Operation CHARM: Car repair manuals for everyone.

Interior Lighting

INTERIOR LIGHTING

The interior lighting system consists of the following:
- Smart junction box (SJB)
- Interior/map lamp assembly
- Rail lamps (if equipped)
- Glove compartment lamp assembly
- Dimmer switch
- Illuminated vanity mirrors (if equipped)
- Rear cargo lamp
- Puddle lamps (if equipped)
- Door ajar switches
- Liftgate glass ajar switch

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, the roof rail 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.