Home » Public Forums » GMCnet » Electrical gremlins, charging set up, and questions
Re: Electrical gremlins, charging set up, and questions [message #310594 is a reply to message #310570] |
Sat, 19 November 2016 02:43 |
Ken Burton
Messages: 10030 Registered: January 2004 Location: Hebron, Indiana
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Senior Member |
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You need to closely look at the wiring diagram. The circuit for the red 12 ga wire on the horn relay terminal goes 3 places:
1. To the inside fuse box
2. To ignition switch
3. To the white wire on the alternator plug.
The white wire on the alternator plug (item 3 above) is a remote voltage sensing line for the alternator. It moves very little current. I believe the only reason GM used 12 ga. there was because the white wire was meeting the two other 12 ga. wires Items 1 and 1 above) that do carry most of the current (other than the starter) used in the engine side of the coach.
That white wire going to the alternator plug is NOT the wire carrying the current generated by the alternator and supplied to the center terminal of the isolator.
The wire carrying alternator power to the isolator center terminal is a heavier 10 ga. RED one. It has single ring terminal on it and it is mounted on a stud on the back side of the alternator.
I have no idea what this PO was trying to do here.
I am suggesting that you leave that white wire circuit and red wire at the horn relay wire alone for now. You can go back and clean it up later.
On you original problem, You need to find the 10 ga. wire connected on the single terminal on the back of the alternator and chase it down. It is the one supplying ALL charging power to the Isolator and the coach and should be mounted to the center terminal of the isolator.
I'll repeat. The white wire in the alternator plug is a voltage sense line only.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
[Updated on: Sun, 20 November 2016 06:38] Report message to a moderator
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Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 05 November 2016 12:24
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 05 November 2016 17:41
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: sgltrac on Tue, 08 November 2016 12:20
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: jimk on Tue, 08 November 2016 14:19
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: USAussie on Tue, 08 November 2016 14:46
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: k2gkk on Tue, 08 November 2016 17:42
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: USAussie on Tue, 08 November 2016 17:55
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: k2gkk on Tue, 08 November 2016 18:06
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 05 November 2016 23:19
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Re: Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sun, 06 November 2016 13:03
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sun, 06 November 2016 14:06
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Wed, 09 November 2016 12:54
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Wed, 09 November 2016 16:06
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Re: Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Thu, 10 November 2016 18:04
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Thu, 10 November 2016 23:07
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Fri, 11 November 2016 17:12
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 12 November 2016 11:37
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 12 November 2016 21:47
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 12 November 2016 23:07
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Mon, 14 November 2016 23:16
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Re: Electrical gremlins, charging set up, and questions
By: roy1 on Tue, 15 November 2016 11:46
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Re: Electrical gremlins, charging set up, and questions
By: JohnL455 on Tue, 15 November 2016 19:12
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Re: Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Wed, 16 November 2016 11:57
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Re: Electrical gremlins, charging set up, and questions
By: C Boyd on Wed, 16 November 2016 16:37
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Tue, 15 November 2016 21:19
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Thu, 17 November 2016 12:07
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Thu, 17 November 2016 14:21
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Fri, 18 November 2016 14:01
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
By: jimk on Fri, 18 November 2016 15:43
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sat, 19 November 2016 11:20
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Re: [GMCnet] Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Sun, 20 November 2016 12:46
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Re: Electrical gremlins, charging set up, and questions
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Re: Electrical gremlins, charging set up, and questions
By: Atom Ant on Fri, 18 November 2016 18:29
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