GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Intrigue 🢒 Body and Accessories 🢒 Doors 🢒 Power Door Locks Inoperative

Step

Action

Yes

No

Schematic Reference: Door Lock/Indicator Schematics

1

Did you perform the Door System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

2

Verify that the inoperative power door locks fault is present.

Does the power door locks system operate normally?

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

Go to Step 3

3
  1. Connect a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. With a scan tool, observe the door lock switch parameter in the body control module (BCM) Input data list.

Does the scan tool display Inactive?

Go to Step 4

Go to Step 9

4

With a scan tool, observe the door unlock switch parameter in the body control module (BCM) Input data list.

Does the scan tool display Inactive?

Go to Step 5

Go to Step 10

5
  1. With a scan tool, observe the door lock switch parameter in the body control module (BCM) Input data list.
  2. Activate the driver door lock switch , then the front passenger door lock switch to the Lock position.

Does the scan tool display Active when the switches are activated?

Go to Step 6

Go to Step 11

6
  1. With a scan tool, observe the door unlock switch parameter in the body control module (BCM) Input data list.
  2. Activate the driver door lock switch , then the front passenger door lock switch to the Unlock position.

Does the scan tool display Active when the switches are activated?

Go to Step 7

Go to Step 12

7

Are all of the door locks inoperative?

Go to Step 14

Go to Step 8

8

Is the driver door lock the only inoperative lock?

Go to Step 15

Go to Step 16

9

Test the driver door lock switch lock signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

10

Test the driver door lock switch unlock signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

11

Test the driver door lock switch lock signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 13

12

Test the driver door lock switch unlock signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 13

13

Test the ground circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 17

14

Test the door lock actuator control circuits for a short to ground or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 18

15

Test the driver door lock actuator unlock control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 19

16

Test the door lock actuator unlock control circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 23

Go to Step 19

17

Inspect for poor connections at the harness connector of the appropriate door lock switch. 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 23

Go to Step 20

18

Inspect for poor connections at the harness connector of the body control module (BCM). 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 23

Go to Step 21

19

Inspect for poor connections at the harness connector of the appropriate door lock actuator. 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 23

Go to Step 22

20

Replace the appropriate door lock switch. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement .

Did you complete the replacement?

Go to Step 23

--

21

Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 23

--

22

Replace the appropriate door lock actuator. Refer to one of the following procedures:

Did you complete the replacement?

Go to Step 23

--

23

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2