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Message: [QUOTE="PyroFighter, post: 1560028, member: 13638"] Just to sum this up for anyone else having this issue. Replacing the TCM fixed the problem. I don’t know how a bad TCM can lock out the PCM but it did. Here is a rundown for anyone who runs across this post- 2008 F350 6.4 with the original Sprtn Dashdaq, it was erasing modules when my dumb ass wasn't paying attention and misread what the screen said and turned the key off. I immediately turned the key back on and the programmer said something along the lines of "programming failed load stock file and try again". Well now the dashdaq could not connect to the truck, PATS light was going crazy, truck would no crank/ no start, odometer just showed dash marks, and nothing would connect to the truck (I tried an edge cts, EZ lynk, Ndash, and Dashdaq) Finally I was able to get forscan to connect by inputting the part number from the sticker on the PCM. The PCM showed a U2050 code along with the ABS, TBC, RCM, and IC modules all showing no PCM communication and If i recall the ABS module also had a vin mismatch code. So at this point I'm thinking the PCM is toast but then i realized that Forscan wasn't showing the TCM. So after some google searching I finally decided to roll the dice and called Airfish automotive (shoutout to thier customer service), the guy on the phone said they just so happen to have a truck there that should have the TCM I need and that he would call me back in an hour. I bet it wasn't 30 minutes later he called me back and said it was an 8A and that their IDS showed it to be working properly, I then paid them and he shipped it that day. Once the new TCM arrived I installed it and then tried loading the stock tune again which worked perfect, then loaded an aftermarket tune which also went perfect. Truck is now back up and running, the only issue i have now is the green wrench light is on and i don't know why, forscan shows nothing. My best guess is the other TCM has a different strategy code or something. [/QUOTE]