GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2000 🢒 DeVille 🢒 Body and Accessories 🢒 Doors 🢒 Power Windows Inoperative from Driver Door Switch

Test Description

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

  1. Checks driver door switch asembly operation.

    2.

  2. Checks for window switch input recognition by the each door module.

    3.

  3. Checks driver door switch assembly connector for intermittent open connections.

Step

Action

Value(s)

Yes

No

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

1

Did you perform A Diagnostic System Check - Power Door Systems?

--

Go to Step 2

Go to Diagnostic System Check - Power Door Systems

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. With the scan tool, observe the Driver Door Sw.-LF Win, RF Win, RR Win, and LR Win parameters in the Driver Door Switch Inputs list.
  4. Activate each power window switch on the driver door switch assembly.

Do all parameters change to the up, down, and express states as expected?

--

Go to Step 3

Go to Step 4

3

With the scan tool, observe the Window Motor parameter in each doors Door Module Outputs list while activating each corresponding window switch from the driver door switch assembly.

Does each Window Motor parameter change to the Up, Down, and Idle states as expected?

--

Go to Symptoms

Go to Power Windows Inoperative - One

4

Inspect for poor connections/terminal tension at the driver door switch assembly harness connector. 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 6

Go to Step 5

5

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

Did you complete the replacement?

--

Go to Step 6

--

6

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2