is this a full sized bus?
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Originally Posted by silvermachine
only about half of the R side has power. (Tested with multimeter)
I’ve got barely enough terminals to power all existing accessories as it is.
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if they filled up all the terminals from the factory, I'd be worried that they overloaded the boards somehow. the problem could be as simple as popped fuses, but if not you can usually figure out the problem with that multimeter (the ohmmeter is used a lot for this sort of thing in my shop). corroded grounds is a common one that can cause all kinds of problems.
Quote:
Originally Posted by silvermachine
Buuuut the issue here is that I’m trying to wire up 3 new things (radio head unit, 12v phone charger, and driver fan. Trying to figure out the smart move.
There are only two available positive ports. Most of the negative are already doubled up as you can see in the photos. Is there a big issue with hooking up multiple things to the same positive port given the connections are solid? It’s all just 12v right?
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voltage isn't everything. both the fan and the charger take minimal power (amps). a 6" fan draws less than 2 amps, and the charger is 2 amps (although it may be 2 amps per usb slot). there isn't much risk of overloading a circuit with current draw like that, and it sounds like you have two available inputs, anyway.
a typical head unit takes more like 5 amps (check the owner's manual), and with something like that, I'd want to wire directly to the fuse block, with a dedicated fuse.
Quote:
Originally Posted by silvermachine
Or should I try and dig into the wiring abut and try to fix the terminal block, or possibly even wire a new one?
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so often this kind of thing is something simple, but it can take FOREVER to track it down. it's really up to you whether you want to get into it. I can tell you that a new system isn't easy either, not even a prefabricated one like CHEESE_WAGON mentioned.
my suggestion would be to get it fixed one way or another. at least figure out which circuits aren't working, and what they do. that way you can make a more informed decision about how necessary they are.
with my bus, I found I was able to rip almost all the wiring out of the original DC distribution panel after I'd traced all the wires. I also installed 4AWG positive and negative cables (with a big ol' inline DC breaker) directly from my batteries. at that point I didn't have to worry about how much power I was drawing, and I had plenty of unused inputs.
this might fix your problems, too.