A quick Google search came up with two pin diagrams, which I have included below.
There is no individual pin or contact that is only for the transmitter.
If a flash works normally, I would suspect your trigger was damaged in the fall.
When we have similar questions here, it's almost always the same thing.
I'm going out on a limb here and assume you have the transmitter properly attached to the camera's hot shoe with on-camera flash enabled in the camera's menu. As far as the camera is concerned, the X1T is the flash.
I'm also going to assume you have the 430EX II properly attached to the ...
If you want to control the 430EX II via radio, you need to connect a compatible radio receiver to the hot foot of the flash. The only wireless capability the 430EX II has own its own is optical wireless control using Canon's optical wireless protocol.
The Godox X1R-C is the only radio receiver not built into a Godox flash that I'm aware of that is compatible ...