Speedometer not registering

[Arbie 0]

The speedometer on my 2009 Enzo sv240 won’t register. It’s a gps based speedometer and it doesn’t have a paddle wheel. The gps screen  shows my current location but won’t show speed. Any ideas what could be wrong? Is there a specific fuse for the speedometer? It worked fine 2 days ago then all of a sudden it stopped working. 

[Troy 234]

maybe try resetting the box? Does the GPS speed come up on the speed control (perfect pass) display?

[Arbie 0]

@TroyNo it shows 0. However if I'm in the GPS info screen it shows in the cogs row. But the speed and vessel screens show 0 

Edited August 20, 2018 by Arbie