I have tried to look though this tread but havent seen anyone with this issue. 2017 2500 tradesman with no wiring for seats . I previously did the 8.4 conversion, then added heated and cooled seats, I have all the harnesses made, and connected. Turned on the soft keys on the 8.4. The heated and cooled seat button will light up for approximately five seconds, then turn back off. Only thing I don’t have is the hard keys (i have the aux panel so cant use the hard keys), heated steering wheel and clock spring. Anyone else had this issue? I have confirmed wires and in the correct positions and all connections and tight. I thought I was able to get the seats to work without the steering wheel anyone know if this is true?
Also I read so many threads when I was preparing I believe I had read where people got it to work without soft keys but had to have the hard keys . Maybe check thru the thread again ?
Its been awhile since I last posted here. Thought I add a little info with the hope it is somewhat helpful.
I have a 2017 SLT 2500 regular cab which has the snow plow pkg. From the factory it had NO heated/cooled seats or heated steering wheel since those options were not available in a R/C truck. I added all of that. Since I had the snow plow pkg I too had the aux buttons, but I did NOT need to add the hard buttons. The heat/cool function work through the soft buttons on the 8.4 just fine without the hard buttons
I guess you used the AlfaOBD program to turn on the seats?
I checked my notes (like I said its been awhile and I am getting OLD....lol) and have the following settings:
1) Front Heated Seats Present
2) Front Ventilated Seats Present
3) Auto on Driver Comfort Seat CSM
4) Front Ventilated Seat Present
5) Heated Seating Material: Perf. Leather
Hope it helps.................good luck!