Dakota Digital 3 Series Installation And Operation Manual page 29

Symptom
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The fuel display reads
backwards, incorrectly,
or does not change.
The oil or water display
reading is incorrect.
The gear shift indicator
does not light up.
The gear shift indicator
does not operate
properly.
The internal turn signal
and high beam
indicators do not light up.
The Check Engine
indicator does not
operate properly.
Possible Problem
The control box may be set for
the wrong type of fuel sender.
The fuel sender may not be
connected to the control box
properly.
The fuel sender may not be
operating properly.
The fuel sender may have a
non-standard resistance
range.
The sending units are not grounded Make sure wires are in correct terminals.
to the control box.
The sending unit wire is picking
up noise from nearby wires.
The sending unit is not
compatible with the control box
The optional gear shift sending
unit is not connected to the
control box.
The gear shift decoder
is not connected properly.
The gear shift decoder is not
calibrated properly.
The control box is not connected
to the vehicle's electrical
system properly.
The control box is not connected
to an engine control module.
Solution
Refer to "Fuel Setup"
section of the installation manual
to ensure that the settings match
your fuel sender.
Check the connections at both
ends of the fuel sender wire.
Make sure the fuel sender is
grounded properly.
Check the fuel sending unit with
an electrical multi-meter.
Use the custom fuel sender setup.
See the "Fuel Setup" section of the
manual for instructions.
Isolate the sending unit wire from
motor and ignition wires.
Use the sending unit provided with
the display system.
Connect the sending unit to the
control box using the
instructions supplied with the
sending unit.
Check the connections to the
transmission linkage and to
the control box.
Check gear shift decoder
Installation manual.
Check the wires connected to the
HIGH, LEFT, and RIGHT
terminals on the control box.
This feature is designed to work
with engine control systems that
provide an active low signal.
29 MAN 650066:E