2014 Bighorn --> 2015 Longhorn interior swap (ITBM Not working)

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G56_forrest

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Mar 29, 2026
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Location
Ojai, california
Ram Year
2014
Engine
6.7 Cummins
Hello, this is my first post on RamForum. I have a 2014 Ram 2500 CREW Cab cummins bighorn, i pulled the interior out of a 2016 Laramie Longhorn MEGACAB (2500 diesel also) and have swapped practically everything back from the TIPM, so main chassis harness, door harnesses, dash harness.
I kept my TIPM (from bighorn) and since the swap ive faced many little issues. I have AlfaOBD, and im decently familiar with it.

but the problem is: on startup, i get a message that says: SERVICE ELECTRONIC BRAKE SYSTEM, and my trailer brake section in my cluster says "TRAILER BRAKE NOT CONNECTED" , which it is. I checked the fuzes, and connectors going to the module, no luck. Maybe this is a programming thing in Alfa? Im unsure.

Also to note: ever since the swap, my adjustable pedals have power but dont move. And also when I hit the brake pedal, (ign on) i hear a clicking noise inside the ITBM.
 

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crash68

ACME product engineer
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Mar 20, 2016
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Ram Year
2015
Engine
3.0 EcoDiesel
Just an FYI there are certain modules used in these trucks that are for certain model year ranges. Also there are modules that are 2015 specific like the ITBM. 2013/2014 has a specific own part number and 2016-2024 have also have a specific part number.
 
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