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Testing the Garmin OnBoard Engine Cutoff System

WARNING
After installing the Garmin OnBoard™ engine cutoff system, you must test the system to ensure that the engines or engines turn off when expected. Using the vessel without testing the engine cutoff system may result in property damage, serious injury, or death.

It is critical that you test the functionality of the Garmin OnBoard engine cutoff system after you have finished the installation. The easiest way to accomplish this is by using a test procedure included in the software. If the system does not shut off the engines as expected, you must investigate and correct any errors before using the vessel.

  1. On a connected chartplotter, select Settings menu > Communications > NMEA 2000 Setup > Device List.
  2. Select the GOS 10 Hub.
  3. Select Review > Test Engine Cutoff > OK
    The system sends a cutoff signal to the engine or engines for 30 seconds.
  4. Confirm that the engine or engines turn off as expected for the duration of the test.
  5. Select Review > Test Buzzer > OK.
    The system sends a signal to sound the connected buzzer.
  6. Confirm that the buzzer sounds and is audible on the vessel.
  7. If necessary, perform any adjustments to the engine cutoff system connection or the buzzer connection, and repeat these tests.
GUID-7D06FCCD-97F4-4DD5-9900-79121558C4B8 v2
December 2025
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