Door Ajar Indicator Malfunction. Pontiac Demonstrator 1985

For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Door Lock/Indicator Schematics Connector End View Reference: Power Door Systems Connector End Views
1 | Did you perform the Vehicle Diagnostic System Check? | Go to Step 2 | Go to in Vehicle DTC Information
2 | Verify that the door ajar indicator malfunction is present. Does the door ajar indicator operate normally? | Go to in Wiring Systems | Go to Step 3
3 | Is the door ajar indicator ON all the time? | Go to Step 4 | Go to Step 6

4

1. Install a scan tool.
2. Close all of the doors.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the appropriate door ajar switch parameter in the Body Control Module data list.

Does the scan tool display Door Ajar?

Go to Step 5

Go to Step 11

5

1. With a scan tool, observe the appropriate door ajar switch parameter in the Body Control Module data list.
2. Disconnect each of the door lock harness connectors, one at a time.

Does the scan tool display change to Door Closed when any of the door lock harness connectors are disconnected?

Go to Step 12

Go to Step 8

6

1. Install a scan tool.
2. Open all of the doors.
3. Turn ON the ignition, with the engine OFF.
4. With a scan tool, observe the appropriate door ajar switch parameter in the Body Control Module data list.

Does the scan tool display Door Ajar?

Go to Step 11

Go to Step 7

7

1. Turn OFF the ignition.
2. Disconnect the appropriate door lock harness connector.
3. Connect a 3-amp fused jumper wire between the front door ajar switch signal circuit of the appropriate door lock harness connector and a good ground.
4. Turn ON the ignition, with the engine OFF.

Does the door ajar indicator illuminate?

Go to Step 9

Go to Step 10

8 | Test the appropriate front door ajar switch signal circuit of the appropriate door lock harness connector for a short to ground. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13
9 | Test the ground circuit of the appropriate door lock harness connector for an open. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 12
10 | Test the appropriate front door ajar switch signal circuit of the appropriate door lock harness connector for an open. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 13
11 | Inspect for poor connections at the harness connector of the instrument panel cluster. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 14
12 | Inspect for poor connections at the harness connector of the appropriate door lock. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 15
13 | Inspect for poor connections at the harness connector of the body control module. Refer to and in Wiring Systems. Did you find and correct the condition? | Go to Step 17 | Go to Step 16
14 | Replace the instrument panel cluster. Refer to in Instrument Panel, Gages and Console. Did you complete the replacement? | Go to Step 17 | --
15 | Replace the appropriate door lock. Refer to Front Side Door Lock Replacement or . Did you complete the replacement? | Go to Step 17 | --

16

1. Perform the set-up procedure for the body control module. Refer to in Computer/Integrating Systems.
2. Replace the body control module. Refer to in Computer/Integrating Systems.

Did you complete the replacement?

Go to Step 17

--

17 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2