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Published: 11-May-2011Exterior Lighting - Exterior Lighting - System Operation and Component Description Description and Operation
Control Diagram XENON HEADLAMPS - CONTROL DIAGRAM
ItemDescription A = Hardwired; D = High speed CAN bus; N = Medium speed CAN bus
Battery
BJB (battery junction box)
CJB (central junction box)
EJB (engine junction box)
Medium speed CAN (controller area network) bus to other vehicle systems
Headlamp leveling module
Front height sensor
Rear height sensor
RH (right-hand) headlamp assembly
LH (left-hand) headlamp assembly
Lighting control switch - LH steering column multifunction switch
Instrument cluster
HALOGEN HEADLAMPS - CONTROL DIAGRAM
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ItemDescription A = Hardwired; N = Medium speed CAN bus
Battery
BJB
CJB
EJB
Auxiliary lighting switch
RH headlamp assembly
LH headlamp assembly
Lighting control switch - LH steering column multifunction switch
Instrument cluster
SIDE LAMPS/TURN SIGNAL INDICATORS/FOG LAMPS - CONTROL DIAGRAM
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ItemDescription A = Hardwired; N = Medium speed CAN bus; O = LIN bus
Battery
BJB - Megafuse
Stop lamp switch
LH turn signal indicator
RJB (rear junction box)
RH turn signal indicator
RH licence plate lamp
LH licence plate lamp
LH fog lamp
RH fog lamp
High mounted stop lamp
RH tail lamp assembly
LH tail lamp assembly
RH door mirror side repeater
LH door mirror side repeater
RH front door module
Auxiliary lighting switch
LH front door module
Lighting control switch - LH steering column multifunction switch
Rain/light sensor
Instrument cluster
RH headlamp assembly - side lamp and side marker lamp (if fitted)
CJB
LH headlamp assembly - side lamp and side marker lamp (if fitted)
System Operation
CENTRAL JUNCTION BOX (CJB) AND REAR JUNCTION BOX (RJB)
The CJB is an integrated unit which controls body functions and power distribution. The CJB is located on the RH 'A' pillar.
The RJB also controls body functions and power distribution and is located in the RH
side of the luggage compartment.
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