MAIN	TRACER	PURPOSE	
Black		All earth connections	
Black	Brown	Tachometer generator to tachometer	
Black	Blue	Tachometer generator to tachometer	
Black	Red	Electric or electronic speedometer to sensor	
Black	Purple	Tempreature switch to warning light	
Black	Green	Relay to radiator fan motor	
Black	Light green	Vacuum brake switch or brake differential pressure valve to warning light and/or buzzer	
Black	White	Brake fluid level warning light to switch and handbrake swith, or radio to speakers 	
Black	yellow	Electric speedometer	
Black	Orange	Radiator fan motor to thermal switch 	

MAIN	TRACER	PURPOSE	
Blue		Lighting switch (head) to dip switch	
Blue	Brown	Headlamp relay to headlamp fuse	
Blue	Red	Dip switch to headlamp dip beam fuse	
		Fuse to right-hand dip headlamp	
Blue	Light green	Headlamp wiper motor to headlamp wash pump motor	
Blue	White	a) Dip switch to headlamp main beam fuse	
		b)Headlamp flasher to main beam fuse	
		c)Dip switch main beam warning light	
		d)Dip switch to long-range driving light switch	
Blue	Yellow	Long-range driving light switch to lamp	
Blue	Black	Fuse to right-hand main headlamp	
Blue	Pink	Fuse to left-hand dip headlamp	
Blue	Slate	Headlamp main beam fuse to left-hand headlamp or inboard headlamps when independently fused	
Blue	Orange	Fushe to right-hand dip headlamp	

MAIN	TRACER	PURPOSE	
Brown		Main battery lead	
Brow	Blue	Control box (compensated voltage control only) to ignition switch and lighting switch (feed)	
Brown	Red	Compression ignition starting aid to switch	
		Main battery feed to double pole ignition switch	
Brown	Purple	Alternator regulator feed	
Brown	Green	Dynamo 'F' to controlboxl 'F'	
		Alternator field 'F' to control box 'F'	
Brown	White	Ammeter to control box	
		Ammeter to main alternator terminal	
Brown	Yellow	Alternator to 'no charge' warning light	
Brown	Black	Alternator battery sensing lead	
Brown	Slate	Starter relay contact to starter solenoid	
Brown	Orange	Fuel shut-off (diesel stop) 	

MAIN	TRACER	PURPOSE	
Green		Accessories fuesed via ignition switch	
Green	Brown	Switch to reverse lamp	
Gree	Blue	Water temperature gauge to temperature unit	
Green	Red	Direction indicator switch to left-hand flasher lamps	
Green	Purple	Stop lamp switch to stop lamps, or stop lamp switch to lamp failure unit	
Green	Light green	Hazard flasher unit to hazard pilot lamp or lamp failure unit to stop lamp bulbs	
Green	White	Direction indicator switch to right hand flasher lamps	
Green	Yellow	Heater motor to switch single speed (or to 'slow' on tow- or three-speed motor)	
Green	Black	Fuel gauge to fuel tank unit or changeover switch or voltage stabilizer to tank units	
Green	Pink	Fuse to flasher unit	
Green	Slate	a)Heater motor to switch ('fast' on two- or three-speed motor)	
		b)Coolant level unit to warning light	
Green	Orange	Low fuel level switch to warning light	

MAIN	TRACER	PURPOSE	
Light green		Instrument voltage stabilizer to instruments	
Light green	Brown	Flasher switch to flasher unit	
Light green	Blue	a)Flasher switch to left-hand flasher warning light	
		b)Coolant level sensor to control unit	
		c)Test switch to coolan level control unit	
Light green	Red	Fuel tank changeover switch to right-hand tank unit or entry and exit door closed switch to door actuator	
Light green	Purple	Flasher unit to flasher warning light	
Light green	Green	Start inhibitor relay to change speed switch; or switch to heater blower motor second speed on three-speed unit	
Light green	White	Low air pressure switch to buzzer and warning light	
Light green	Yellow	Flasher switch to right-hand warning light; or differential lock switch to differential lock warning light	
Light green	Black	Front screen jet switch to screen jet motor	
Light green	Slate	Fuel tank changeover switch to left-hand tank unit; or entry and exit door open switch to door actuator	
Light green	Orange	Rear window wash switch to wash pump; or cab lock-down switch to warning light 	

