2014 ar210 tachometer help

[97dustang]

I have a 2014 AR210 and when I bought the boat the port tach didn’t work but the starboard did. Ran it for one season and now both tach’s have completely stopped working. I bought the service manual and it says to check the voltage at plug but none of the wiring diagrams show the pinning of the plugs on the back of the tach. Has anyone run into this, or can anyone help by sharing a wiring diagram for me?

thanks,
Dustin

 

[Lajilaj57]

I have the same issue with my 14 ar210. No port tachs available I’ve been waiting a year. Half way through last season I also got the n2k/comm error on my starboard tach. Wish I had an answer. I found a place in Florida that says they can fix but I’m hesitant in sending to them. Greg

 

[Lajilaj57]

I e also researched that this all could be related to the ECU unit/display unit. This is located on the side of one of the engines. ??‍

 

[Lajilaj57]

I sent my port tach to Dashboard instrument cluster in Miami two weeks ago. They called me yesterday and port tach is fixed. It had water damage. They replaced all the inside components. We shall see if the fix for 300 does the job!

 

[Lajilaj57]

Does anyone know if the ECU units on the side of both engines will cause the N2K/comm code on both tachs?