Hello all,
First time trying this forum. I hope someone can help with a dead HVAC control module. I believe that it started when I used my remote start to start my truck. When the truck is running by the remote nothing works on the HVAC as per normal until you insert and turn the key...at this point everything should work. The only thing not working now no matter what I do is the HVAC control. I tried resetting everything by disconnecting the battery overnight and by using the remote again in hopes that it would allow the HVAC to power up but nothing works.
Has anyone had this issue before and how did you solve it.
FYI, I know the control module is good as I tried it out with a 2017 Sierra and it lit up.
I hope his makes sense.
Thanks in advance!