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Range Rover L322 User Manual Page 109

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DESCRIPTION AND OPERATION
4.84 RANGE ROVER
INTERIOR LAMPS
DESCRIPTION
General
Operation of the interior lamps is controlled by the Body Control Unit (BCU) which is located
beneath the front passenger seat.
The interior lamps have two modes of operation; automatic or manual. In the automatic
mode the interior lamp functionality is controlled by the BCU on receipt of various input
signals. In manual mode, the lamps can be switched on and off using the non-latching switch
adjacent to the front interior lamp, or can be disabled completely using the same switch.
For more information on interior lamp functionality, refer to the Lighting section of the
System Description and Operation Workshop manual.
OPERATION
Power Distribution
Feed from the positive battery terminal (C0192) is supplied to fuse 17, fuse 27 and fuse 53
of the passenger compartment fuse box (C0632) on an R wire. Fuse 17 is connected to the
door lamp module, which is also located in the passenger compartment fuse box.
Fuse 27 (C0582) provides a constant battery feed to the Body Control Unit (BCU) (C0662)
on an RP wire.
Fuse 53 (C0583) provides a constant battery feed to the ignition switch (C0099 on Td6
vehicles, C0028 on V8 vehicles) on an R wire. When the ignition switch is turned to the
'auxiliary' position, current flows across the switch (C0099 on Td6 vehicles, C0028 on V8
vehicles) to fuse 42 of the passenger compartment fuse box (C0585) on a PB wire. Fuse 42
(C0586) provides an auxiliary ignition feed to the RH (C0736) and LH (C0737) vanity mirrors
on a pair of PS wires.
When the ignition switch is turned to the 'ignition' position, current flows across the switch
(C0099 on Td6 vehicles, C0028 on V8 vehicles) to fuse 4 of the passenger compartment
fuse box (C0585) on a G wire. Fuse 4 provides an ignition feed to the door lamp module,
which is also located in the passenger compartment fuse box.
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Lee 18 Apr 2024 | 04:50:09

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