dont confuse much with sensor, your belt broke and thats why your engine temp neddle started climbing up because the belt that drives the compressor also drives the water pump of radiator, have it checked by toyota motors if they say sensor then worry about it but in my experience is its just either wrong compressor oil in system causing sludge or your conesndor is choked as cleaning made the problem better my bet is with condenser, a sensor isn't magic that it works better at night and not in day and gets better after cleaning, i don't think that sensor is at fault, parallel flow condensers can hardly be cleaned from the outside, how many kms is your car driven? if its driven a lot then condensor is choked and can't be cleaned and has to be replaced, your compressor is also making sound because of choked condoesor, if you want to further confirm then goto any ac wala tell him to connect his low and high side gauges and tell you high side pressure, if head pressure is high then for sure your condesor is shot, a brand new one costs 8-9k plus ac gas filling, i suggest you to have it done at toyota motors, they will check head pressure too, note the readings an post them here