GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 Seville 🢒 Body and Accessories 🢒 Doors 🢒 Power Window Lockout Function Inoperative

Diagnostic Aids

A simple, momentary press of the lockout switch button is all thats neccessary to activate the window lockout function. When the system has been activated, the LED indicator on the switch button will be illuminated. However, the scan tool parameter will only display Active while the switch button is being pressed. When the switch button is released, the parameter displayed will return to the Idle state regardless of whether or not the system has become active.

Test Description

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

  1. This step determines if the DDM recognizes the lockout switch input.

    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.

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

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. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With the scan tool, observe the power Window Lockout Sw. parameter in the Driver Door Module, Data Display, Inputs list.
  4. Momentarily press the window lockout switch button.
  5. Momentarily press the window lockout switch button again.

Did the parameter change momentarily from Idle to Active with each press of the switch button?

Go to Step 4

Go to Step 6

4

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

Does the lockout indicator LED illuminate and go out with each succeeding press of the switch button?

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