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5. MAINTENANCE, TROUBLESHOOTING
5-4
5.3.4 NMEA0183 test
This test checks for correct input and output of NMEA 0183 data from PORT1 and
PORT2. The test is for service technicians and requires a special test connector. (If
the test is done without the connector, the results are shown as “- -”.)
Open the diagnostic test options window, select [NMEA0183 TEST] then push the
Course control knob. The results are shown as OK or "- -". For any "- -", repeat the
test. If the error condition continues, contact your dealer.
5.3.5 CAN bus test
This test checks the CAN bus network. Open the diagnostic test options window, se-
lect [CAN BUS TEST] then push the Course control knob. The results are shown as
OK or NG (No Good). ("- -" appears when there is no CAN bus connection.) If NG ap-
pears, repeat the test. If the error condition continues, contact your dealer.
PORT1: OK
PORT2: OK
NMEA0183 TEST
CAN BUS: OK
CAN BUS TEST