Seapig
Active Member
- Dec 25, 2018
- 138
- Boat Info
- 12 Sundancer 310 w Axius
- Engines
- Twin 350 Mags w Bravo drives
On our 2012 310 (twin MAG 350 B-3) our starboard “battery voltage” is incorrectly shown on vessel view, gauge, and in scan data. I’ve verified the lower than actual voltage with a DVOM at the engine, alternator, and battery bank. It’s accurate when the engine is cold and shut off. Running, it’s around 1/2 volt low when cold and as much as 1.5V when hot.
Data is broadcast over the CAN network to the Vessel View and instruments so I’m not dealing with a faulty gauge.
I’ve been suspecting a PCM fault but not willing to spend thousands to try another PCM and because I have Axius, swapping PCMs side-to-side isn’t an option.
I recently put my Diacom on a 2016 Bryant with a Mercruiser 305 and noticed that boat showed the “battery voltage” PID about 1/2 volt lower than the “system Voltage” PID which is clearly erroneous. They should be the same IMO.
I’m wondering if any of you folks are experiencing the same thing and have found a solution.
Please, no suggestions to replace batteries or alternator. The voltages are FINE and normal. The DISPLAYED Starboard voltages are incorrect.
Data is broadcast over the CAN network to the Vessel View and instruments so I’m not dealing with a faulty gauge.
I’ve been suspecting a PCM fault but not willing to spend thousands to try another PCM and because I have Axius, swapping PCMs side-to-side isn’t an option.
I recently put my Diacom on a 2016 Bryant with a Mercruiser 305 and noticed that boat showed the “battery voltage” PID about 1/2 volt lower than the “system Voltage” PID which is clearly erroneous. They should be the same IMO.
I’m wondering if any of you folks are experiencing the same thing and have found a solution.
Please, no suggestions to replace batteries or alternator. The voltages are FINE and normal. The DISPLAYED Starboard voltages are incorrect.