Dakota Digital 3X Series Installation And Operation Manual page 29

Symptom
-----------------------------------------------------------------------------------------------------------------------------------
The tachometer reading
is incorrect.
The speedometer will
not show a reading.
The speedometer is reading The speedometer is not calibrated. Refer to the "Speed Calibration"
too fast or too slow.
With the engine running and A tachometer wire is too close to
the vehicle sitting still, the
speedometer reads higher There is a ground problem between Make certain the ground wire for
than zero.
A display shows "EE"
A display shows "- -"
Fuel displays "FL"
Possible Problem
The tachometer signal wire is
loose or broken.
The engine cylinder setting is
incorrect.
The speed sending unit is not
connected to the control box
properly.
The speed signal being used
is not compatible with the
control box.
The speed sending unit is not
connected to the transmission
properly.
The sending unit wire is picking
up noise from nearby wires.
to the speed signal wire.
the speed sensor and the control
box.
Sending unit for that gauge
is not connected to the control
box.
Sending unit is not getting
grounded.
On the water or oil, the sending
unit is not the correct type.
On the fuel, the control box may be Refer to "Fuel Setup" section of the
set for the wrong fuel sender.
The sending unit wire for that
gauge is shorted to ground.
Sending unit for that gauge
is not connected to the control
box.
The control box is set to an invalid
fuel sender setting.
29
Solution
Check the connections at both
ends of the wire.
Refer to the "Tach Setup" section
of the installation manual.
Check that all speed sending
unit wires are connected to the
control box properly.
Use the speed sending unit
supplied with the display
system.
Check that sender is mounted
properly.
Check that transmission has the
appropriate internal parts.
Isolate the sending unit wire from
engine and ignition wires.
section of the installation manual.
Reroute or isolate the tachometer
wire away from the speed wire.
the speed sensor is connected
directly to the control box ground.
Check the wire from sending unit
to the control box for breaks.
Make sure that the sending unit is
wired to the correct terminal.
Make sure the sending unit is
grounded properly at the control box.
Use the water and oil senders that
were supplied with the system.
installation manual to ensure that
the settings match your fuel sender.
Repair or replace shorted wire.
Check the wire from sending unit
to the control box for breaks.
Make sure that the sending unit is
wired to the correct terminal.
Refer to "Fuel Setup"
section of the installation manual
to ensure that the settings match
your fuel sender.
MAN 650067:G