Quote:
Originally Posted by RETed
1) The 12VDC reference wire (which you call a "pin") needs to be connected to +12VDC constant, direct to the battery.
This is applicable to the FD and Kouki FC alternator circuits; prior to that, the Zenki FC alternators were only wired to switched +12VDC.
This tells the alternator what the status of your battery is.
Try not to connect it to the +12V post off the alternator, cause it'll be higher than the battery + post, and there's chance that you get back EMI from the alternator operation - this is why you don't see the OEM's wire it to there, even though it's a short shot.
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Pin/Terminal. . . whatever, you know what was being referenced.
But yeah, I am redoing the wiring now.
Quote:
Originally Posted by RETed
2) The other pin is for the idiot light.
Like others who have already said, it's not necessary to connect this to anything.
This just completes a circuit (to ground?) so your idiots lights light up when the alternator fails.
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That's what I thought too but is contradicting to what others have said. Some say it has to be connected and others say not necessary. .