Instrument Cluster and Panel Illumination

Instrument Cluster and Panel Illumination

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

Illumination is used to provide backlighting to the dimmable and non-dimmable switches and control components.

If the exterior lamps are activated during daytime sunload conditions by the autolamp system, the Instrument Panel Cluster (IPC) message center (non-Hybrid) or the Liquid Crystal Display (LCD) (Hybrid), Audio Control Module (ACM), Front Controls Interface Module (FCIM), Front Display Interface Module (FDIM), the HVAC module and switch illumination remain at full intensity and do not dim from the instrument panel dimmer switch during this condition. If the vehicle travels under a bridge or a tunnel, the low level of ambient light causes the illumination level of the IPC message center (non-Hybrid) or the LCD (Hybrid), the ACM, the FCIM, the FDIM, the HVAC module and switches to change to the level set by the instrument panel dimmer switch. The IPC message center (non-Hybrid) or the LCD (Hybrid), the ACM, the FCIM, the FDIM, the HVAC module and switch illumination change back to full intensity when the intense ambient light is restored.

Dimmable Backlighting

The dimmable switches and components are illuminated when the parking lamps are ON. The digital dimmer switch is a double detent rocker switch used to control all dimmable interior illuminated components, and to control the courtesy lamps. The first up detent increases dimmable backlighting intensity. The first down detent decreases dimmable backlighting intensity.

The second up detent turns on the courtesy lamps. The second down detent turns the courtesy lamps off unless other features are still requesting the courtesy lamps on.

The dimmable switches and components consist of:

- Ambient lighting/traction control switch (if equipped) (Fusion/Milan)
- Ambient lighting select switch (if equipped) (MKZ)
- Ambient lighting dimmer switch (if equipped) (MKZ)
- Audio Control Module (ACM)
- Luggage compartment lid release switch
- Door lock control switches (MKZ)
- Front Controls Interface Module (FCIM)
- Front Display Interface Module (FDIM)
- Hazard flasher lamp switch (Fusion/Milan)
- Headlamp switch
- HVAC module
- Instrument Panel Cluster (IPC)
- Instrument panel dimmer switch
- Memory set switch (MKZ)
- Message center switch (Fusion/Milan)
- Speed control switches
- Steering wheel audio control switches
- Floor shifter
- Window control switches (MKZ)

Non-Dimmable Backlighting

The non-dimmable lighting switches and components are illuminated when the accessory delay relay is energized. The non-dimmable switches and components are illuminated at full lamp intensity. The non-dimmable lighting switches and components consist of:

- Cigar lighter (MKZ)
- Door lock control switches (Fusion, Milan)
- Roof opening panel switch (if equipped)
- Window control switches (Fusion, Milan)