Chosen Solution
I spilled some tapwater on my macbook. It stopped working so I opened it up and cleaned the logic board. Now it runs but I noticed that the trackpad got hot to the touch when plugged in, so I believe theres a short on that circuitboard. So I’m currently running the laptop with that ribbon cable disconnected. Unfortunately it is running very slow and has the fan at full blast constantly. Is this caused by the fact that I have the trackpad disconnected? The reason I ask is because I don’t want to spend money buying a trackpad and keyboard if there are additional problems with the logic board.
Sadly Yes! Your system has a system Management System (SMC) which has a bunch of sensors, when you disconnect most everything, you upset SMC, so it goes into CPU Safe mode, lowering the CPU’s clocking and ramps up the Fan as its worried you’ll over heat your system. Time to replace the trackpad MacBook Air 13" (Mid 2013-2017) Trackpad and here’s the guide MacBook Air 13" Early 2015 Trackpad Replacement
