LR3/Disco 3
The interior lighting system comprises the following interior lamps:
Interior lamps
Map reading lamps
Glove compartment lamp
Luggage compartment lamps
Vanity mirror lamps
Footwell lamps
Puddle lamps
Ignition switch illumination
Interior Bulb/Type Rating
The following table shows the bulbs used for the interior lighting system and their type and specification.
CENTRAL JUNCTION BOX
The Central Junction Box (CJB) is an integrated unit located behind the instrument panel on the passenger side of the
bulkhead. The CJB contains fuses, relays and a number of microprocessors which control the power supply and
functionality of the interior lighting system and other vehicle systems.
The interior lamps are controlled by the CJB and have two modes of operation: manual and automatic. In the manual
mode the interior lamps can be switched on and off using the momentary and latching switches adjacent to each lamp or
disabled completely using the same switches. In the automatic mode the interior lamp functionality is controlled by the
CJB on receipt of various input signals.
Input signals
The CJB receives the following inputs which affect the operation of the interior lamps:
Ignition switch
Door switches
Tailgate switch
Glove compartment lamp switch
Unlock signal
Interior lamp switches
Map reading lamp switches
Battery saver relay
Vanity mirror lamp switches
Circuit Protection
The CJB provides circuit protection for all interior lamp circuits. The following interior lamp circuits are protected by Field
Effect Transistors (FETS):
Luggage compartment lamps
Footwell lamps
Ignition switch glow ring
Puddle lamps.
Bulb
Type
Rating
Front and rear interior lamps
Capless
5W
Front and rear map reading lamps
Capless
5W
Luggage compartment lamp
Capless
5W
Vanity mirror lamps
Festoon 14V 0.1A (0.14W)
Door puddle lamps
Capless
5W
Lower instrument panel footwell lamps Capless
5W
Glove compartment lamp
Festoon
5W
