Courtesy Lamps Inoperative with Doors Open. Pontiac Grand Prix 1999

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Courtesy Lamps Inoperative with Doors Open

Step

Action

Value(s)

Yes

DEFINITION: The courtesy lights do not turn on when any door is open.

Was the Interior Lights System Check performed?

Was the BCM Diagnostic System Check performed?

Close all the vehicle doors.
Enter the BCM Input/Output test. Refer to Body Control Module Diagnostic Information in Body Control System.
Open, then close each door, one at a time. Listen to the chime.

Does the chime sound when opening each door?

•	Inspect the BCM connector for poor terminal contact. Perform repairs as needed.

•	If the BCM connector is OK, then replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

Is the door the driver's door?

Does the test light illuminate?

Open any passenger door. Do not use the driver's door.
Using a test light backprobe between B+ and the body control module (BCM) connector C2 terminal C3.

Does the test light illuminate?

Repair the poor connection or open in circuit 49.

Is the repair complete?

Repair the poor connection or open in circuit 159.

Is the repair complete?

Turn the ignition switch to the OFF position.
Reinstall the connectors and components that were removed.
Turn the ignition switch to the RUN position for 6 seconds.
Turn the ignition switch to the OFF position.
Remove the MALL PGM fuse.
Turn the ignition switch to the ACC position. (The BCM sounds the chime a number of times equivalent to the BCM type installed on the vehicle).
Within one second, turn the ignition switch from the ACC position, to the OFF position, then back to the ACC position. (The BCM sounds any DTCs stored).

Are there any BCM DTCs present?