The body control module  (BCM) controls the interior lights based on inputs it receives from the following switches:

Voltage is applied through circuit  149 from the BCM to the following lamps on coupes:

Voltage is applied through circuit  149 from the BCM to the following lamps on convertibles:

The BCM provides a ground through circuit 156 and the lamps illuminate when the following actions occur:

The inside rearview mirror contains switches which provide ground through circuit  750 to allow manual operation of the reading lamps.

Ground is applied from G200 through circuit  650 to the IP compartment lamp. When the IP compartment door is opened, voltage is applied by the BCM through circuit  149 to the IP compartment lamp.

The BCM keeps the interior lights on for approximately 25 second after the doors and rear compartment are closed. The BCM gradually decreases the voltage on circuit 149 until the lamps are off. The lamps immediately go out under either of the following conditions:

The BCM illuminates the courtesy lamps for approximately thirty seconds after the ignition key is removed from the ignition switch. The lamps immediately go out under either of the following conditions:

When the remote control door lock transmitter is used to access the vehicle, the BCM applies voltage through circuit  149 to the interior lights. The lights remain illuminated for approximately 40 seconds or until the ignition is turned to the start position.

The BCM turns off lamps that are left on to conserve battery power. The BCM removes voltage from circuit  149 and all lamps are turned off 10 minutes after the ignition switch is turned to the off position. After the 10 minute period, the BCM turns the lamps back on under any of the following conditions: