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:

- SJB
- Liftgate/Trunk Module (LTM) (if equipped)
- Instrument panel dimmer switch
- Interior/map lamps
- Puddle lamps
- Cargo lamp
- Vanity mirror lamps
- Door ajar switches
- Liftgate ajar switch

The interior lighting system consists of 2 subsystems:

- Courtesy lamps
- Demand lamps

Courtesy Lamps

The courtesy lamp subsystem consists of the interior dome lamps, the instrument panel dimmer switch, the overhead console lamps, the cargo lamp, and the puddle lamps (if equipped). The SJB supplies voltage to the courtesy lamps when the SJB receives the required input.

Interior Lighting Delay

The interior lighting delay feature provides temporary illumination of the courtesy lamps after the doors are opened and then closed. The interior lighting delay feature keeps 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 if the vehicle is locked using the Remote Keyless Entry (RKE) or the keypad, the courtesy lamps are turned off.

Illuminated Entry

The illuminated entry requests the courtesy lamps to illuminate when the ignition is OFF and either the RKE transmitter UNLOCK button is pressed, or the vehicle is unlocked using the keypad. The illuminated entry requests the courtesy lamps off:

- after 25 seconds have elapsed.
- the ignition is switched out of OFF.
- the RKE transmitter LOCK button is pressed.
- the vehicle is locked using the keypad or door lock cylinder.

Illuminated Exit

The illuminated exit requests the courtesy lamps to illuminate 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 or liftgate becomes ajar.
- 25 seconds have elapsed.

Theater Lighting

The theater lighting option 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 interior lighting deactivation is requested by any feature other than the panic alarm or battery saver.

Demand Lamps

The demand lamps subsystem consists of the front map lamps, and the left and right vanity mirror lamps. The demand lamps are provided voltage from the battery saver relay (integrated into the SJB) when the battery saver relay is energized.

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 after a 10-minute time-out period in order to save battery voltage. A timer in the SJB is started when the ignition is turned to the OFF position and all the doors and liftgate are closed. When 10 minutes have elapsed, voltage is automatically shut off to the lamps by the SJB.