Delayed Illumination

The BCM grounds circuit 690 for 22-28 seconds, turning on the interior courtesy lights, when the following conditions are met:
^ The delay illumination is enabled (interior lighting mode 2 or 4). Refer to Interior Lights for more information. Lighting and Horns
^ The ignition switch is in the LOCK or OFF position.
^ The I/P dimmer switch is off.
^ The interior lamps override switch is on (interior courtesy lights enabled).
^ When closing all vehicle doors (the BCM detects a transition from a ground signal to open circuit in circuit 49, 54, or 159.)

The delayed illumination feature is canceled when any of these conditions is present:
^ Turning the ignition switch to the ACC or RUN position.
^ Locking the doors when using either a power door lock switch.
^ Locking the LF, RF or liftgate doors using a door key lock cylinder (BCM type 4 only).
^ Locking the doors using a keyless entry transmitter (BCM types 3 and 4 only).