Schematic Reference: Wiper/Washer Schematics

Connector End View Reference: Wiper/Washer Connector End Views

DEFINITION: The rear wiper motor is inoperative in one or more modes, the rear washer pump may or may not operate.

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

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?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Did the rear wipers operate in any of the rear wiper/washer switch position?

Go to Step 8

Go to Step 4

1. Disconnect the rear window wiper module connector.
2. Connect a test lamp from the accessory voltage circuit terminal in the wiper motor harness connector to a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

Connect a test lamp from the accessory voltage circuit terminal to the ground circuit terminal in the wiper motor harness connector.

Does the test lamp illuminate?

Go to Step 13

Go to Step 6

Repair the rear wiper motor ground circuit for an open or high resistance. Refer to Circuit Testing and to Wiring Repairs .

Is the repair complete?

Go to Step 15

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Repair the accessory voltage supply circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs .

Is the repair complete?

Go to Step 15

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1. Turn the ignition OFF.
2. Disconnect the rear window wiper module connector.
3. Connect a test lamp from the rear window wiper switch delay/on signal circuit terminal in the wiper motor harness connector to a good ground.
4. Turn the ignition ON, with the engine OFF.
5. Turn the rear wiper switch to the 1 and 2 positions.

Does the test lamp illuminate for both rear wiper switch positions?

Go to Step 13

Go to Step 9

Did the test lamp illuminate in any of the rear wiper switch position?

Go to Step 11

Go to Step 10

1. Turn the ignition OFF.
2. Disconnect the rear wiper/washer switch.
3. Test the rear window wiper switch delay/on signal circuit for an open or short to ground. Refer to Circuit Testing and to Wiring Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 11

Inspect for poor connections at the rear wiper/washer switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 12

Replace the rear wiper/washer switch. Refer to Console Replacement .

Is the repair complete?

Go to Step 15

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

Did you find and correct the condition?

Go to Step 15

Go to Step 14

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

Is the repair complete?

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 1