2010 theft light will not start

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mbtech2003

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My wife’s 2010 will not start with the key randomly. Both keys we have do the same. Theft light flashes. It will start with the remote start factory setup. Thoughts on this??

thanks!!!
 

Jon1985

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I had that happen to my 2010 EL Limited couple years ago I don’t have remote start installed on mine though can’t say on that part but Mine went into limped mode one day with a flashing wrench light I was able to get it home but after that refused to start after that with the theft light flashing did everything cleared PCM memory cleared fault codes . It was throwing Communication error codes I had it towed to my Ford Dealership I give up messing with it . It turned out to be a Computer module inside the transmission that’s went bad My dealership told me when that went The whole high speed network within the vehicle stopped working and stopped communicating with each other modules. Causing the theft no start it actually killed my battery too . Hopefully that’s not your problem too that repair bill was $2,000 to replace that Computer module.
 
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mbtech2003

mbtech2003

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Yeah I read about the cable in the trans doing that. If it didn’t start at all. Maybe. I have no cel. And it will allways start up
 

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