Interior Lighting

Interior Lighting

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).

The SJB controls all of the interior lighting functions. The interior lighting system consists of the following components:

- Door ajar switches
- Instrument panel dimmer switch
- Interior/map lamps
- Cargo lamp
- Vanity mirror lamps
- SJB

The interior lighting system consists of 2 subsystems:

- Courtesy lamps
- Demand lamps

Courtesy Lamps

The courtesy lamp subsystem consists of the ajar switches, interior lamps, cargo lamp(s), instrument panel dimmer switch and the SJB. The SJB supplies voltage to the courtesy lamps when the SJB receives an input that requests the courtesy lamps on.

Stripped chassis vehicles do not utilize the courtesy lamp system.

Illuminated Entry

The illuminated entry feature turns the parking lamps, the dimmable lighting and the courtesy lamps on to illuminate the interior of the vehicle when the ignition is OFF and the RKE transmitter UNLOCK button is pressed. The illuminated entry turns the parking lamps, the dimmable lighting and the courtesy lamps off when any of the following occur.

- After 25 seconds have elapsed.
- The ignition is switched out of OFF.
- The RKE transmitter LOCK button is pressed.

Illuminated Exit

The illuminated exit turns the parking lamps, the dimmable lighting and the courtesy lamps on for 25 seconds when all doors are closed and the ignition key is removed from the ignition lock cylinder. The illuminated exit deactivates:

- when the ignition key is inserted into the ignition lock cylinder.
- a door becomes ajar.
- 25 seconds have elapsed.

Interior Lighting Delay

The interior lighting delay feature provides temporary illumination of the parking lamps, the dimmable lighting and the courtesy lamps after the doors are opened and then closed. The interior lighting delay feature keeps the parking lamps, the dimmable lighting and the courtesy lamps on for a period of 25 seconds after all the doors are closed. If during the 25-second delay time the SJB detects that the ignition has been turned out of OFF or the vehicle is locked using the RKE transmitter, the parking lamps, the dimmable lighting and the courtesy lamp illumination is turned off.

Theater Lighting

The theater lighting feature ramps-up the courtesy lamps over 0.7 second when courtesy lamp activation is requested. The theater lighting feature ramps-down the courtesy lamps over 1.7 seconds when courtesy lamp deactivation is requested by any feature other than the panic alarm or battery saver.

Demand Lamps

The demand lamps are provided voltage from the battery saver relay (internal to the SJB). The demand lamps subsystem consists of the map/reading lamps, and the LH and RH vanity mirror lamps. The SJB energizes the battery saver relay to supply voltage to the demand lamps

Battery Saver

NOTE: Time-out is 1 minute if the vehicle has less than 80 km (50 miles).

The SJB provides automatic shut-off of the demand lamps and courtesy lamps 10 minutes after the ignition switch is turned to the OFF position in order to save battery voltage.