2021 Yamaha 275 SD - where are the diagnostic ports?

[Neutron]

My problem was most of the systems out there don’t handle a 2023 model. I also used View attachment 232620

Both of my systems scan 2024 models. Dont by into the AI crap, i have found it very generic and not helpfull

 

[DSG!]

Thanks. What is the brand and source for the analytic tool? Although the AI definitely has disadvantages, it delivered thr correct recommendations for my issue.

 

[DSG!]

My BCU issue ended up being my batteries, although only 20 months old and testing “Good”, had just enough current drop under load to trigger the fault. Replacing just the start battery did not solve the issue, but replacing both did!

 

[Neutron]

Thanks. What is the brand and source for the analytic tool? Although the AI definitely has disadvantages, it delivered thr correct recommendations for my issue.

One of my scan tools that uses my laptop isn't available anymore, i think yamaha didn't like them using same platform is my guess.
The other is my Obdstar which connected to a customers 2024 gp1800r with no problems
These boats are very suseptible to problems with weak batteries, usually its the first thing to check. Been widly known for all past models