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2016 DF150 with 55 hrs, hooked up NMEA2000 network. Running Eng Interface v3.5 All other engine data reads as it should except for trim. After calibrating the trim on the Lowerance Elite 7ti, trim readings will fluctuate randomly. Despite not trimming the motor, trim readings are all over the place (39,76,16 etc.) Trimmed all the way up or down the readings to not change accordingly. Boat does not have analog trim gauge, so I have no other reference. Is it possible to test functionality on the trim sender unit? I have inspected the unit and all seems to be in order. When trimming the arm from the motor does indeed make contact with the senders receiving pad.