2007 pathfinder radio problems - Nissan Forums : Nissan Forum
 
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post #1 of 5 Old 09-08-2016, 06:12 PM Thread Starter
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2007 pathfinder radio problems

Hello,

My son has an 07 pathfinder and he noticed a few weeks ago that the radio was not turning off when he turned the car off, the display would stay lit. And it killed the battery one night. Sometimes it would turn off, but then it would come back on. I eventually removed the fuse so it wouldn't drain the battery. But he noticed yesterday that the radio came on again for a short time ~30 seconds and then went off.
This is the stock radio that came with it and nothing has been changed. I initially was thinking that there was something internal in the radio with the display not turning off, but now I'm not sure.

Does anyone have any ideas what to check or have seen this before?

Thanks,

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post #2 of 5 Old 09-08-2016, 07:45 PM
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Perhaps the 'always on' power feed to the radio is somehow shorting to the 'igntion power' feed? If so, this is likely going on inside the radio unit...so you might want to source another used HU one and swap them out. I don't think a harness short could cause this...but would need to check the FSM to see what else would get 'back powered'...and I suspect the list is long enough to blow the radio fuse 10x over.

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post #3 of 5 Old 09-15-2016, 02:33 PM Thread Starter
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Thanks for the response. Since then the radio came back on and killed the battery. I've already pulled the fuse under the hood, does anyone know if there is another fuse for the radio? or have a link to a diagram anywhere?

Thanks,
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post #4 of 5 Old 09-15-2016, 02:55 PM
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Quote:
Originally Posted by poseyj View Post
Thanks for the response. Since then the radio came back on and killed the battery. I've already pulled the fuse under the hood, does anyone know if there is another fuse for the radio? or have a link to a diagram anywhere?

Thanks,
Have a look at page AV-12 or thereabouts

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post #5 of 5 Old 09-16-2016, 12:52 PM
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Have any other aftemarket things been done? It's not too unlikely that an "always on" was tied to an "ignition" line somewhere. My dad's boat suffered from this same problem due to a previous owner's creative wiring.

Actually, in thinking about that radio, I was surprised at how it worked.
"Always on" is fed to that radio with a thick wire.
A very thin (or was until I rewired it with 12 gauge marine wire) "ignition" wire tells the radio when to actually draw full power from "always on" for more than just retaining memory.

Assuming your stereo works the same, it thinks the ignition is on. Either externally because the "ignition" wire is hot (get a multimeter to check) or internally due to some other oddness.

Whatever the reason, I suggest using a multimeter to see if "ignition" is incorrectly hot at all times. If it is, then the car is most likely* your problem. If it isn't, then the stereo is your problem

*I suppose it's possible that a crossed connection in the stereo could make the "ignition" wire hot, but I find that unlikely.
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