go to Step 16

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Test and repair the following circuits for a short to ground:

Did you complete the repair?

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Go to Step 16

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1. Install a good 25A fuse in the WSW fuse #10 location.
2. Connect the windshield washer pump motor connector.
3. Turn the ignition switch on.
4. Press the windshield washer switch.

Does the WSW fuse #10 open?

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Go to Step 9

Go to Step 8

1. Connect the windshield wiper motor connector.
2. Operate the windshield wipers in all modes.

Does the WSW fuse #10 open?

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Go to Step 15

Go to Testing for Electrical Intermittents

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

Did you complete the repair?

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Go to Step 16

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1. Disconnect the windshield wiper motor connector.
2. Turn the ignition switch on.
3. Connect a test light between the windshield wiper motor harness connector terminals A and B.

Does the test light illuminate?

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Go to Step 12

Go to Step 11

Test and repair the the following circuits for open or high resistance:

Did you complete the repair?

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Go to Step 16

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1. Disconnect the windshield wiper/washer switch pigtail connector C219.
2. Turn the windshield wiper/washer switch to the high position.
3. Measure the resistance through the windshield wiper/washer switch from the following connector terminals:

•	terminal C to D (0-2ohms)

•	terminal C to A (0-2ohms)

•	terminal C to B (approximately 24K ohms)

Are the resistance measurements within the values listed?

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Go to Step 14

Go to Step 13

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

Is the repair complete?

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Go to Step 16

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Test and repair the following circuits for an open or high resistance between the windshield wiper/washer switch connector C219 and the windshield wiper motor connector:

Did you find and correct the condition?

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Go to Step 16

Go to Step 15

1. Inspect and repair all wiper motor linkage for binding or damage.
2. If OK, replace the windshield wiper motor. Refer to Windshield Wiper Motor Replacement .

Is the repair complete?

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Go to Step 16

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Symptoms