Did you perform the BCM diagnostic system check?

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Go to Step 2

Go to Diagnostic System Check - Body Control System

1. Close all of the vehicle doors.
2. Ensure that the IP dimmer switch is off.
3. Turn the ignition switch to the RUN position.
4. Open and close each of the vehicle doors.

Do the courtesy lights turn on with a door open and turn off when all of the doors are closed?

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Go to Step 3

Go to Step 5

1. Ensure that the IP dimmer switch is off and that all of the vehicle doors are closed.
2. Turn the ignition switch from the RUN position to the LOCK position.
3. Observe the courtesy lights and remove the key from the ignition key cylinder.

Do the courtesy lights turn on when you remove the key from the ignition key cylinder?

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Go to Step 4

Go to Step 6

1. Turn the ignition switch to the RUN position.
2. Lower all of the vehicle windows. Ensure that all of the windows are completely down.
3. Insert the key in the ignition key lock cylinder.
4. Leave the ignition switch in the LOCK position.
5. Open the driver's door.
6. Observe the door locks and momentarily press LOCK on the door lock switch.
7. Close the driver's door.
8. Open the left rear door.
9. Reach through the driver's window opening. Observe the door locks and momentarily press LOCK on the door lock switch.
10. Open the right front door.
11. Observe the door locks and momentarily press LOCK on the door lock switch.
12. Close the right front door.
13. Open the right rear door.
14. Reach through the right front window opening. Observe the door locks and momentarily press LOCK on the door lock switch.
15. Determine if the doors do not lock when the following conditions exist:

•	You press LOCK on either door lock switch.

•	The key is in the ignition key lock cylinder.

•	A door is open.

Do the door locks operate as described above?

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Go to Step 7

Go to Step 8

The lockout prevention feature is malfunctioning due to a malfunction between the BCM and the driver's door lock ajar switch. Refer to Interior Lamps System Check

Has the repair been made?

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Go to Step 9

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The lockout prevention feature is inoperative due to a malfunction between the BCM and the ignition key alarm switch. Refer to Audible Warnings System Check

Has the repair been made?

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Go to Step 9

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The lockout prevention feature is working as designed. Refer to Power Door Locks Circuit Description

Has the repair been made?

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Go to Step 9

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1. Inspect the BCM connectors for poor terminal contact.
2. If the terminal contact is not poor, replace the BCM. Refer to Body Control Module Replacement in Body Control System.
3. After BCM replacement, perform the Setup New BCM Procedure. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Is the repair complete?

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Go to Step 9

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1. Turn the ignition switch to the LOCK position.
2. Reconnect all of the connectors.
3. Reinstall any components that you removed.

Have all repairs been made?

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Refer to Power Door Locks System Check

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