DF225 - Trim Tilt Guage Crapped Out

[editfishcook]

My trim tilt guage is not working! Wondering is there is a good way to diagnose the issue without ordering all the parts and doing trial and error. From what I see there are 3 components (guage on dash and the two sender units with arms on the engine) not sure what is at fault. any help would be appreciated!

[JJW158]

Trim Guage

Were you able to figure this out? I was surprised to see no one responded