PCM reset?

Csilva187 · Apr 22, 2014

So I apparently fuct something up. Truck won't start anti-theft light flashes no crank, won't communicate with my newest Tuner prob, tried bumping of hot wire, tried disconnecting batteries and etc. I'm assuming I need to have PCM flashed or reset? Anybody deal with this? Everyone locally needs truck In whole and can't do anything with just the PCM? Any help besides the obvious dump the ***'r in the river. Bad week and it's only Tues. Any help would be awesome. Thanks fellers.

webb06 · Apr 22, 2014

What were you doing that caused this?

Csilva187 · Apr 22, 2014

Long story short tuner swapping, batteries disconnected, and wrenching on stuff. Stock file on it now, it's deleted of course and been sitting. So threw a tuner at it and got to the "turn key on" part, that's when it froze I guess?

Csilva187 · Apr 23, 2014

Any secrets why a vehicle will not communicate with IDS at ford dealership? He can't get it to take any factory calibrations and has too manually enter VIN?

sootie · Apr 23, 2014

yuuuuup, the pcm is in pats mode and has locked you out.

one thing you can try is turning the ignition on and then going under the hood and jumping it using the jumper wire by the passenger battery. that may reset it.

if not, you must reflash the pcm at the dealer. if the pcm is fried (not likely) i have a used one here with a delete tune stuck in it....

Csilva187 · Apr 23, 2014

Copy that. He's saying that it don't have a pats system? Lol he can't get it to reflash? Man oh man it's a small town dealer. I'm in a mess. Any pointers? He said I can go down an watch or try.

Powerstroke Man 6.4 · Apr 23, 2014

Csilva187 said:
Copy that. He's saying that it don't have a pats system? Lol he can't get it to reflash? Man oh man it's a small town dealer. I'm in a mess. Any pointers? He said I can go down an watch or try.

Is your truck a lariat king ranch etc? If it is it has PATS if your truck is a XLT XL it doesn't have pats.

Powerstroke Man 6.4 · Apr 23, 2014

Csilva187 said:
Copy that. He's saying that it don't have a pats system? Lol he can't get it to reflash? Man oh man it's a small town dealer. I'm in a mess. Any pointers? He said I can go down an watch or try.

If the truck wont communicate with IDS and all else fails. Your TCM or PCM could be fried.

WoodBoy · Apr 24, 2014

A friend of mine just went through pretty much everything you mentioned. Try removing the trailer brake control module and see if it works. IDS wouldn't connect, no communication through tuner, no start, etc. The pcm is locked down for protection currently is what it sounds like..

Edit: I noticed you said you tried jumping the starter.. His truck would crank when he done this, but only like one gauge worked on the dash and his truck wouldn't shift so yours may be PCM/TCM related

Csilva187 · Apr 24, 2014

I will brother! Thank you. I'm actually taking a personal day to try and get this truck going tomorrow. They put a claim I guess you can call it with this ford hotline. Stinking guys trying to figure it out you know, population here might be 2800 with half that working the Bakken.

Csilva187 · Apr 24, 2014

WoodBoy said:
A friend of mine just went through pretty much everything you mentioned. Try removing the trailer brake control module and see if it works. IDS wouldn't connect, no communication through tuner, no start, etc. The pcm is locked down for protection currently is what it sounds like..

Edit: I noticed you said you tried jumping the starter.. His truck would crank when he done this, but only like one gauge worked on the dash and his truck wouldn't shift so yours may be PCM/TCM related

Doing same thing, One gauge, shifter stuck in 3, and all.