Some information to start. I have a 2002 330CI. I began having some cooling issues so I decided to beef up the system a little bit. An aluminum radiator and flexalite controller later, I begin to have AC issues. The blower will run but no cold air will begin flowing. The FSR is new, fuses and relays are confirmed working, and the compressor clutch was confirmed to be working. My question is: if the stock fan is removed and nothing plugged in, will the IHKA fail to send a signal out to the compressor?