hi all could do with some help please, iv got a celica gt4 st205. the problem is the coolant fans are not kicking in, checked the fan sensor in the bottom right corner of the rad, joined the terminals together and the fans dont come on. checked the polarity one side was positive and the other was negative,im thinking of replacing the 3 coolant fan relays.also the cabin heater motor is not working, i have removed the air-con rad, pump, and air con pipes in the engine bay dont think this is the problem tho any ideas ???????