I'm not getting power from my alternator. Could I have wired it wrong?

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MandMmom91681
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Car: 2007 Infiniti G35x

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I recently replaced the alternator, battery and a broken ground strap and I'm not getting any power from my alternator STILL? Could it be wired wrong?


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VStar650CL
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2004 Nissan Altima 2.5 S

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MandMmom91681 wrote:
Sun Mar 20, 2022 4:12 am
I recently replaced the alternator, battery and a broken ground strap and I'm not getting any power from my alternator STILL? Could it be wired wrong?
Not likely unless you actually had to rewire the plug-connector. You may have blown the field fuse while doing the work, or it may have been blown by your old alternator prior to the work. Check in whichever underhood fusebox has most of your fusible links, there will also be a 10A fuse in there marked ALT. If it's popped, you'll have no juice to the field terminal and very little output.

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VStar650CL
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Your wiring diagram is here on CHG-15, fuse #32 is the field fuse:
https://www.nicoclub.com/service-manual ... %2Fchg.pdf

The fuse layout is here on PG-94:
https://www.nicoclub.com/service-manual ... 7%2Fpg.pdf

MandMmom91681
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Joined: Sat Mar 19, 2022 6:19 pm
Car: 2007 Infiniti G35x

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I had to put a different plug b/c the one on it was damaged, due to a power steering leak. There are 3 wires correct? Pink(ish), purple or red & green??? Where is the field fuse? Also, I had a ground strap broke that I replaced, the one that bolts to the side of the manifold & the chassis(?)

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VStar650CL
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The polarizer is the side of the connector with the latch-tab which you push to release it. Looking from the harness end (where the wires enter) with the polarizer facing up, your wires from left to right should be Pink, Violet, Green. The fuse will be in a narrow box directly forward of the battery.

MandMmom91681
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Joined: Sat Mar 19, 2022 6:19 pm
Car: 2007 Infiniti G35x

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Wow! I had the damn thing wired wrong! I had the green in the middle. So my next question is, once I go out there and rewire it is it possible that I messed something up by wiring it wrong?

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VStar650CL
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Which one did you have swapped with Green? I'll tell you from that if there was any potential harm.

MandMmom91681
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Car: 2007 Infiniti G35x

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The violet I think? I haven't been able to work on it because its been raining...😕 I just disconnected the battery

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VStar650CL
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Now that I look, unless the whole connector was juxtaposed then it must be G-V that was reversed. It will depend on the circuit protection inside the alternator. You basically hooked up raw 12V to the generator lamp driver on pin 2, and the driver works by grounding the lamp. If it isn't protected against overload, it would fry as soon as it tried to turn on the generator lamp. So it's possible your lamp won't work, but it's likely the regulator circuitry would be unharmed and the alternator should still have output. I'd put a voltmeter on it once you straighten out the wiring, it should be outputting around 14V if nothing got hurt. If it's much lower or much higher then it might be cooked.


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