Mercedes-Benz Forum - View Single Post - Resurrecting old topic...key fob only works once after syncing procedure
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post #1 of (permalink) Old 06-16-2019, 08:25 PM Thread Starter
ed7c9
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Date registered: Jan 2018
Vehicle: 01 ML55
Location: Wentzville MO
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Finally got all my door actuators working properly but still have an old problem. After programming the fob, it (the fob) works only one time. Whatever choice you make following the sync is the only response you get; after that it does nothing (lock/unlock wise)

Example: key to pos 2, removed and while holding lock I press unlock 5 times. At this point I let go of everything and to test it I press the unlock button again and voila, the doors unlock. After that it refuses to work. Only way to make it work is to resync again but still only does the one command. It’s one and done following the sync.

I’ve seen old threads on people having this issue but no real resolutions. Figured I would wait until my door lock actuators were all working to try again and I’m there now so any help is appreciated.
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