650066
22
Symptom
Possible Problem
Solution
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The gear shift indicator
The optional gear shift sending
Connect the sending unit to the
does not light up.
unit is not connected to the
control box using the
control box.
instructions supplied with the
sending unit.
The gear shift indicator
The gear shift decoder
Check the connections to the
does not operate
is not connected properly.
transmission linkage and to
properly.
the control box.
Check gear shift decoder
Installation manual.
The internal turn signal
The control box is not connected
Check the wires connected to the
and high beam
to the vehicle's electrical
HIGH, LEFT, and RIGHT
indicators do not light up.
system properly.
terminals on the control box.
The check engine
The control box is not connected
This feature is designed to work
indicator does not
to a TPI control module.
with engine control systems that
operate properly.
provide an active low signal.
The check engine
The Engine Control Module
Connect a light or similar load
indicator stays on
(ECM) needs to see the
to the ECM along with the
all of the time.
load of a light connected to it.
control box.
The Function switches
The push-button switches are
Momentary push-button or toggle
do not operate
not connected to the control
switches must be connected to
properly.
box.
the SW1 and SW2 terminals
as described in the manual.
The wrong type of switch is
The switch terminal connected
being used.
to the control box should
normally be open. When the
the switch is activated, the
terminal should make contact
to ground.
The display system starts
Sw 2 terminal is constantly
Disconnect or replace the
up in the demonstration
connected to ground.
SW2 switch.
mode and remains in it.
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