One nice feature of (some) Thinkpads is that the AMT and ME can be "permanently disabled" through the BIOS, presumably by blowing a fuse or similar. Check if yours has this capability.
Otherwise check for updates at http://pcsupport.lenovo.com.
Otherwise check for updates at http://pcsupport.lenovo.com.
I'm don't mean to sound oppositional. I appreciate this being mentioned.
I'm just not willing to trust it without knowing in detail that and how it works.