temp control not working. Baffled

Need help from the collective. Installed Pioneer head unit and when everything was put back together the temperature control is not working. Fan and selector dial work but only hot air coming out. Also, A/C does not light up or work and recirc light does not come on. All connectors that I am aware were unplugged are plugged back in. Re-checked 5 times. Fuses under dash and in engine compartment are all good. Thoughts?

 

First thing I'd do put the factory head unit back in and see if that makes a difference.

 

You did plug in BOTH ( 2 ) Connectors right?

 

Check your connections. I suspect something isn't quite seated right.