GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Moveable Window Schematics

Connector End View Reference: Window Systems Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Verify that the passenger door power window is inoperative.

Do the passenger door power windows operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Turn OFF the ignition .
  2. Disconnect the appropriate passenger window switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the power window master switch lockout control circuit of the appropriate passenger window switch harness connector 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 harness connector and the power window master switch down signal circuit of the appropriate passenger window switch harness connector.
  2. Activate the driver window switch to the UP and DOWN positions.

Does the test lamp illuminate in both positions?

Go to Step 5

Go to Step 7

5

  1. Turn OFF the ignition .
  2. Connect the appropriate passenger window switch.
  3. Disconnect the appropriate passenger window motor.
  4. Turn ON the ignition, with the engine OFF.
  5. Connect a test lamp between the power window motor up circuit of the appropriate passenger window motor harness connector and the power window motor down circuit of the appropriate passenger window motor harness connector.
  6. Activate the appropriate passenger window switch to the UP and DOWN positions.

Does the test lamp illuminate in both positions?

Go to Step 9

Go to Step 8

6

Test the power window master switch lockout control circuit of the appropriate passenger window switch for an open. 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 control 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 harness connector of 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 harness connector of 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 harness connector of 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 Motor Replacement or Rear Side Door Window Regulator Motor Replacement .

Did you complete the replacement?

Go to Step 15

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13

Replace the driver window switch. Refer to Door Lock and Side Window Switch Replacement - Driver Side .

Did you complete the replacement?

Go to Step 15

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14

Replace the appropriate passenger window switch. Refer to Door Lock and Side Window Switch Replacement - Passenger Side .

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