GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Refer to Moveable Window Schematics

Connector End View Reference: Refer to Component Connector End Views

1

Did you review the Power Windows Description and Operation?

Go to Step 2

Go to Power Windows Description and Operation

2

Verify that the inoperative passenger door power window fault is present.

Do the passenger door power windows operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Disconnect the appropriate passenger window switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Probe the power window voltage supply circuit of the appropriate passenger window switch with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 6

4

  1. Connect a test lamp between the power window master switch up signal circuit of the appropriate passenger window switch and the power window master switch down signal circuit of the appropriate passenger window switch.
  2. Activate the driver window switch to the UP and DOWN positions.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5

  1. Connect the appropriate passenger window switch.
  2. Disconnect the appropriate passenger window motor.
  3. Connect a test lamp between the power window motor up control circuit of the appropriate passenger window motor and the power window motor down control circuit of the appropriate passenger window motor.
  4. Activate the appropriate passenger window switch to the UP and DOWN positions.

Does the test lamp illuminate?

Go to Step 9

Go to Step 8

6

Test the power window voltage supply circuit of the appropriate passenger window switch for an open or short to ground. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 10

7

Test the power window master switch signal circuits of the appropriate passenger window switch for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 10

8

Test the power window motor circuits of the appropriate passenger window motor for a short to voltage or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 11

9

Inspect for poor connections at the appropriate passenger window motor. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 12

10

Inspect for poor connections at the driver window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 13

11

Inspect for poor connections at the appropriate passenger window switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 15

Go to Step 14

12

Replace the appropriate passenger window motor. Refer to Front Side Door Window Regulator Replacement or Rear Side Door Window Regulator Replacement .

Did you complete the replacement?

Go to Step 15

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13

Replace the driver window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 15

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14

Replace the appropriate passenger window switch. Refer to Front Side Door Window Switch Replacement .

Did you complete the replacement?

Go to Step 15

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15

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2