Lucas / BS / Land Rover standard wiring colours [FuddyMuckers]

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====== Lucas / BS / Land Rover standard wiring colours ======

Land Rovers and many other British cars use the "[[http://www.team.net/sol/tech/LucasColours.html|BS-AU7a 1983 Colour Code for Vehicle Wiring]]" or some variations of it.

Thanks to [[https://forums.lr4x4.com/topic/113730-what-does-this-relay-do/?do=findComment&comment=1066542|Monkie]] for posting this on LR4x4.

There's also a PDF on Autosparks website if you want something printable: [[https://www.autosparks.co.uk/media/AutosparksBSCC.pdf|AutosparksBSCC.pdf]]

<code>
A solid colour is from a supply to a switch and a striped colour is switch to component. I have used the standard lucas colour code:

G=green, LG = light green, R=red, U=blue, W=white, O=orange, P=purple, N =brown, B=black, Y=yellow, S=slate(grey), K=pink.
G 	fused ignition on
GR 	left turn signal
GW 	right turn signal
GP 	brake lights
GN 	reverse light
GB 	fuel sender
GY 	heater blower motor switch
GS 	heater blower motor switch
LGG 	oil temperature
LGW 	oil pressure sender
LGB 	screen wash pump
LGP 	trailer warning light
LGN 	hazard switch to flash relay
  	 
R 	running lights
RO 	right side/tail
RB 	left side/tail
RY 	rear fog
RLG 	wiper motor
RW 	gauge & panel illumination
  	 
U 	head lights
UO 	right main
US 	left main
UK 	left dip
UB 	right dip
UG 	wiper motor
  	 
W 	unfused live ignition on
WR 	ignition switch to starter relay
WO 	ignition switch to heater blower fuse and radio
WB 	rear window heater
WS 	fuel sender to guage 
WN 	oil pressure warning lamp
WY 	hand brake warning light
WG 	Heated rear window switch to relay/dash light
  	 
P 	unfused permanent live
PG 	fuse to heater blower motor 
PO 	seat belt warning light (where fitted)
PW 	interior cab light
PU 	door switch (where fitted)
  	 
N 	permanent live from positive terminal bus on starter solenoid
NLG 	wiper motor
NY 	charge warning light
NLG 	flasher relay
NW 	fuse to heated rear window relay
  	 
B 	earth
BU 	diff lock engaged warning light
BW 	brake warning light
BR 	hazard switch illumination
BK 	heated rear window relay to diode
BS 	heated rear window diode to voltage sensitive switch
  	 
YB 	Glowplug Feed 
</code>