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This table provides the standard Lucas wire colour codes used in Series Land Rovers (British Standard BS-AU7 determines colour coding of automobile wiring). I have added the Lucas codes for accessories that might be added to a series Land Rover, such as rear fog lamps, a rear window wiper and washer, driving lamps, radio and electric fan.
Please note that Land Rovers built to military specifications use a different wire colour code.
Black
All ground connections
Black/ Purple
Temperature switch to warning light
Black/ Green
Relay to radiator fan motor
Black/ Light green
Brake switch
Black/ Light green
Brake differential pressure valve to warning light
Blue
Headlamp connections
Blue
Headlamp switch to dimmer switch
Blue White
Headlight high beams
Blue/ White
High beam dimmer switch to high beam indicator lamp
Blue/ White
Dimmer switch to long-range driving light switch
Blue/ Red
Headlight low beams
Brown
Main feed from the battery. No switches or fuses
Brown/Yellow
GEN to volt. Regulator
Brown/ Blue
power feed to headlamp switch
Brown/ White
Ammeter to main alternator terminal
Brown/ Yellow
Long-range driving light switch to lamp
Brown/ Yellow
Alternator to 'no charge' warning light
Brown/ Purple
Alternator Regulator feed
Brown/ Green
Fuse to horn (No relay)
Brown/ Lt. Green
Windscreen wiper motor to switch
Brown/ Black
Horn to horn button (no relay)
Green
Ignition switch controlled wiring for auxiliary devices, eg wipers, flashers, etc
Green/ Black
Fuel gauge to fuel tank unit
Green/ Blue
Water temperature gauge to temperature sender unit
Green/ Brown
Switch to reverse lamp
Green/ Red
Direction indicator switch to left-hand flasher lamps
Green/ Purple
Stop lamp switch to stop lamps
Green/ White
Direction indicator switch to right hand flasher lamps
Green/ Yellow
Heater switch to slow speed on heater motor or for single speed motor
Green/ Gray
Heater switch to high speed on heater motor
Green/ Orange
Low fuel level switch to warning light
Light green
voltage stabilizer to instruments
Light green/ Black
Windscreen washer switch to motor
Light green/ Blue
Flasher switch to left-hand flasher warning light
Light green/ Brown
Flasher switch to flasher unit
Light green/ Purple
Flasher unit to flasher warning light
Light green/ Orange
Rear window washer switch to motor
Orange
Wiper circuit
Orange/ Black
Wiper switch to to motor parking
Orange/ Blue
wiper switch to low speed on motor
Orange/ Green
Wiper switch to high speed on motor
Orange/ Yellow
Rear wiper switch to rear wiper motor
Orange/ Light green
switch to rear window motor parking
Purple
Accessories fed direct from battery via fuse (Always live)
Purple/ Brown
Horn fuse to horn relay when horn is fused separately
Purple/ Red
Switches to map light, under bonnet light, glove box light and boot lamp when fed direct from battery fuse
Red
Tail lights, instrument lights, parking lights and side markers
Red/ Yellow
Fog light switch to fog light or front fog light fuse to fog lights
Red/ Blue
Front fog light fuse to fog light switch
Red/ Brown
Rear fog guard switch to lamps
Red Orange
Power to rear fog guard lamp fuse
Red/ White
Fuse to instrument lamp switch, Instrument panel lamps
White
Ignition circuit, no additional switches, not fused
White
Power to coil
White/ Black
Ignition coil to distributor
White/ Black
Distributor side of coil to tech impulse sensor
White/ Brown
Oil pressure switch to warning light or gauge
White/ Pink
Ignition switch to radio fuse
White/ Red
Ignition switch or starter switch to starter solenoid
Yellow
Generator connections wired through the ignition switch
Yellow/ Green
Dynamo 'F' to control box 'F' Alternator field 'F' to control box 'F'
Este es el link:
http://www.expeditionlandrover.info/Lucaswirecode.htm
Carlos Duarte
Santana IIA 88"
1970