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2015-2016 F-150 – Trailer Disconnected And/Or Trailer Battery Not Charging Displayed In The Message Center
Some 2015-2016 F-150 vehicles may exhibit a trailer connected then trailer disconnected and/or a trailer battery not charging message displayed in the message center when no trailer is being used.
To correct the concern, reprogram the Trailer Module (TRM) to the latest calibration using IDS version 98.04 or higher.
Make sure you are connected to the internet when entering module programming to obtain the latest updates.
Calibration files may also be obtained at www.motorcraftservice.com.
Service Information & Reprogramming
Software necessary to program electronic modules to the latest calibration level, perform module initialization (PATS), and set Programmable Parameters on Ford, Lincoln and Mercury vehicles.
Ford Module Programming (FMP) is a software application that allows subscribers to program electronic modules on Ford, Lincoln and Mercury vehicles. It can be used for:
- Reprogramming emission-related (OBDII) modules on some vehicles manufactured in 1995 and all vehicles manufactured from 1996 to the present
- Reprogramming or reconfiguring non-emission-related modules on many vehicles (UBP and MS-CAN not supported)
In addition, module initialization (PATS) functions such as Keycode Erase/Reprogram and PCM Parameter Reset can be done using this application.
J2534 Device 
using Ford Module Programming (FMP) can Reprogram and Configure most Modules.
Latest Calibration Information
Module Build Data (As-Built)
Use VIN to obtain As-Built data
