Glenn Trent

Just bought an 05 tl with 172k miles and cannot figure out why the a/c or fans aren't working. I have replaced the relays involved and verified they work. I have jumped all 3 components and varied they work. It appears I do not have a triggered ground to activate the components. When I turn on the a/c I get no response in the car at all, no idle change, no relay engagement, no ac clutch engagement, no nothing. Also, i have never seen either one of the fans turn on. Has anyone had this issue? Can anyone shed some light on the problem? Thanks in advance!