Thread: How to Install an alternator cut-off ("kill") switch on a 1998 Honda Civic
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Old 05-24-2012, 01:10 AM   #46 (permalink)
California98Civic
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by OneOfFew View Post
I'm going to try some different stuff tomorrow and report back. I think I'm going to put a scope on the wire to see if it is holding voltage after the switch. If so I may be able to pull it down. If all else fails I'll get 2 dpdt relays to disconnect EVERY control wire on the alternator.
Here is the wiring diagram for the charging system, taken from the Honda Service Manual for the 1996-1998 Civics. You'll see that the large gauge white wire running from the alt to the battery also has a connection back to the regulator, seemingly still inside the alternator. I think that's the culprit, here. What do you think?

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
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