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Symptom
-----------------------------------------------------------------------------------------------------------------------------------
The fuel gauge reads
backwards, incorrectly,
or does not change.
The oil or water reading The engine block may not be
is incorrect.
The gear shift indicator
does not light up.
The gear shift indicator
does not operate
properly.
The internal turn signal
or high beam
indicators do not light up. system properly.
Possible Problem
The Control Box may be set for Refer to "Fuel Setup"
the wrong type of fuel sensor.
The fuel sensor may not be
connected to the Control Box
properly.
The fuel sensor may not be
operating properly.
The fuel sensor may have a
non-standard resistance
range.
grounded to the chassis frame
or body properly.
The sending units are not grounded Make sure wires are in correct terminals.
at the Control Box.
The sending unit wire is picking
up noise from nearby wires.
The sending unit is not
compatible with the Control Box
Water temperature sensor has an
air pocket in the coolant near it.
The optional gear shift sending
unit is not connected to the
Control Box.
The gear shift decoder
is not connected properly,
or programmed correctly.
The Control Box is not connected
to the vehicle's electrical
The TURN REMIND setup
menu is set to OEM.
Solution
section of the installation manual
to ensure that the settings match
your fuel sensor.
Check the connections at both
ends of the fuel sensor wire.
Make sure the fuel sensor is
grounded properly. Ideally it should be
grounded to the Control Box.
Check the fuel sending unit with
an electrical multi-meter.
Use the manual adj fuel sensor setup.
See the Fuel Setup section of the
manual for instructions.
Use heavy ground cables from the
battery to the engine block.
Make sure both ends of the cable
have clean metal-to-metal
connections.
Use a braided ground strap to
ground the engine block to the
chassis.
Use a large braided ground strap
to ground the engine block to
the body or firewall.
Isolate the sending unit wire from
engine and ignition wires.
Use the sending unit provided with
the instrument system.
Warm the engine up to pressurize the
coolant system. Slowly loosen the sensor
until coolant begins to seep out. Tighten
the sensor up again.
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.
Refer to "Display Setup" "TURN REMIND"
section of the installation manual.
53
MAN# 650814
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