![background image](http://html1.mh-extra.com/html/vdo/speed-alert/speed-alert_installation-instructions-manual_3960752003.webp)
Page
3
WIRING DIAGRAM
.
Speed Signal. (Hall Effect or Inductive.)
BLUE WIRE
Illumination Positive. This wire must be
connected for headlight monitoring. If this
function is not required, connect wire to
earth.
WHITE WIRE
Battery Negative (Earth)
BLACK WIRE
Ignition Positive (+12V)
ORANGE WIRE
Battery Positive (+12V)
connect last
RED WIRE
WIRING OF SPEED SENSORS
EXAMPLE OF A HALL EFFECT SPEED SENSOR (p/n 412.009)
Mechanical
Speedo Cable
BROWN WIRE = Earth
BLACK WIRE = ignition (+12V)
BLUE WIRE = Signal
Fit a 3300 Ohms ¼ W
Resistor between Black
and Blue wires.