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
- Instrument panel dimmer switch
- Interior/map lamps
- Luggage compartment lamp
- Vanity mirror lamps
- Puddle lamps (if equipped)
- Scuff plate lamps (if equipped)
- Door ajar switches
- Luggage compartment lid ajar switch
- Ambient lighting module (Fusion/Milan) (if equipped)
- Ambient lighting switch (part of the traction control switch for Fusion/Milan) (if equipped)
- Ambient lighting select switch (MKZ (if equipped))
- Ambient lighting dimmer switch (MKZ (if equipped))
- Interior Lighting Control Module (ILCM) (MKZ)

The interior lighting system consists of up to 3 subsystems:

- Courtesy lamps
- Demand lamps
- Ambient lighting (if equipped)

Courtesy Lamps

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

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.

Ambient Lighting - Fusion/Milan

The ambient lighting subsystem consists of the ambient lighting module, ambient lighting select switch, and LEDs located throughout the vehicle. The LEDs are located on the center console cupholders, the storage bin, and the front and rear footwells. The ambient lighting system is powered through the accessory delay relay. The ambient lighting only illuminates when the key is in the on position.

Ambient Lighting - MKZ

The ambient lighting feature provides illumination to the center console cup holders, the storage bin, door map pockets and the front and rear footwells.

There are 4 different color LEDs (red, blue, green and white) housed within each LED assembly. By illuminating various color combinations, the LEDs are able to produce 7 different colors of ambient light. With each press of the ambient lighting select switch, the ILCM cycles through a different color variation. With each press of the ambient lighting dimmer switch, the ILCM changes the brightness setting of the ambient lighting or turns the ambient lighting feature off. The module retains the last color and brightness setting between uses.

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.
- when the ignition is switched to the OFF position.
- when the RKE transmitter LOCK button is pressed.
- when the vehicle is locked using the keypad

Illuminated Exit

NOTE: For late build vehicles, the puddle lamps are not illuminated for the illuminated exit feature.

The illuminated exit requests the courtesy lamps to illuminate for 25 second 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.
- when a door becomes ajar.
- after 25 seconds have elapsed.

Theater Lighting

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

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.