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.
Fuse is blown.
Replace in line fuse. (2 amp only.)
Gauge is damaged.
Return gauge for repair. (see instructions)
Gauge lights up, but
Sender is not connected
Connect gray wire from gauge to sender
displays “EE”.
to gauge.
terminal.
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 ground connection.
Move ground to different location
Incorrect sender type.
Make sure sender has been replaced with
the
correct
type
(SEN-04-x).
Gauge is not calibrated
Gauge must be recalibrated.
correctly.
(contact
factory)
Gauge flashes constantly.
Warning limits are not set
Reset warning limits.
properly.
Oil
is
overheating Check
cooling
system.
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)
