I went to an Apple certified store, they ran a diagnostic on the mac and they told me something is wrong with the logic board, and that I have to change it. They told me it's gonna cost around $1000. I didn't do it. I removed the logic board and checked both sides, there wasn't any visible water damage, and since I spilled a few drops of a liquid on the trackpad only, I thought it might worth trying to replace the trackpad first. So I changed the trackpad, and now everything is working perfectly!!! I ran the Apple diagnostic and I don't have errors anymore!!! I just saved $1000! Apparently there are two temperature sensors inside the trackpad, and they didn't work normally on mine (probably due to the water damage). See this screenshot, there is now two more temperature sensors visible with TG PRO, "Trackpad" and "Trackpad Actuator": So if you have error codes "PFM006" and "PPN001" after a water accident on the trackpad, and if your logic board looks fine, try replacing the trackpad, even if Apple...