Schematic Reference: Power Window Schematics

Did you review the Power Windows Description and Operation?

Go to Step 2

Go to Symptoms - Doors

1. Turn ON the ignition with, the engine OFF.
2. Ensure the window lockout function is disabled.
3. Operate the power window from both the passenger window switch and the driver window switch.

Does the power window operate properly from both switches?

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

Go to Step 3

Does the power window operate from the passenger window switch and not the driver window switch?

Go to Step 5

Go to Step 4

Does the power window operate from the driver window switch and not the passenger window switch?

Go to Step 33

Go to Step 8

1. Disconnect the driver power window switch.
2. Connect a test lamp between the driver window switch ignition 3 voltage circuit at the window switch harness connector and a good ground.

Does the test lamp illuminate?

Go to Step 6

Go to Step 28

1. Connect the driver power window switch.
2. Disconnect the passenger power window switch.
3. Connect a test lamp between the power window up signal circuit at the passenger power window switch harness connector and a good ground.
4. Actuate the driver power window switch in the up position.

Did the test lamp illuminate?

Go to Step 7

Go to Step 18

1. Connect a test lamp between the power window down signal circuit at the passenger power window switch harness connector and a good ground.
2. Actuate the driver power window switch in the down position.

Does the test lamp illuminate?

Go to Step 24

Go to Step 19

1. Disconnect the passenger power window switch.
2. Connect a test lamp between the power window lockout signal circuit at the passenger power window switch harness connector and a good ground.

Did the test lamp illuminate?

Go to Step 22

Go to Step 9

Connect a test lamp between the ignition 3 voltage circuit at the passenger power window switch harness connector and a good ground.

Did the test lamp illuminate?

Go to Step 10

Go to Step 14

Connect a test lamp between the ground circuit at the passenger power window switch harness connector and B+.

Did the test lamp illuminate?

Go to Step 11

Go to Step 27

1. Connect the passenger power window switch.
2. Disconnect the passenger power window motor.
3. Connect a test lamp between the power window motor up circuit at the power window motor harness connector and a good ground.
4. Actuate the passenger power window switch in the up position.

Did the test lamp illuminate?

Go to Step 12

Go to Step 20

1. Connect a test lamp between the power window motor down circuit at the power window motor harness connector and a good ground.
2. Actuate the passenger power window switch in the down position.

Did the test lamp illuminate?

Go to Step 13

Go to Step 21

1. Connect a test lamp between the power window motor up and down circuits at the power window motor harness connector.
2. Actuate the passenger power window switch in the up and down positions.

Did the test lamp illuminate in both directions?

Go to Step 25

Go to Step 24

1. Remove the power window relay.
2. Connect a test lamp between the power window relay battery positive voltage circuit at the relay center and a good ground.

Does the test lamp illuminate?

Go to Step 15

Go to Step 29

1. Turn ON the ignition with, the engine OFF.
2. Connect a test lamp between the power window relay ignition 1 voltage circuit at the relay center and a good ground.

Does the test lamp illuminate?

Go to Step 16

Go to Step 31

Connect a test lamp between the power window relay ground circuit at the relay center and B+.

Does the test lamp illuminate?

Go to Step 17

Go to Step 30

1. Connect a fused jumper across the battery positive voltage circuit and the ignition 3 voltage circuit at the relay block.
2. Operate the power window from the power window switches.

Did the power window operate properly?

Go to Step 26

Go to Step 28

Test for an open, short to ground or B+ in the power window up signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 36

Go to Step 23

Test for an open, short to ground or B+ in the power window down signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 36

Go to Step 23

Test for an open or short to ground in the power window motor up circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 36

Go to Step 24

Test for an open or short to ground in the power window motor down circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 36

Go to Step 24

Test for a short to B+ in the power window lockout signal circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 36

Go to Step 23

Inspect for poor connections at the driver power window 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 36

Go to Step 32

Inspect for poor connections at the passenger power window 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 36

Go to Step 33

Inspect for poor connections at the power window motor. 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 36

Go to Step 34

Inspect for poor connections at the power window relay. 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 36

Go to Step 35

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

Did you complete the repair?

Go to Step 36

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Repair the open in the ignition 3 voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 36

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Repair the open in the power window relay battery positive voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 36

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

Did you complete the repair?

Go to Step 36

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Repair the open in the power window relay ignition 1 voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 36

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Replace the driver power window switch.

Did you complete the repair?

Go to Step 36

--

Replace the passenger power window switch.

Did you complete the repair?

Go to Step 36

--

Replace the power window motor.

Did you complete the repair?

Go to Step 36

--

Replace the power window relay.

Did you complete the repair?

Go to Step 36

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2