Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The DELAY mode is inoperative or operates at the ON speed, and the wiper does not park.

Did you review the Rear Wiper/Washer System Description and Operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Wiper/Washer Systems

1. Turn the ignition ON.
2. Operate the rear wiper/washer system in all the switch positions.

Does the rear wiper/washer system operate normally?

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

Go to Step 3

1. Disconnect the rear wiper motor module switch input connector.
2. Connect a test lamp from the rear wiper washer switch delay/on signal circuit terminal in the harness connector to ground.
3. Turn the ignition ON.
4. Turn the rear wiper/washer switch to the DELAY position.

Does the test lamp illuminate?

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Go to Step 4

Go to Step 10

With the test lamp connected as in the previous step, turn the rear wiper/washer switch to the on position.

Does the test lamp illuminate?

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Go to Step 5

Go to Step 14

1. Connect a test lamp from the rear wiper washer switch off/delay signal circuit terminal to ground.
2. Turn the ignition ON.
3. Turn the rear wiper/washer switch to the OFF position.

Does the test lamp illuminate?

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Go to Step 6

Go to Step 11

With the test lamp connected as in the previous step, turn the rear wiper/washer switch to the DELAY position.

Does the test lamp illuminate?

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Go to Step 7

Go to Step 14

With the test lamp connected as in the previous step, turn the rear wiper/washer switch to the ON position.

Does the test lamp illuminate?

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Go to Step 12

Go to Step 8

1. Reconnect the rear wiper motor module switch input connector.
2. Turn the rear wiper/washer switch to the OFF position.

Turn the ignition ON.

3. Using a test lamp backprobe from the wiper motor park switch reference voltage circuit terminal B in the wiper motor connector to ground.

Does the test lamp illuminate?

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Go to Step 9

Go to Step 15

1. Operate the rear wiper in any mode.
2. Turn the ignition OFF while the wiper arm is in the up position.
3. Disconnect the wiper motor connector.
4. Test the resistance through the wiper motor park switch from the reference voltage circuit terminal B to the signal circuit terminal E.

Is the resistance within the specified values?

0-2ohms

Go to Step 15

Go to Step 17

Test the delay/on signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 18

Go to Step 13

Test the off/delay signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 18

Go to Step 13

Test the off/delay signal circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

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Go to Step 18

Go to Step 13

Inspect for poor connections at the rear 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?

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Go to Step 18

Go to Step 14

Replace the rear wiper/washer switch. Refer to Accessory Switch Replacement in Instrument Panel, Gages, and Console.

Is the repair complete?

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Go to Step 18

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

Did you find and correct the condition?

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Go to Step 18

Go to Step 16

Replace the rear wiper motor module.

Is the repair complete?

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Go to Step 18

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

Is the repair complete?

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Go to Step 18

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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 Step 3