GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Body and Accessories 🢒 Doors 🢒 Power Window Lockout Function Inoperative

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. This step determines if the DDM receives the lockout switch request from the driver door switch assembly (DDSA).

    2.

  2. This step determines if the indicator is operating properly.

Step

Action

Yes

No

Schematic Reference: Power Window Schematics and Door Control Module Schematics

DEFINITION: This test assumes that all DTCs have been diagnosed.

Important: Make sure that the passenger window lockout option is selected as ON in the vehicle owner customization menu. If the window lockout selection is OFF, set it to ON and verify that the fault is still present.

1

Did you perform the Door Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

2

Verify that the Power Windows Inoperative - Lockout Function complaint is present.

Does the power windows lockout system operate as described in the Description and Operation?

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

Go to Step 3

3

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With the scan tool, observe the Window Lockout Sw. parameter in the Driver Door Module, Data Display, Inputs list.
  4. Activate the power window lockout switch to both Active and Idle.

Does the parameter change to both Active and Idle?

Go to Step 4

Go to Step 6

4

Observe the lockout indicator on the window lockout switch button while momentarily pressing the lockout switch button.

Does the indicator illuminate when you momentarily press the lockout switch button, and go out when you momentarily press it again?

Go to Step 5

Go to Step 6

5

Inspect for poor connections at the harness connector of the driver door module (DDM). 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 9

Go to Step 7

6

Inspect for poor connections at the harness connector of the driver door switch assembly (DDSA). 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 9

Go to Step 8

7

Replace the DDM. Refer to Door Control Module Replacement .

Did you complete the replacement?

Go to Step 9

--

8

Replace the driver door switch assembly (DDSA). Refer to Front Door Switch Replacement .

Did you complete the replacement?

Go to Step 9

--

9

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2