2005 Ford F-150 PCM Replacement

2005 FORD F-150
87,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
ERBAS
  • MEMBER
  • 3 POSTS
My 2005 F150, 5.4L will enter a forced idle mode while I am driving. The vehicle displays three error codes, P2104 TAC - forced Idle Mode, P2111 TAC - stuck closed, P2111 TAC - stuck open. I have replaced the throttle body and Throttle Position Sensor. The Accelerator Pedal Position sensor seems to be working fine. I've also had the computer refashed after all this. Still same issues and codes.
I have come to the conclusion that the PCM is bad. I located another PCM and it will be delivered today.
Can someone post the steps for switching out the PCM? Will my ignition key have to be reporgrammed afterwards?
Oct 21, 2010 at 2:47 PM
Advertisement
Avatar
BLUELIGHTNIN6
  • ✓ASE Certified Mechanic
  • 16,542 POSTS
  • ASE Certified Mechanic
Hello and thanks for donating Below are the replacement steps for your PCM, you will need to have the PCM and keys reprogrammed by your local FORD dealer though. The PATS (alarm system) will disable the vehicle when you replace the PCM until it has been programmed properly.


https://images.2carpros.com/forum/automotive_pictures/261618_Noname_2815.jpg


https://images.2carpros.com/forum/automotive_pictures/261618_Noname2_920.jpg

Oct 21, 2010 at 3:02 PM
Avatar
ERBAS
  • MEMBER
  • 3 POSTS
asside from the key, what has to be programmed if the PCM matches the original? I have an Edge programmner that can do things like tire size, gear ratio....will that do?
Oct 22, 2010 at 12:58 PM
Avatar
BLUELIGHTNIN6
  • ✓ASE Certified Mechanic
  • 16,542 POSTS
  • ASE Certified Mechanic
just the PCM itself aside from the keys, your programmer should work
Oct 22, 2010 at 7:48 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.