Trackpad and Keyboard do not work

I spilled soup to the left side of my macbook pro 13 inch 2015. I did not see any liquid inside the ports, so I did not do anything. Then two days after, the touchpad and keyboard do not work (the forcetouch trackpad still has feedback but does nothing). So, I did some research and found that this problem is usually caused by the trackpad’s cable.

I have 2 questions regarding this issue:

1. I’m about to buy a replacement cable from iFixit, but I just want to make sure that the problem is actually caused by the cable not the soup that I spilled. Has anyone ever have this trackpad and keyboard issue from liquid spill?
2. I have a screw driver with a label T5 and T3, are they the same as T5 torx and T3 torx? if they are the same, do I only need to buy P5 to open the back of the macbook, then?

Thank you