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●
Is the battery connected?
●
Are the ECU harness and signal harnesses
connected?
●
Is the RSM harness and signal harnesses
connected?
Fault connections can occur even when the
harnesses seem to be connected. Double check all
connectors, splices, and plugs.
Unit does not
display properly
●
Speed/RPM does not appear on screen
Have the two signal wires been properly
connected to the ECU? Double check the
instruction manual and wiring diagram. Also check
for loose connections.
●
RPM display is Incorrect
・
Re-check Cylinder Setting
（Ｐ１３）
・
There will be a slight difference in readings from
the factory tachometer. It is normal for a 200-300
rpm difference in the higher rpm ranges. This unit
will show correct RPM.
●
Speed Display is Incorrect
・
Re-check Speed Pulse Setting and Speed Pulse Adjust
Setting (not required on some vehicles)
（Ｐ１３・１４）
・
Factory Speedometers have some level of display
error. At 100km/h, it is not unusual for there to be
over a 10km/h difference. This unit will display the
correct vehicle speed.
・
If the speed does not display above a certain point,
there may be another sped limiter device installed
on the vehicle already. Be sure to remove that
device for proper readings.
●
Acceleration and Power will not display
・
Is the G Sensor connected correctly? The G
Sensor (separately sold) must be used for these
functions.
Power will not
Troubleshooting
