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Main |
Tracer |
Standard
Usage |
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Black |
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All earth
connections |
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Black |
Blue |
Tachometer
generator to tachometer |
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Black |
Brown |
Tachometer
generator to tachometer |
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Black |
Green |
Relay to
radiator fan motor |
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Black |
Light green |
Vacuum brake
switch or brake differential pressure valve to warning light
and/or buzzer |
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Black |
Orange |
Radiator fan
motor to thermal switch |
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Black |
Purple |
Temperature
switch to warning light |
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Black |
Red |
Electric or
electronic speedometer to sensor |
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Black |
White |
Brake fluid
level warning light to switch and hand brake switch, or radio to
speakers |
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Black |
Yellow |
Electric
speedometer |
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Blue |
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Lighting switch
(head) to dip switch |
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Blue |
Black |
Fuse to
right-hand main headlamp |
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Blue |
Brown |
Headlamp relay
to headlamp fuse |
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Blue |
Light green |
Headlamp wiper
motor to headlamp wash pump motor |
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Blue |
Orange |
Fuse to
right-hand dip headlamp |
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Blue |
Pink |
Fuse to
left-hand dip headlamp |
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Blue |
Red |
Dip switch to
headlamp dip beam fuse
Fuse to right-hand dip headlamp |
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Blue |
Slate |
Headlamp main
beam fuse to left-hand headlamp or inboard headlamps when
independently fused |
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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 |
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Blue |
Yellow |
Long-range
driving light switch to lamp |
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Brown |
Blue |
Control box
(compensated voltage control only) to ignition switch and lighting
switch (feed) |
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Brown |
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Main battery
lead, un-fused |
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Brown |
Black |
Alternator
battery sensing lead |
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Brown |
Green |
Dynamo 'F' to
control box 'F'
Alternator field 'F' to control box 'F' |
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Brown |
Orange |
Fuel shut-off
(diesel stop) |
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Brown |
Purple |
Alternator
regulator feed |
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Brown |
Red |
Compression
ignition starting aid to switch
Main battery feed to double pole ignition switch |
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Brown |
Slate |
Starter relay
contact to starter solenoid |
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Brown |
White |
Ammeter to
control box
Ammeter to main alternator terminal |
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Brown |
Yellow |
Alternator to
'no charge' warning light |
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Green |
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Accessories
fused via ignition switch |
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Green |
Black |
Fuel gauge to
fuel tank unit or changeover switch or voltage stabilizer to tank
units |
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Green |
Blue |
Water
temperature gauge to temperature unit |
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Green |
Brown |
Switch to
reverse lamp |
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Green |
Light green |
Hazard flasher
unit to hazard pilot lamp or lamp failure unit to stop lamp bulbs |
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Green |
Orange |
Low fuel level
switch to warning light |
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Green |
Pink |
Fuse to flasher
unit |
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Green |
Purple |
Stop lamp
switch to stop lamps, or stop lamp switch to lamp failure unit |
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Green |
Red |
Direction
indicator switch to left-hand flasher lamps |
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Green |
Slate |
a) Heater motor
to switch ('fast' on two- or three-speed motor)
b) Coolant level unit to warning light |
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Green |
White |
Direction
indicator switch to right hand flasher lamps |
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Green |
Yellow |
Heater motor to
switch single speed (or to 'slow' on two or three-speed motor) |
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Light green |
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Instrument
voltage stabilizer to instruments |
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Light green |
Black |
Front screen
jet switch to screen jet motor |
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Light green |
Blue |
a) Flasher
switch to left-hand flasher warning light
b) Coolant level sensor to control unit
c) Test switch to coolant level control unit |
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Light green |
Brown |
Flasher switch
to flasher unit |
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Light green |
Green |
Start inhibitor
relay to change speed switch; or switch to heater blower motor
second speed on three-speed unit |
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Light green |
Orange |
Rear window
wash switch to wash pump; or cab lock-down switch to warning light |
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Light green |
Purple |
Flasher unit to
flasher warning light |
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Light green |
Red |
Fuel tank
changeover switch to right-hand tank unit or entry and exit door
closed switch to door actuator |
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Light green |
Slate |
Fuel tank
changeover switch to left-hand tank unit; or entry and exit door
open switch to door actuator |
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Light green |
White |
