Analog trim guage and Vessel View trim display not working

Hello...
I have my starboard engine's drive trim guage and Vessel view trim display not functioning.
This is a 2009 Bravo 3 outdrive with axius/DTS.

I have replaced the sending unit but still there is no movement on my starboard trim guage.
The vessel view display doesn't show the drive moving, yet the drive trim is working fine.
I was getting an engine sensor fault regarding the drive trim so I did a sensor reset for all sensors
and the display error went away.
The trim guage still did not work nor did the vessel view trim display.
My port engine trim guage and vessel view display are all correct.
I have done searches and can not find very much on this subject.
Any input appreciated...:huh:

FYI.. Good to know.....Figured it out...I had replaced the starboard side trim sender for the usual
analog display...nothing...then looked at the port side engine..unplugged the trim plug at stern and checked
the resistance..looked ok but when I put the drive up, the trim guage still moved...but the
plug was undone!!
Not so, with DTS, :smt038 the signal to the guage is from the digital port side
sender. It has to be the 3 wire sender for this to work.. who would of knew.....