Hello, I'm new to the forum and do not have a Challenger. I do have two Grand Cherokees, one Jeep Comanche, one Jeep Wrangler, and one 1953 Dodge M37 though. I recently completed an engine swap in my 2013 Jeep JK Unlimited removing the Pentastar and installing a 5.7 Hemi from a 2018 Ram 1500. I installed a GPEC ECU happens to be the same part number used in the 2012/13 Challenger. My understanding of how the cruise control works (maybe wrong) is that the original Jeep ECU receives cruise control signals (SC1 and SC2) directly from the steering wheel switch. The Challenger ECU does not work that way even though it uses the same switch. Instead, the Challenger cruise control switch terminates to the steering column control module (SCCM) where it converts the switch signals to canbus messages that are sent on the canbus to the ECM. I am trying to replicate this in my Jeep by using a microcontroller. I have programmed the microcontroller to recognize the different switch positions but have found no canbus message information anywhere and was wondering if anyone here may have done canbus sniffing in their Challenger. If I could program the microcontroller to send the right canbus message when I press certain cruise control buttons, I think I could make this work. I am hoping that someone here may either correct my assumptions and steer me in the right direction or maybe someone has deciphered canbus information and could help by providing the canbus messages related to the cruise control. Thank you very much...
I am thinking you would need a Engineer from FCA to provide you with that info. You might get lucky and ask someone over @ HP Tuners as this company unlocks the Ecm's so you can tune the Challenger & Chargers.
I’m currently doing the recon. I have a Uconnect 5 I’m wanting to adapt to work, and customize as well. So I’m looking to reverse engineer and sniff and all the goodest of stuff.