Low air
pressure switch to buzzer and warning light |
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Light green |
Yellow |
Flasher switch
to right-hand warning light; or differential lock switch to
differential lock warning light |
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Orange |
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Wiper circuits
fused via ignition switch |
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Orange |
Black |
Switch to front
screen wiper motor parking circuit, timer or intermittent unit |
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Orange |
Blue |
Switch to front
screen wiper motor first speed timer or intermittent unit |
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Orange |
Green |
Switch to front
screen wiper motor second speed |
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Orange |
Light green |
Switch to
headlamp or rear window wiper motor parking circuit timer or relay
coil |
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Orange |
Pink |
Timer or relay
to headlamp or rear window wiper motor feed |
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Orange |
Purple |
Timer or
intermittent unit to motor parking circuit |
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Orange |
Slate |
Timer or relay
to headlamp or rear window wiper motor parking circuit |
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Orange |
White |
Timer or
intermittent unit to motor parking circuit |
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Orange |
Yellow |
Switch to
headlamp or rear window wiper motor feed, timer or relay coil |
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Pink |
white |
Ballast
terminal to ignition distributor |
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Purple |
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Accessories fed
direct from battery via fuse |
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Purple |
Black |
Horn to horn
relay to horn push |
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Purple |
Blue |
Fuse to heated
rear window relay or switch and warning light |
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Purple |
Brown |
Horn fuse to
horn relay when horn is fused separately |
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Purple |
Green |
Fuse to hazard
flasher |
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Purple |
Light green |
Fuse to relay
for screen demister |
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Purple |
Orange |
Aerial lift
motor to switch down |
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Purple |
Pink |
Rear heated
window to switch or relay |
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Purple |
Red |
Switches to map
light, under bonnet light, glove box light and boot lamp when fed
direct from battery fuse |
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Purple |
Slate |
Aerial lift
motor to switch up |
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Purple |
White |
Interior lights
to switch (subsidiary circuit door safety lights to switch) |
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Purple |
Yellow |
Horn to horn
relay |
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Red |
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Main feed to
all circuits mastered by side lamp switch |
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Red |
Black |
Left-hand, side
lamp fuse to side and tail lamps and number plate illumination |
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Red |
Blue |
Front fog lamp
fuse to fog lamp switch |
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Red |
Brown |
Rear fog guard
switch to lamps |
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Red |
Green |
Bulb failure
unit to right-hand-side and rear lamps |
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Red |
Orange |
Fuse box to
rear fog guard switch |
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Red |
Pink |
Side lamp fuse
to lighting relay |
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Red |
Purple |
Switches to map
light, under bonnet light, glove box light and boot lamp when side
lamp circuit fed |
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Red |
Slate |
Lamp failure
unit to left-hand side and tail lamps |
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Red |
White |
a) Side lamp
fuse to right-hand side and rear lamps
b) Side lamp fuse to panel light rheostat
c) Fuse to panel light switch or rheostat
d) Fuse to fibre optic source |
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Red |
Yellow |
Fog lamp switch
to fog lamp or front fog fuse to fog lamps |
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Slate |
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Window lift
main lead |
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White |
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Ignition switch
or starter solenoid to ballast resistor |
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White |
Black |
Ignition coil
contact breaker to distributor contact breaker, or distributor
side of coil to voltage impulse tachometer |
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White |
Blue |
Choke switch to
choke solenoid (un-fused) and/or choke to switch to warning light,
or electronic ignition distributor to drive resistor |
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White |
Brown |
Oil pressure
switch to warning light or gauge, or starter relay to oil pressure
switch |
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White |
Green |
Fuel pump no 2
or left-hand to changeover switch |
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White |
Light green |
Start switch to
starter interlock or oil pressure switch to fuel pump or start
inhibitor switch to starter relay or solenoid |
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White |
Orange |
Hazard warning
lead to switch |
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White |
Pink |
Ignition switch
to radio fuse |
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White |
Purple |
Fuel pump no 1
or right-hand to changeover switch |
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White |
Red |
Starter switch
to starter solenoid or inhibitor switch or starter relay or
ignition (start position) to bulb failure unit |
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White |
Slate |
Current
tachometer to ignition coil |
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White |
Yellow |
Ballast
resistor to coil or starter solenoid to coil |
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Yellow |
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a) Overdrive
b) Petrol injection
c) Door locks
d) Gear selector switch to start |
