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I lost one of my key fobs and I just purchased a new one. I tried to program the new fob, but the system would not accept it. I even tried programming it using the Tech 2, but still no success. I went to the dealership and they couldn't get the sysem to accept the new fob. The tech told me that the receiving module may be malfunctioning, but he could guarantee that replacing the module would solve the problem. How can I solve this problem? thanks
 

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2003 STS w/BoseNav, 1993 Deville, 1985 Deville
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It does indeed sounds like the Door Unlock Receiving Module is malfunctioning. I forget where it is, but you might try locating it, wiggling some wires, etc, before you tell the dealership to replace it.

If he could guarantee the new module will fix the problem, then there is little risk in letting him do that. If it doesn't fix the problem, you're not out of pocket anything.

I hope the new module doesn't cost you too much.
 
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