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Error: 4SNS/1/40000000: YPOR- 13.144

I ran the hardware test and got one error message of 4SNS/1/40000000: YPOR- 13.144. I am currently on 10.10.3 using a MacBook Pro from mid 2010, 15inch, with an i7.


From looking around, I can see that there are some similar codes, but the string of numbers at the end is different. I've seen posts saying that look like the logic board is overheating and/or a sensor not working properly.


Anyone have ideas?

MacBook Pro (15-inch Mid 2010), OS X Yosemite (10.10.3)

Posted on Jun 30, 2015 7:05 PM

Question marked as Best reply

Posted on Jun 30, 2015 7:14 PM

Temperature Sensor error.


Your best bet is to take it in for free diagnostic


Genius reservation http://www.apple.com/retail/geniusbar/


on-line https://getsupport.apple.com/GetproductgroupList.action


check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do

3 replies

Error: 4SNS/1/40000000: YPOR- 13.144

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