Important: The instrument panel (IP) courtesy and the door courtesy lamps stay ON under the following conditions:

However, the inadvertent load (battery rundown) protection turns OFF the courtesy lights after 20 minutes.

Did you perform the Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Ensure that the IP dimmer switch is OFF.
2. Close all of the vehicle doors.
3. Turn the ignition switch to the LOCK position.
4. Connect the scan tool
5. Turn the ignition switch to the RUN position.
6. Use the scan tool in order to monitor the status of BATT PWR 3.

Does the scan tool display that the status of BATT PWR 3 is greater than the specified value?

9V

Go to Step 3

Go to Step 5

1. Disconnect then reconnect the BCM connector C2 and connector C3.
2. Turn the ignition switch to the RUN position.
3. Ensure that the IP dimmer switch is OFF.
4. Close all of the vehicle doors.
5. Observe the IP courtesy lamps and the door courtesy lamps.

Are the IP courtesy lamps and the door courtesy lamps OFF?

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Go to Step 4

Go to Step 5

The malfunction is not present at this time. Refer to Interior Lights Circuit Description for more information regarding the operation of the courtesy lights.

Is the action complete?

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Go to Step 6

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Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

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Go to Step 6

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1. Turn the ignition switch to the LOCK position.
2. Reconnect the connectors and reinstall the components that were removed.

Is the repair complete?

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Go to Diagnostic System Check - Lighting Systems

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