Where is the radiator switch on the radiator located

So is there more than one temperature sensor, is there a temp switch located on the radiator? I checked the Rad fan relay and it’s working, I assumed the ac ones were working because fans come on when I turn a c on, however today I unplugged the Temperature sending sensor and the fans also run that way without the a c on, can I buy one of those 20$ kits at advanced and just set up a switch of my own to turn the fans on and off, I think the car would stay cooler with a c off and fans on while idoling, however I think maybe it’s 2 Separate problems, fans not coming on at proper temp, and maybe the a c compressor is going out not sure. But I didn’t have this problem until the summer heat kicked in. Could the resister attaches to the radiator be bad as well?.... I will check grounds and clean them up and see if that works tomorrow thanks

Also if one of the Ac relays be faulty would it cause the fans not to come on at proper temperature even though the Ac isn’t being used

Ok, so the thermistor (resistor) is a control switch for the A/C compressor, but not related to fan operation. The A/C fan is controlled by the triple switch. It is mounted behind the passenger headlight, and is operated by signals from the pressure sensors on the A/C refrigerant system. So those components can all be cut out of the mix. The ECU is the sole means of powering the condensor fan when the A/C is turned off. So, if the ECU is not telling the condenser relay to turn on, or the relay is bad, or the circuit is damaged (physically), no fan unless A/C is on. Here's the thing that bothers me. If the A/C fan and radiator fan are running when the A/C are turned on, there is no reason the engine should be overheating. That leads me to believe that there is another issue going on with the system besides the fan. The first thing I would do when I discover there are no leaks, no air in the system, and the fans are blowing with the A/C on is put the car in neutral and raise the engine speed when the car begins to overheat. Raising the engine speed allows the water pump to push more water through the engine, and this will let you know if the water pump has failed. If raising engine speed slightly does not cool the engine, but raising it to around 2000rpm does cool the engine, you probably have a bad water pump.