2019 Nautique G23 - Lync screen Gauges going out but not entire sync screen.

[Ryan_2018_G23]

Check out the videos... I can't even explain it:

https://www.icloud.com/sharedalbum/#B2I5idkMwo78Yl

In second (shorter video) the gauges do come back on at the very end of video.

This has been going over for about 2 years now and can't figure it out. Dealership can not get it to repeat on water test, but happens to us every time we go out. When surfing the wave with drop out completely ,as well, and all gauges drop out and cruise control drops out. No changes in throttle action. Surfer runs into boat... It is dangerous.

[Ryan_2018_G23]

My previous post trying to explain: https://www.planetnautique.com/vb5/f...uges-drop-to-0

[jpwhit]

I'm fairly certain you're experiencing a CanBus fault. On the newer generation Nautique's they have really overloaded the single CanBus in the boat. They really need a much more resilient and fault tolerant design such as is used in automotive with multiple buses where safety critical systems such as throttle and boat speed are on a separate bus from non-critical systems such as ballast pumps, tab actuators, lighting and such. That would also make diagnosis much easier. Building some logging and diagnostic tools into the system would also go a long way.

Unfortunately, given the number of devices on the single bus, this is difficult to diagnose. Especially remotely. If I were at your boat in person, I'd connect up a CanBus logger and bus monitor to figure out what's going on. Given the cost of these boats, maybe Nautique can send someone to your location to diagnose the issue.

[Ryan_2018_G23]

Thanks for these thoughts, jpwhit . Will these show on a fault screen anywhere as we are not getting fault popping up? We have had terrible issues with batteries / low voltage / failure... Have replaced the batteries 4 times in 4 years with only 240 hours on the boat. The battery tender also went out so had to buy a new one of those. Not sure if any of these are related but thought I should bring it up.

How challenging / costly is the CanBus fault repair? I am down on Lake Keowee in South Carolina.

[NautiqueJeff]

jpwhit is absolutely on the right track.

I ran your issue by a friend of mine who is an engineer at Nautique, and he said you're likely losing CAN communication. He suggested starting by checking the CAN wiring to the LINC screen. It may be as simple as a loose connection.