Guest JoBoo quote name='fishexpo101' post='143949' date='Apr 17 2007, 09:11 AM']Changing the sensor may not do anything for you in this case - the thermistor is usually hooked into a bridge or a voltage divider circuit composed of high precision and stability resistors - the resulting voltage drop across the thermistor is feed into the ECM and pumped to the display. You may be able to get Toyota to change the display in the ECM or be easiest to grab a LCD display with C on it. Some cars can have the user change the metric used for temperature, but I don't remember off-hand if the Corolla did as well - it would be in the Owner's manual if it had that capability. Thanks for the reply. There is no way for the owner to 'toggle' the units they way yuo can in some of todays cars, pontiacs for example. I am curious about changing it in the ECM. I wonder is it a wholesale metric vs imperial setting that refers to speedometer and everything else, or if the outside temp. can be changed over to metric manually. it would be interresting to see whether or not swapping the display would work. Unfortuantely, it is rare to find a '00 scrapped to recover the cluster, and if I did find one it would be very expensive. I did find this one on ebay: Canadian Cluster from '98 Corolla I wonder whether or not the signal from the ECM is processed at the display, or if the LCD simply displays the output from the ECM. Again, the local dealership really has no idea on how to accomplish this task. Thats why I am full of questions. I am starting to doubt whether or not it can even be done.