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Technical Notes and Parts Information

LUCAS WIRING COLOUR CODE

Black

All ground connections

Black / Green

Relay to radiator fan motor

Blue

Headlight switch to dimmer switch

Blue / White

Headlight high beams

Blue / White

High beam dimmer switch to 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

Generator to voltage 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 / Black

Horn to horn button (no relay)

Green

Ignition circuit, additional switches or fused

Green / Black

Fuel gauge to fuel tank unit

Green / Blue

Water temperature gauge to temperature sender unit

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 heater 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

Purple

Accessories fed direct from battery via fuse

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 and side markers

Red / Yellow

Fog light switch to fog light or fog light fuse to fog lights

Red / Blue

Front fog light fuse to fog light switch

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 / Brown

Oil pressure switch to warning light

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 controlbox 'F' Alternator field 'F' to control box 'F'


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Ken Yankey © 2002
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