Charging relay

[C Folly]

So my C28 is now 10 yrs old so I decided to go through the electrical system to ensure I didn't have any impending failures. Sure glad I did. Found several loose conections, coroded terminals and one inline fuse holder that had melted. Also the nut on the case ground to the inverter had fallen off and the neutral connection was badly burned. Decided to remove the inverter since we rarely use it anyway. Word of warning to you guys, if you remove the aft flip seat then check for any cable lugs in the cable runs, all three of mine were loose.
I also validated the owners manual wiring diagrams against the fuse blocks. This cleared up several misconceptions I had about how the boat is wired. But there is one circuit on the boat I can't seem to understand and is not on the diagrams and that's a 'charging relay' circuit that comes off the unswitched engine fuse block. Red wire with yellow electrical tape exiits the fuse terminal, disappears aft and apparently reappears at the ACRS entering both LED terminals of the ACRs. This makes me think there is a remote LED somewhere. The label on the wire is consistent with the factory wiring. Does anyone have a remote ACR LED? Where is it?

 

[knotflying]

I can't remember exactly, but I had the same connections on mine and there was no remote LED. I seem to remember I just removed it. There is a saying, "If it works don't fix it." Examining all you connections etc. is a good Idea. I did that on my 2011 R-27 a few years ago. I removed cleaned and applied Corrosion Block to every connection. It was a worthwhile mission as I found similar loose and corroded connections. It is also a great way to understand the electrical system.

 

[BB marine]

If you have a yellow 14 gage wire coming off the ground terminal off the ACR this makes it function and should be used. If the red is attached to the LED terminal it is for a remote indicator light which would be mounted at the mid berth where the AC panel is located along with house ,thruster and parallel battery switches. I did not have the LED wire installed in my boat.

 

[C Folly]

That was my thinking as well. The light should be at the switch panel. But the wire goes directly aft through the bulkhead. I would think the 3 amp fuse would have blown if there was no lamp in line. I disconnected the wire and ACRs are working fine so I'll leave it and see what comes. Thanks for the replies.
Cheers