Schematic Reference: Door Lock/Indicator Schematics

Did you perform the Door System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Door Systems

Verify that the door ajar indicator inoperative 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

1. Install a scan tool.
2. Close all the doors.
3. With a scan tool, observe the door ajar switches parameter in the Body Control Module Input data list.
4. Open, then close each door, one door at a time.

Did the scan tool display Active when any of the doors were open?

Go to Step 4

Go to Step 5

1. Close all the doors.
2. With a scan tool, observe the driver door open sw., the passenger door open sw. and the rear door open switch parameters in the Body Control Module Input data list.
3. Open, then close each door, one door at a time.

Did the scan tool display Active when any of the doors were open?

Go to Step 10

Go to Step 6

1. Disconnect the body control module (BCM) harness connector C2.
2. Probe the door ajar switch signal circuit with a test lamp connected to battery positive voltage.
3. Open, then close each door, one door at a time.

Did the test lamp illuminate when any of the doors were open?

Go to Step 11

Go to Step 7

1. Disconnect the body control module (BCM) harness connector C2.
2. Probe each of the appropriate door open switch signal circuits with a test lamp connected to battery positive voltage.
3. Open, then close each of the appropraite doors, one door at a time.

Did the test lamp illuminate when any of the doors were open?

Go to Step 11

Go to Step 8

Test the door ajar 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 16

Go to Step 9

Test the appropriate 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 16

Go to Step 9

Test the ground circuit of the appropriate door ajar switch for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 12

Inspect for poor connections at the harness connector 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 16

Go to Step 13

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 16

Go to Step 14

Inspect for poor connections at the harness connectors of the appropriate door ajar 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 16

Go to Step 15

Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Did you complete the replacement?

Go to Step 16

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

Did you complete the replacement?

Go to Step 16

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Replace the appropriate door ajar switch. Refer to Front Side Door Lock Replacement or Rear Door Lock Replacement .

Did you complete the replacement?

Go to Step 16

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2