Another wiring question; wiring alternator to volt gauge? -
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post #1 of 4 Old 07-17-2010, 03:03 PM Thread Starter
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Another wiring question; wiring alternator to volt gauge?

I am trying to wire up my alternator by going off of the diagram that Jeephammer showed me. Was wondering if anybody could tell me where i would run the wire to the gauge? I have got aftermarket gauges installed but don't know where the wire would come from off of the alternator? All of my wiring is from scratch. I didn't use a wiring harness. Here is a pic of the diagram that i am going by. Any help would be great.


2000 XJ limited-3" rough country, winch, winch bumper, 31" BFG at's

98 ZJ Limited 5.2- FM 40
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post #2 of 4 Old 07-20-2010, 04:14 PM
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If you are wiring a volt meter you can wire the + to your ignition switch so it will read voltage when the key is on. If you are wiring an amp meter it needs to go inline from the big +(Bat) post on the back of the alternator, (between alternator and battery). Most gauges read voltage and are simple to wire. + to ign and - to ground.
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post #3 of 4 Old 07-20-2010, 04:42 PM
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On my '86, the voltmeter is tied into the yellow wire that goes to the windshield wiper motor fuse.
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post #4 of 4 Old 07-20-2010, 04:46 PM
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Any wire that has 12V when key is on will work.
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alternator , gauge , volt , voltmeter , wiring , wiring harness

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