Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Power Door Systems Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

Verify that the door ajar indicator malfunction fault is present.

Does the door ajar indicator operate normally?

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

Go to Step 3

Is the door ajar indicator ON all the time?

Go to Step 4

Go to Step 8

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 driver door open switch and the door ajar switches parameters in the body control module (BCM) data list.

Does the scan tool display Open for either of the parameters?

Go to Step 5

Go to Step 16

Was the Open parameter the driver door open Switch parameter?

Go to Step 6

Go to Step 7

1. With a scan tool, observe the driver door open switch parameter in the BCM data list.
2. Disconnect the driver door lock C1 harness connector.

Does the scan tool display Closed when the harness connector is disconnected?

Go to Step 17

Go to Step 11

1. With a scan tool, observe the Door Ajar Switches parameter in the BCM data list.
2. Disconnect each of the passenger door lock C1 harness connectors, one at a time.

Does the scan tool display Closed when any of the harness connectors is disconnected?

Go to Step 17

Go to Step 12

Is the door ajar indicator inoperative from the driver door?

Go to Step 9

Go to Step 10

1. Turn OFF the ignition.
2. Disconnect the driver door lock C1 harness connector.
3. Connect a 3-amp fused jumper wire between the driver door ajar switch signal circuit of the driver door lock C1 harness connector and the ground circuit of the driver door lock C1 harness connector.

Does the door ajar indicator illuminate?

Go to Step 13

Go to Step 14

1. Turn OFF the ignition.
2. Disconnect the inoperative passenger door lock C1 harness connector.
3. Connect a 3-amp fused jumper wire between the door open switch signal circuit and the ground circuit.

Does the door ajar indicator illuminate?

Go to Step 13

Go to Step 15

Test the driver door ajar switch signal circuit of the driver door lock C1 harness connector 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 22

Go to Step 18

Test the door open switch signal circuit of the inoperative door lock C1 harness connector 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 22

Go to Step 18

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

Did you find and correct the condition?

Go to Step 22

Go to Step 17

Test the driver door ajar switch signal circuit of the driver door lock C1 harness connector for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 22

Go to Step 18

Test the door open switch 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 22

Go to Step 18

Inspect for poor connections at the harness connectors of the instrument panel cluster (IPC). 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 22

Go to Step 19

Inspect for poor connections at the harness connectors of the inoperative 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 22

Go to Step 20

Inspect for poor connections at the harness connectors of the 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 22

Go to Step 21

Replace the IPC. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 22

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Replace the inoperative door lock switch. Refer to Front Side Door Lock Replacement or Rear Door Lock Replacement .

Did you complete the replacement?

Go to Step 22

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Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 22

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2