10
Dashboard
Wiring Diagram – Standard
YELLOW
BLACK
Permanent
Power (12V or 24V)
Switched
Power (Engine on/off)
Ground
RED
IG
N
+
ve
PURPLE
Speed Signal (+ve)
BLUE
Speed Signal (-ve) or Ground
Any unused wiring
should be trimmed
neatly and made safe
Fuses must be fitted
at connection point.
This is to protect the
wire in case of a short
Cut wire loop and
connect fuse inline
Cable clamp
or heat shrink
Vehicle wiring
harness
Note: Ensure
wiring is neatly
routed to under
the dash
On heavy vehicles
leave sufficient cable
exposed to permit
handing unit to
enforcement officer
RAM
EROAD
RED
Permanent
Power (12V or 24V)
Ignition
(True Idle)
Ground
Speed Signal (+ve)
Speed Signal (-ve) or Ground
YELLOW
BLACK
PURPLE
BLUE
Ignition input should always
reflect the engine state for
calculating true idle. Alternator
connection is supported
Existing Installs
To uninstall an Existing Ehubo1, disconnect the Ehubo1 from the vehicle wiring harness and
insert the Ehubo2 connector in its place.
Use a cable clamp or heat shrink to secure the connection and hide it beneath the dash.
Remove the window mount and Driver ID module and loom (if present) that were previously
used by the Ehubo1, and clean up any adhesive residue.
