Exterior Lighting: Overview

Exterior Lighting

OVERVIEW
The exterior lighting systems are controlled by the CJB (central junction box) which contains fuses, relays and microprocessors to control the power supply and functionality of the lighting systems.
The CJB (central junction box) controls the following vehicle functions:
- Control and monitoring of exterior lamps including turn signal indicators and hazard warning functionality
- Illumination dimmer control of instrument cluster and all interior switch illumination
- Monitoring and evaluation of check control inputs from other system control modules and output of applicable messages in the instrument cluster message center.
Driver lighting selections using the LH (left-hand) steering column multifunction switch or the auxiliary lighting switch are passed directly to the CJB (central junction box).
The lighting system has an 'auto' lights function which is controlled by the CJB (central junction box) on receipt of signals from the rain/light sensor located at the top of the windscreen. The exterior lights are turned on or off in response to ambient light signals from the rain/light sensor on a LIN (local interconnect network) bus connection to the CJB (central junction box). The auto lights can also be activated when the windshield wipers are activated by signals from the rain sensor, which is located at the top of the windshield or when the driver activates the wipers in the continuous wipe position for more than 10 seconds.
Two levels of headlamp specification are available; xenon or Adaptive Front lighting System (AFS). AFS headlamps feature a cornering lamp or a static bending lamp which illuminates the area at the side of the vehicle when turning into driveways for example. North American Specification (NAS) vehicles have a side marker lamp installed in the headlamp assembly.
The tail lamp comprises the turn signal indicator, side and stop lamps, fog and reverse lamps. A side marker lamp is fitted to the rear fender tail lamp assembly and is fitted in all markets.
An Auto High Beam system can also be fitted which automatically controls the high beam headlamps.
The exterior lighting system comprises the following exterior lamps:
- Front and rear side lamps (LED (light emitting diode)'s)
- License plate lamps
- Side marker lamps (if fitted) (LED (light emitting diode)'s)
- Front and rear turn signal indicator lamps (LED (light emitting diode)'s)
- Turn signal indicator side repeater lamps
- Stop lamps and high mounted stop lamp (LED (light emitting diode)'s)
- Reversing lamps (LED (light emitting diode)'s)
- Rear fog lamps (LED (light emitting diode)'s)
- Static bending/cornering lamps (if fitted - AFS headlamp except NAS) (LED (light emitting diode)'s)
- Bi-xenon headlamps
- Adaptive Front lighting System (AFS) (if fitted).