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).

The instrument cluster and panel illumination system consists of both dimmable and non-dimmable (fixed) illumination sources. The instrument cluster and panel illumination is used to provide backlighting to the instrument panel, switches, and control components when the parking lamps are on.

For Expedition, the level of intensity is adjustable by rotating the instrument panel dimmer switch either up to increase intensity or down to decrease intensity.

For Navigator, the level of intensity is adjustable by rotating the instrument panel dimmer switch to the right to increase intensity or to the left to decrease intensity.

The dimmable backlighting system provides dimmable backlighting to the following components:
- Adjustable pedal switch (if equipped)
- Ash receptacle (Navigator only)
- Audio control module (ACM)
- Auxiliary climate control assembly
- Heating ventilation air conditioning (HVAC) module
- Clock (Navigator only)
- Door lock control switches (Navigator only)
- Floor shifter (if equipped)
- Four wheel drive (4WD) mode switch (if equipped)
- Headlamp switch
- Instrument cluster
- Message center switch (if equipped)
- Overhead console switches (if equipped)
- Power liftgate/traction control/hazard switch
- Power window control switches (Navigator only)
- Steering wheel control switches

NOTE: If the battery is disconnected or discharged, the instrument panel dimmer switch requires re-calibration. Rotate the instrument panel dimmer switch from the full dim position to the dome ON position. This will make sure that all displays are visible under all lighting conditions.

The fixed backlighting system consists of the following component:
- Door lock control switches (Expedition only)
- Power window control switches (Expedition only)