DESCRIPTION AND OPERATION
RANGE ROVER 4.11
V8
Power Distribution
Feed from the positive battery terminal (C0192) is supplied to the following on an R wire:
l Fusible link 2.
l Fuse 18.
l Fuse 25.
l Fuse 53.
All are located in the passenger compartment fuse box (C0632).
Fusible link 2 (C0591) provides a constant battery feed to the immobilisation ECU (C0059)
on an R wire. Fuse 18 (C0584) provides a constant battery feed to the immobilisation ECU
(C0059) and the steering column interlock ECU (C2055) on a pair of RY wires.
Fuse 53 (C0583) provides a constant battery feed to the ignition switch (C0028) on an R
wire. When the ignition switch is turned to the 'auxiliary' position, current flows across the
switch (C0028) to fuse 39 of the passenger compartment fuse box (C0585) on a PB wire.
Fuse 39 (C0587) provides an auxiliary ignition feed to the immobilisation ECU (C0059) and
the steering column interlock ECU (C2055) on a pair of PB wires.
When the ignition switch is turned to the 'ignition' position, current flows across the switch
(C0028) to fuse 31 of the passenger compartment fuse box (C0585) on a G wire. Fuse 31
(C0587) provides an ignition feed to the steering column interlock ECU (C2055) on a GB
wire.
Fuse 25 of the passenger compartment fuse box (C0583) provides a constant battery feed
to the ignition switch (C0028) on an RU wire. When the ignition switch is turned to the 'crank'
position, current flows across the switch (C0028) to the Engine Control Module (ECM)
(C0331) on a BY wire.
Steering Column Interlock ECU
The steering column interlock ECU (C2055) receives the following power supplies:
l A constant battery feed from fuse 18 of the passenger compartment fuse box (C0584)
on an RY wire.
l An auxiliary ignition feed from fuse 39 of the passenger compartment fuse box (C0587)
on a PB wire.
l An 'ignition on' feed from fuse 31 of the passenger compartment fuse box (C0587) on
a GB wire.
The ECU is earthed on an NB wire.
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