12 VDC battery meter question

SJCJACK

Member
Joined
Mar 12, 2025
Messages
11
Fluid Motion Model
C-30 S
Hull Identification Number
FMLC3022i516
Vessel Name
CATAVINA
So, on our Cutwater 30 Sedan the main AC/DC panel, there is a small 3 position toggle switch to show 12v battery charge level. 1 is for House, 2 is for Engine, and 3 is for Thruster, apparently. I have proper voltage for 1 and 2, but 3 shows 0 voltage.....even though the battery is new and fully charged (13.3volts). So, my question is, where does the toggle.switch (and meter) get its signal from? Where is the input? Thanks
 
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