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2003 MDX Key Fob door locking/unlocking issues

 
Old 08-13-2012, 12:58 PM
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2003 MDX Key Fob door locking/unlocking issues

Hey guys,

So its been about 2 full days now and just out of the blue in the morning my remote key wasn't unlocking all 4 doors to my mdx. So I figured maybe the remote is dieing or happened to be un-programmed so i grabbed the backup key and that too wasn't doing anything. So the only way of entry is using the actual key in the drivers door to unlock/lock that door, but the key wont unlock/lock any of the 3 remaining doors. The only way to lock/unlock the other doors is physically pushing down the button on the inside of the door.

Now im sure this next part is important: When I was inside the car pressing either the lock and unlock button on the remote key, I heard the normal clicking that you would hear. But the next day I couldn't hear it anymore and now there's no noise. Hmmm. I would like to include that the inside chrome unlock and lock levers don't work at all (the ones on both the drivers and front passengers side).

I've tried to read around about similar issued but it seems like there are several checks to determine the source. There has been recent repair with the APP (acceleration pedal position) sensor but I doubting that has anything to do with it. Thank you for any comments and support and I'll be happy to provide any more information or clarify the problem if this post didn't explain the problem clearly.
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Old 08-13-2012, 05:23 PM
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You'll need a new battery(for the car, not the remote) soon.

Happened to mine before. Had no problem opening the doors with the remote when I bought the X in February of 2010. When summer arrived, the remote wouldn't unlock the doors.
Then the following winter, the battery died!
Since replacing the battery, it never occurred again!
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Old 08-13-2012, 06:35 PM
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Okay sounds good! I've also noticed that the car does not arm too. The red blinking light on the drivers door doesnt come on and I believe the car doesnt even arm entirely. I'll check the battery though.
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Old 11-05-2012, 06:53 PM
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I am having a similar issue with my 2008 MDX. The driver's door does not always lock with the FOB. I can hear the lock motors actuate, the red blinking light on the dash comes on, but the driver door does not lock while all three other door do. Also the locks will randomly lock and unlock while driving.

Could this be symptoms of a dying battery as well?
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Old 04-07-2019, 04:03 PM
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Hope this helps!

















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