Command link code 156

[Jeffwillb]

Hi all I have a yamaha f250 and command link on my 2011
Ultra 232 seahunt. When I hit a big wave the check engine
Indicator comes on with code 156. Comm failure
I've narrowed down to the throttle unit in the console
and a loose connection,
If I tap the unit or wiggle the harness assembly I can recreate
The issue. Anybody know of similar issues and how I can remove
The unit to inspect it ?