Interior Lighting

INTERIOR LIGHTING

NOTE: The smart junction box (SJB) is also known as the generic electronic module (GEM).

The interior lighting system consists of the following:
- Door ajar switches
- Glove compartment lamp assembly
- Illuminated vanity mirrors (if equipped)
- Instrument panel dimmer switch
- Interior/map reading lamp(s)
- Liftgate ajar switch
- Liftgate glass ajar switch
- Liftgate/trunk module (LTM) (if equipped)
- Puddle lamps (if equipped)
- Rear cargo lamp
- SJB

The interior lighting system consists of 2 subsystems:
- Courtesy lamps
- Demand lamps

The courtesy lamps are controlled by the SJB. The courtesy lamp subsystem consists of the ajar switches, the interior dome lamps, the puddle lamps, the roof rail lamps, the cargo lamp, and the overhead console lamps (if equipped). The SJB supplies voltage to the courtesy lamps when the SJB receives the required input.

The demand lamps subsystem consists of the glove compartment lamp, the dimmer switch, the cargo lamp, all map/reading lamps, and the LH and RH vanity mirror lamps.

The SJB supplies power to the interior lighting system. The SJB sets DTCs if certain circuit failures exist with the interior lighting system.