Dependa on the defination of the word senser. The main sensers that tell the computer what's going on and then thiers another set of sensers that tell the driver what's going on the ten are you just talking about the engine or the transmission or the brakeing system or the aircomditioning system. The ABS braking system has a fluild level senser, a wheel speed senser ( one at each wheel) if your solara has four wheel drive it's got a rear differantial speed senser and a transmission out[ut speed senser. then the sysyem uses sensers in other systems like the bdy control sysyem to get anbieant temperture and alaitude information and the stabitly system has a GPS conection and real speed and direction and conpass readings all used to just get the ABS system working and the traction control system That shares these sensers also has inputs from the engine conrol system as to trottle position and air flow and RPM and may require the engine control system to stall or satutrer the engine or even limit RPM to regain traction or get the vehical headed in the right direction. The air conditioning system depending on the yype of system installed and what factory it was made in and what country it was made for sale in can change the number of sensers that's in it quite highly. Some of the zone indepentant controlled fully automatic systems ( top of the line) can have as many as 5 temperture sensers alone never mind 1 or on some models two sunlight sensers. The freaon pressure sensers as many as four and no less then two. An RPM senser on the compressor clutch and information from the engine system as to throttle position( it turns the compressor off in wide open) and high RPM ( it turns the compressor off to prevent over speeding the compressor and to give the car all the power it can to go fast.) the evaporator temperture as to not allow it to freeze. amoisture senser as to direct dry air onto the windshield to clear it as a safty concern. I've not even begun to tell above the engine or the transmission or the theif recovery systems or the antitheif systems.
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