Schematic Reference: Power Window Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you review the Diagnostic System Check-Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn ON the ignition, with the engine OFF.
2. Operate the driver power window from the master switch.

Does the driver power window operate normally?

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

Go to Step 3

1. Disable the window lockout function, if equipped.
2. Operate the passenger windows from the master switch.

Do the passenger windows operate normally?

Go to Step 4

Go to Step 13

1. Disconnect the power window master switch.
2. Connect a test lamp between the power windows fuse voltage supply circuit at the master switch connector and a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 15

1. Connect the power window master switch.
2. Disconnect the driver power window motor.
3. Connect a test lamp between the power window motor left front up circuit at the power window motor connector and a good ground.
4. Operate the driver power window in the up direction.

Does the test lamp illuminate?

Go to Step 6

Go to Step 8

1. Connect a test lamp between the power window motor left front down circuit at the power window motor connector and a good ground.
2. Operate the driver power window in the down direction.

Does the test lamp illuminate?

Go to Step 7

Go to Step 9

1. Connect a test lamp between the power window motor left front up and down circuits at the power window motor connector.
2. Operate the left front power window in the up and down directions.

Does the test lamp illuminate in both directions?

Go to Step 11

Go to Step 10

Test the power window left front up circuit for a short to ground, open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 10

Test the power window left front down circuit for a short to ground, open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 10

Inspect for poor connections at the power window master switch harness connector. 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 16

Go to Step 12

Inspect for poor connections at the power window motor harness connector. 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 16

Go to Step 14

Replace the power window master switch.

Did you complete the repair?

Go to Step 16

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Locate and repair a loose connection or an open in the left power window switch ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 16

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Replace the left front power window motor. Refer to Door Window Regulator Replacement .

Did you complete the repair?

Go to Step 16

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Locate and repair a loose connection, open or short to ground in the fused Power Window circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 16

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3