MAIN	TRACER	PURPOSE	
Orange		Wiper circuits fused via ignition switch	
Orange	Blue	Switch to front screen wiper motor first speed timer or intermittend unit	
Orange	Green	Switch to front screen wiper motor second speed	
Orange	Black	Switch to front screen wiper motor parking cicuit, timer or intermittent unit	
Orange	Purple	Timer or intermittent unit to motor parking circuit	
Orange	White	Timer or intermittent unit to motor parking circuit	
Orange	Yellow	Switch to headlamp or rear window wiper motor feed, timer or relay coil	
Orange	Light green	Switch to headlamp or rear window wiper motor parking circuit timer or relay coil	
Orange	Pink	Timer or relay to headlamp or rear window wiper motor feed	
Orange	Slate	Timer or relay to headlamp or rear window wiper motor parking circuit	
Pink	white	Ballast terminal to ignition distributor	

MAIN	TRACER	PURPOSE	
Purple		Accessories fed direct from battery via fuse	
Purple	Brown	Horn fuse to horn relay when horn is fused separately	
Purple	Blue	Fuse to heated rear window relay or switch and warning light	
Purple	Red	Switches to map light, under bonnet light, glove box light and boot lamp when fed direct from battery fuse	
Purple	Green	Fuse to hazard flasher	
Purple	Light green	Fuse to relay for screen demist	
Purple	White	Interior lights to switch (subsidiary circuit door safety lights to switch)	
Purple	Yellow	Horn to horn relay	
Purple	Black	Horn to horn relay to horn push	
Purple	Pink	Rear heated window to switch or relay	
Purple	Slate	Aerial lift motor to switch up	
Purple	Orange	Aerial lift motor to switch down	

MAIN	TRACER	PURPOSE	
Red		Main feed to all circuits mastered by sidelamp switch	
Red	Brown	Rear fog guard switch to lamps	
Red	Blue	Front fog lamp fuse to fog lamp switch	
Red	Purple	Switches to map light, under bonnet light, glove box light and boot lamp when sidelamp circuit fed	
Red	Green	Bulb failure unit to right-hand-side and rear lamps	
Red	White	a)Sidelamp fuse to right-hand side and rear lamps	
		b)Sidelamp fuse to panel light rheostat	
		c)Fuse to panel light switch or rheostat	
		d)Fuse to fibre optic source	
Red	Yellow	Fog lamp switch to fog lamp or front fog fuse to fog lamps	
Red	Blakc	Left-hand,sidelamp fuse to side and tail lamps and number plate illumination	
Red	Pink	Sidelamp fuse to lighting relay	
Red	Slate	Lamp failure unit to lef-hand side and tail lamps	
Red	Orange	Fusebox to rear fog guard switch	
Slate		Window lift main lead	

MAIN	TRACER	PURPOSE	
White		Ignition switch or starter solenoid to ballast resistor	
White	Brown	Oil pressure switch to warning light or gauge, or starter relay to oil pressure switch	
White	Blue	Choke switch to choke solenoid (unfused) and/or choke to switch to warning light, or electronic ignition distributor to drive resistor	
White	Red	Starter switch to starter solenoid or inhibitor switch or starter relay or ignition (start position) to bulb failure unit	
White	Purple	Fuel pump no 1 or right-hand to changeover switch	
White	Green	Fuel pump no 2 or left-hand to changeover switch	
White	Light green	Start switch to starter interlock or oil pressure switch to fuel pump or start inhibitor switch to starter relay or solenoid	
White	Yellow	Ballast resistor to coil or starter solenoid to coil	
White	Black	Ignition coil contact breaker to distributor contact breaker, or distributor side of coil to voltage impulse tachometer	
White	Pink	Ignition switch to radio fuse	
White	Slate	Current tachometer to ignition coil	
White	Orange	Hazard warning lead to switch	
Yellow		a)Overdrive	
		b)Petrol injection	
		c)Door locks	
		d)Gear selector switch to start