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Lost Comm During Reflash, What to Do?


So, you’re cruising along with a reprogramming job and you lose communication with the vehicle. What’s worse, you haven’t completed the key relearn yet. Now what do you do? Ron from New Jersey did a bunch of research and scrambling when this happened to him while reprogramming a 2011 Ford Edge. Here summarizes the dilemma: “Here’s the problem. You need a working learned key to turn the car to on (dash lights on, engine off) to gain access to the PCM to learn the codes. Can’t do it; key codes are gone by virtue of the PCM replacement and computer reflash. Now what? No way in….or is there?” Check out his post to learn how he resolved the issue.

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The International Automotive Technicians Network is the largest network of automotive repair professionals in the world: a group of 80,000+ automotive professionals from over 160 countries. The members of this group exchange technical knowledge with their peers around the globe, sharing 1.8 million years of experience. iATN has been proudly serving the automotive service and repair industry and the needs of professional automotive mechanics around the world, for over 15 years.

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