Schematic Reference: Power Window Schematics

DEFINITION: This diagnostic procedure should be used to diagnose a total failure of the power window system.

Did you review the Power Window Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Doors

1. Turn the ignition ON, with the engine OFF.
2. Operate both power windows up and down from both the power window master switch and the individual power window switch.

Do both power windows operate up and down from both switches?

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

Go to Step 3

Did either power window operate from either switch?

Go to Power Window Inoperative - Driver Door or Power Window Inoperative - Passenger Door

Go to Step 4

1. Disconnect the power window master switch.
2. Turn the ignition ON, with the engine OFF.
3. Connect a test lamp between the power window master switch battery voltage supply circuit and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

Connect the test lamp between the power window master switch ground circuit and B+.

Does the test lamp illuminate?

Go to Step 6

Go to Step 9

Inspect for poor connections at the power window master 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 10

Go to Step 8

Repair the open or short to ground in the battery voltage supply circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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Replace the power window master switch. Refer to Power Accessory Switch Panel Replacement .

Did you complete the repair?

Go to Step 10

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Repair the open in power window master switch ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3