Chosen Solution
I have a 2015 MBP 13" Retina (A1502) which has a strange kernel_task issue and shows errors in Diagnostics —— PPN001( i don’t know what this code means) , PFM006(SMC issue), PPF003(Fan issue). I want to be able to try cleaning out the insides, especially the temp sensors. Can someone help me regarding their locations?
I don’t think general cleaning will address these errors. Diagnostics finds electrical faults not general temp issues. You likely need to take the logic board out and do a deep inspection looking for corrosion damage and/or damaged components. Can you fill us in on what happened with your system. Did you have a spill or get it wet at some point?
Check board for liquid damage may have a sensor issue. Also inspect trackpad flex and trackpad for any corrosion on the connection points.
