You posted this a s an additional question on a 5 1/2 year old answer about another issue. We can no longer determine the exact model using the last letters of the serial number as EveryMac has changed its policy on that. I'll give the link to where to enter the full serial number. Have you run any tests to determine which sensor you have an issue with? Why do you think it's a sensor? What are your symptoms? What will it do and what won't it do?
http://www.everymac.com/ultimate-mac-lookup/