DESCRIPTION AND OPERATION
4.32 RANGE ROVER
OPERATION
Power Distribution
Feed from the positive battery terminal (C0192) is supplied to the fuse holder (C1875) on an
R wire. A constant battery feed is also supplied to fusible link 2 and fuse 53 of the passenger
compartment fuse box (C0632) on an R wire.
The 100A fuse located in the fuse holder (C1875) provides a constant battery feed to the
glow plug timer (C0189) on an R wire. A second 100A fuse in the fuse holder (C1875)
provides a constant battery feed to the Engine Control Module (ECM) relay (C1895) on an
R wire.
Fuse 53 of the passenger compartment fuse box (C0583) provides a constant battery feed
to the ignition switch (C0099) on an R wire. When the ignition switch is turned to the 'ignition'
position, current flows across the switch (C0099) to fuse 5 of the passenger compartment
fuse box (C0585) on an G wire. Fuse 5 (C0587) provides an ignition feed to the alternator
(C0053) on a GW wire.
Fusible link 2 of the passenger compartment fuse box (C0591) is connected to the ignition
switch (C0099) by an R wire. When the ignition switch is turned to the 'crank' position,
current flows across the switch (C0099) to the immobilisation ECU (C0059) on a BY wire.
Starting
ECM Relay
The ECM relay coil (C1895) is provided a constant battery feed from the 100A fuse located
in the fuse holder (C1875) on an R wire. The earth path for the relay coil (C1895) is
controlled by the ECM (C0603) on an N wire. If the ECM has received a valid 'remobilisation'
signal from the immobilisation ECU, it will energise the ECM relay. The energised ECM relay
(C1895) provides a feed to fuse 2 of the engine compartment fuse box (C0570) on an RW
wire. Fuse 2 (C0570) is connected to the glow plug timer (C0190) by an R then RW wire.
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