GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Power Window Schematics

Connector End View Reference: Power Door 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 inoperative passenger door power window fault is present.

Do all the passenger door power windows operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 6

3

Is this vehicle a Lucerne?

Go to Step 4

Go to Step 6

4

Are all of the passenger windows inoperative?

Go to Step 5

Go to Step 7

5

Test for an open in the window lockout switch circuit of the driver window switch. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 18

6

  1. Disconnect the inoperative passenger window switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Probe the power window master switch lockout signal circuit of the inoperative passenger window switch with a test lamp that is connected to ground.

Does the test lamp illuminate?

Go to Step 8

Go to Step 10

7

  1. Disconnect the passenger window switch.
  2. Turn the ignition to the ON position.
  3. Using a test lamp connected to ground, probe the accessory voltage supply circuit.

Does the test lamp illuminate?

Go to Step 8

Go to Step 16

8

  1. Using a test lamp, probe between the master window switch up circuit and the master window switch down circuit.
  2. Activate the driver window switch to the UP and DOWN positions.

Does the test lamp illuminate?

Go to Step 9

Go to Step 11

9

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

Does the test lamp illuminate?

Go to Step 13

Go to Step 12

10

Test the power window master switch lockout signal circuit of the inoperative passenger window switch for an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 20

Go to Step 14

11

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

Did you find and correct the condition?

Go to Step 20

Go to Step 14

12

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

Did you find and correct the condition?

Go to Step 20

Go to Step 15

13

Inspect for poor connections at the inoperative 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 20

Go to Step 17

14

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 20

Go to Step 18

15

Inspect for poor connections at the inoperative 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 20

Go to Step 19

16

Repair a poor connection or an open in the accessory voltage supply circuit. Refer to Circuit Testing and Wiring Repairs .

Did you complete the repair?

Go to Step 20

--

17

Replace the inoperative 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 20

--

18

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

Did you complete the replacement?

Go to Step 20

--

19

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

Did you complete the replacement?

Go to Step 20

--

20

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2