Troubleshooting guide.
Problem Possible
cause
Solution
Gauge will not light up
Red wire does not have
Connect to a location that has power.
power.
Black wire is not getting
Connect ground to a different location.
a
good
ground.
Gauge is damaged.
Return gauge for repair. (see instructions)
Gauge lights up, but
Sender is not connected
Connect wires from gauge to sender
displays “EE”.
to gauge.
terminals.
Wire between gauge and
Test and replace wire.
sender
is
broken.
Sender is not grounding
Sender grounds through it’s mounting
properly.
threads. Make sure the threads are
clean.
Do Not Use Tape or Sealant
on Sender Threads.
Gauge is damaged.
Return gauge for repair. (contact factory)
Sender is damaged.
Return for replacement. (see instructions)
Gauge lights up, but
Sender wire is shorted to
Check wire for damaged insulation, replace
displays “--”.
ground.
if necessary.
Gauge is damaged.
Return gauge for repair. (contact factory)
Gauge lights up, but does
Loose connection on red
Reconnect red wire.
not read correctly.
power wire.
Poor sender ground.
Make sure sender case is getting a solid ground.
Poor ground connection.
Move ground to different location
Incorrect sender type.
Make sure sender has been replaced with
the
correct
type
(SEN-03-1).
Gauge flashes constantly.
Warning limits are not set
Reset warning limits.
properly.
Vehicle has improper air
Check air level and air pump.
pressure.
External warning indicator
Indicator not connected
Check indicator wiring connections.
does not work.
properly.
Indicator does not work.
Repair or replace indicator.
Gauge output has been
Return gauge for repair. (see instructions)
damaged.
Gauge will not dim.
Blue wire is not connected
Check wiring connections.
correctly.
Gauge is damaged.
Return gauge for repair. (contact factory)
Gauge remains dim at all
Blue wire is getting power
Connect blue wire to location that only
times.
all of the time.
has power when the headlights are on.
Battery
is
very
low.
Recharge or replace vehicle battery.
Gauge is damaged.
Return gauge for repair. (contact factory)
