intelligent key light blinking

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jimboteque
Posts: 17
Joined: Sat Feb 26, 2011 8:09 am
Car: 2007 Altima 3.5 SE CVT

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Guys, my intelligent key security light has been blinking constantly since I got a second key fob programmed for the car. Any thoughts? Both the keys work great, and everything appears normal except for the fact that the security light is blinking nonstop. What should I do? I know the dealerships charge a ton to reprogram the keys and/or do anything with the computer system of the car.


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el_blacky06
Posts: 942
Joined: Fri Oct 02, 2009 9:40 pm
Car: 2007 Nissan Altima Sedan 2.5s 6MT
Location: Fontana, CA
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I believe that's when the battery from the key is dead. Mine has been dead for like a full year litterally lol you could always reprogram it. There's a thread in here somewhere, ill look it up for ya
*edit*
Here you go- how-to-info-reset-ecu-pull-codes-reset- ... 25400.html

jimboteque
Posts: 17
Joined: Sat Feb 26, 2011 8:09 am
Car: 2007 Altima 3.5 SE CVT

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Both keys work perfectly, so I doubt the battery is dead in either of them.

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el_blacky06
Posts: 942
Joined: Fri Oct 02, 2009 9:40 pm
Car: 2007 Nissan Altima Sedan 2.5s 6MT
Location: Fontana, CA
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Try to reset the ecu. I automatically assumed since it has good batteries, it might of not gotten reprogrammed

jimboteque
Posts: 17
Joined: Sat Feb 26, 2011 8:09 am
Car: 2007 Altima 3.5 SE CVT

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What does ECU stand for? And is it possible that resetting this will screw something else up?

DReed86
Posts: 1065
Joined: Mon Dec 01, 2008 1:36 pm
Car: Altima Coupe 2008 SE 3.5 White CVT
Location: Chantilly/Centreville, Va

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I had the same issure in my 2008 AC once I changed the battery problem was fixed.

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RicerX
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Joined: Thu Jan 29, 2009 9:36 am
Car: '20 Titan Pro4X
Location: Southeastern US

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ECU - Engine Computer Unit.

Resetting it likely isn't what you need to do. The light will blink if the battery is low (even if the remote you're using seems to work perfectly, the car will detect a weaker than optimal signal, causing the light to blink.)

For $3, I'd start with a new battery in the key. If that doesn't yield a different result, return to the dealership at which you got the key programmed and have them troubleshoot.


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