Just finished replacing the Touch Bar on my MacBook Pro 15” 2017. For anyone else attempting, on the 15” model I didn’t need to remove the display, but I did need to remove the logic board and the left fan to get to the flex cables that attach the Touch Bar to the logic board. A few notes on my repair, I didn’t use a heat gun (didn’t have a small enough tip that would work without melting the keys). Took about 2.5 hours to completely remove the Touch Bar by slowly breaking it with tweezers and then using citrisolv and a metal splunger to remove all the adhesive and remittance. I wouldn't recommend unless you have the patience. Better to a heat gun with a small tip as mentioned by dan, just be wary of the keys. Thank you Dan for the answer/links and Magd for posting!

It's one of the card readers, just disabling it fixed the issue for me