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I have a 1st gen Xterra (2000) that I have owned for about 4 years. It has always had some weird issues that seem to be common among Xterras from my research; such as the gauges completely going out when it is hot outside or with the dash dimmer light all the way bright.

The latest issue is with the alternator. I was driving home from work and the ABS light started flashing, then the car started to die. The battery light never came on. I replaced the alternator and battery, still have the issue and the battery light is still not on. It does come on with ignition in test position, as do all the dash lights, so I know the bulb is working.

I have been researching this online and have tested all the fuses, fusible links, etc. I still have not isolated the issue. I am hoping someone hear has run into this as this old Nissans have some quirks.

Anyone?
 

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No, but check fuses and relays, especially ignition relay. Possible ignition switch and also check your grounding. I would start with the relay and ignition switch. I would check with OBDII first, to see any codes are popping up. The ignition switch is about 60 bucks.
 

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Thx for the replay, Rain. I have checked fuses, relays and ground. I have not checked ignition, that is an idea. The only code it is throwing on scan is the knock sensor (P095?) which it always throws. I received another suggestion that connections at the battery cable may be bad. I will check that cable as well.
 

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Thx for the replay, Rain. I have checked fuses, relays and ground. I have not checked ignition, that is an idea. The only code it is throwing on scan is the knock sensor (P095?) which it always throws. I received another suggestion that connections at the battery cable may be bad. I will check that cable as well.
You might have to take the alternator and get it tested like Autozone. You might bum one even new. Especially rebuilt ones. They can load test it there.
 

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I'm having the same issue with my 2003 right now and I'm completely stumped, even replaced battery terminals with new brass terminals and still same problem
 

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its comon to get a dud remaned alternator, i would do as rain suggested make sure your grounds are good and tight and free of corrosion, common as vehicles age for these to work loose and corrode then causing weird electrical problems that seem to be unsolveable. check the belt tension and put a volt meter to the alternator while running and see hat youy get for output, you may be getting correct voltage (ths why the lack of battery light) but incorrect amperage flow in a dc electrical system think of things like this voltage is a lake full of water, it has potential but cannot do anything on its own, amperage would be adding a river flowing from the voltage lake out to the systems of the car, and resistance or ohms is how wide or narrow this river is (so how much restriction of flow the system is creating) you need proper voltage and resistance to get proper amperage. if you get too much resistance (say from a short to ground or wires fraying) then you get a reduction in amperage and issues. if you get incorrect voltage the system ahsto pump more amps to output the same amount of power and either way the system is doing more work and geting less results. this is why we suggest checking your wires as the truck is old and wires wear, shielding frays and things come loose due to normal driving.
 
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