when the heat control module goes out does it make the HVAC contol lights go out

 

Cant tell much from your info. always check all fuses involved.


tell more about it.

 

i have no lights on the dash control for heat/ac i have replaced heat control module also replaced pig tail that plugs into it still no heat no a/c, last time this happen i just unplugged then plugged pig tail back in and everything was fine