No crank, no start issue?

2010 FORD F-250
192,000 MILES • 6.4L • V8 • TURBO • 2WD • AUTOMATIC
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CHUY4848
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We recently acquired the truck listed above Power stroke a few weeks agon and it worked fine when we got it. The previous owner had one of those cheap $13.00 ELM327 Wi-Fi scanners in the obd ii. I decided to try out the revheads app (just reads your rpms to imitate engine noises over obd2). I drove it around like this for a while and it worked fine, parked it and then disconnected from the scanner. When we went to turn it back on, it wouldn't crank, start, anything, just a click. We checked the batteries, fine and the fuses seemed to be fine too. Used that same crappy scanner to pull codes and got U0101 and U0073, but then tried to scan them later in the day and there were no codes. We got it to turn on by directly powering the starter but now it doesn't seem to want to actually move. You can switch gears, but it won't shift or accelerate to any drivable speed. Is it possible that somehow using the app with the scanner could have caused this? As far as I know the app doesn't write any data to the computer so there should have been no reason for it to cause this. And what could be the fix?
Jul 23, 2023 at 2:07 PM
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STRAILER
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Yep, those cheap ALDL scanners are nothing but problems for the CAN when they short out. The U0101 and U0073 trouble codes in a 2010 Ford F-250 typically indicate communication problems within the vehicle's network or data bus.
Jul 24, 2023 at 1:26 PM
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CHUY4848
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So, the scanner could have caused this right just because of its cheap nature? The only move would be to take it to a mechanic then, correct? Hopefully the fix isn't too expensive, but it seems like it will be. Thank you for your help!
Jul 24, 2023 at 2:42 PM
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STRAILER
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Yes, they could have caused the issue. But I would check all fuses with the systems on to see what happens.

Here is a guide to help:

U0101 - Lost Communication with TCM (Transmission Control Module)

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If all fuses are good, I would try removing the TCM and send it out for testing and or replacement.
Jul 25, 2023 at 6:43 PM