Oh, okay I see. So is there a visible wire somewhere that I could get to? The sensor looks like it's embedded well into the transmission. I guess all you would have to do is either trial and error, or if you had two different temperatures to measure the resistance over the sensor then you could plug the resistance and temperatures into the equation p1=p0*(1+a*(t1-t0)) to get 'a'. Solving for 'a' would lead to the amount of resistance you need to add to the wire leading to/away from the temperature sensor.