I did a dash harness and dual climate control conversion to my truck got everything back together everything works except HVAC controls.Blower stays on constant speed have changed out out blower motor resistor with Oem one.
I did this because I wanted the console shift and the 8” display purchased a conversion from foursynctech. I can make changes on 8” display and on the radio bezel but doesn’t change on the truck. Also I hooked up a scan tool to truck and can control the HVAC system through the tool, move, Blend doors and control fan up and down. I’m thinking it’s a programming.
Please help.