Climate Control Relay??

Alright heres my problem. My cars AC fan wont turn on. i've tested the blower motor thats good. I replaced the blower motor resistor that wasnt it either. My best guess is theres a relay for the climate control turning it on and off. If anyone can help me out with this i'd appreciate it.

THANKS

Welcome to AF, what did you forget here?

I haven't seen a Caddy that uses a resistor--or a climate control relay--- they all use fan speed control modules- But then I am spanning 20 yrs- can only guess what year yours is.... Wiring connectors - hot spots would be where I'd look-