2008 Ford F-250 no start

Azael Diagnostician Pasadena, Texas Posted   Latest  
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2008 Ford F-250 Super Duty XL 5.4L (5) 6-spd (S6-650)
P1260

Hello everyone. So I’m kind of stumped on this 2008 Ford F-250. Well this truck came from another shop were they removed a gps from the dlc after that the vehicle wouldn’t start, because of the theft light. Well they went and replaced the pcm and IV with no success. Now it’s in my hands! They put everything back together with the original parts. Now that I have it here, I tried a parameter reset but it won’t allow me saying this, “this module is config for codes access” “Coded access mode not supported” there is a code P1260 “ Theft detected, vehicle immobilized” also another thing, looks like there’s no pats module around the lock cylinder. Plus I don’t see a wiring for it. seeing if anyone Has dealt with an issue like this before. 

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Michael Owner/Technician
Montreal, Quebec
Michael Default
 

Some fleet vehicles wont have pats (like the police interceptors sometimes don't). Any other codes or any modules not communicating?

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Ricardo Diagnostician
Plymouth, Michigan
Ricardo Default
 

Do a network test and see if all modules are communicating. If I'm not mistaken in that year pats is in the ic and if the ic is not communicating the pcm will wait for a response from ic to see if vehicle has pats on not

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Azael Diagnostician
Pasadena, Texas
Azael Default
 

The IC is communicating. Here’a some pics

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Michael Owner/Technician
Montreal, Quebec
Michael Default
 

Does that vehicle have trailer brake control? i see it has failed the test usually that communicates on the same high speed can as PCM. ive actually had a case were a bad TBC dropped the line & caused a no start.

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Azael Diagnostician
Pasadena, Texas
Azael Default
 

Hey Michael this does not have the tbc. It it does show a code. which is making this confusing

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Ricardo Diagnostician
Plymouth, Michigan
Ricardo Default
 

How does the key look like and does it work on ignition and door? Any chance someone before you change steering column?

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Azael Diagnostician
Pasadena, Texas
Azael Default
 

I’ll look tomorrow. It I can tell you that this is not the original key due to it not having the ford logo on it

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Michael Mobile Technician
Clinton, Utah
Michael Default
 

Some key programmers will alter the North American version of PATS to the European strategy that makes the key learning quicker. For instance no more 10 minute wait, it is instant. The last one I had like this, I had to reprogram the PCM and then do a parameter reset. During the programming it will ask if the vehicle has PATS just say no. Then after the process you will run through the 10 minute…

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Ricardo Diagnostician
Plymouth, Michigan
Ricardo Default
 

Michael , just asking , so when someone with pts does the instant key programming/ parameter reset do they alter something too or is just a privilege?

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Michael Mobile Technician
Clinton, Utah
Michael Default
 

My understanding is that it actually writes to a module and changes something. It would be interesting to compare a before and after data to gain a better understanding. Here in the states we had the 10 minute wait time but in Europe they used incode and outcode much like the Mazda vehicles. The key tools bypass the need to actually input the codes. From what I have studied on late model Fords…

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Azael Diagnostician
Pasadena, Texas
Azael Default
 

That’s interesting. which key programmer have you used to alter it to euro? I have my im508. I might just reprogram it’s tomorrow

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Michael Mobile Technician
Clinton, Utah
Michael Default
 

Auto Pro Pad, Smart Pro, MVP and most likely the Autel im508 and im608. I have not tried the Autel yet. If it gives you the option to bypass 10 min, then it has the feature.

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Bruce Owner/Technician
New Brighton, Pennsylvania
Bruce Default
 

See Service bulletin/ anti-theft and alarm systems /0000052 Make sure there no other after market devices or modded wiring associated with that GPS that looks to have had the system modded. NOTE: If the IC or the PCM (or both) is being replaced, the parameters must be reset in both modules. New or used PCM and IC? Botched when PCM was flashed? Sure it doesn't have a transponder? If it does…

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Azael Diagnostician
Pasadena, Texas
Azael Default
 

The previous shop put a used pcm and ic but never did the parameter reset. so when they brought it to my shop they put all the original pcm and ic back.

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Adrean Diagnostician
Bakersfield, California
Adrean Default
 

I would do as Michael said .. program the pcm using the blank pcm method .. and it will ask if its equipped with pats and click no than. A parameter reset

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JJ Technician
Quincy, Massachusetts
JJ Default
 

Does it start with the gps plugged back in?

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Joe Manager
Houston, Texas
Joe Default
 

A couple of things here. You must have two unique keys. A lot of clone keys out there. Make sure they are 40 bit keys. New keys work for both the 40 bit and 80 bit systems 40 bit are no longer available through Ford . Make sure all exhaust is in intact and all sensors are plugged in. If the vehicle had a tuner in it and the vehicle has been modified it will go into limp mode and prevent key…

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Freddie Owner/Technician
Houma, Louisiana
Freddie Default
 

I had an 2008 F150 with PATS codes and it would not respond to a relearn we noticed the battery drain was excessive and narrowed it down to A/C relay under the hood on the driver side was back feeding the PCM. Replaced A/C relay and was able to relearn PATS.

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