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KDTC730
Troubles and causes
Trouble
Possible cause
Remedy
KDTC730 cannot communicate.
Communication antenna is
not connected.
Connect antenna.
Antenna cable is broken. Replace antenna cable.
Foreign matter is in
communication antenna
connector.
Remove foreign matter.
Radio wave does not reach
antenna
because
of
obstacle around it.
Install antenna to place where there are no
obstacles.
Out of communicable
range.
Move in communicable range.
Power source is not
supplied.
Check service power source, GND, and ACC
line.
KDTC730 has trouble.
Replace KDTC730.
GPS signals are not received.
GPS antenna is not
connected.
Connect GPS antenna.
GPS antenna cable is
broken.
Replace GPS antenna cable.
GPS antenna is defective. Replace GPS antenna.
Radio wave does not reach
GPS antenna because of
obstacle around it.
Install GPS antenna to place where there are
no obstacles.
KDTC730 has trouble.
Replace KDTC730.
When ACC line is turned ON, KDTC730
does not operate (LED does not
light up or flash at all).
Power source is not
supplied.
Check service power source, GND, and ACC
line.
Interface connector pins
are wrong.
Correct interface connector pins.
KDTC730 has trouble.
Replace KDTC730.
