Pass through if you mean the long Allen head screw that holds the back of the DHC though the door to the external part that's the key cylinder on the driver side.
If you want a guide in English:.
AWR-fix: Door Handle Carrier Repair: 28¢
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You can post questions there when underway. I usually see the posts within minutes.
I've done this repair half a dozen times reworking to the final version in the thread above. If you can't get metal cable ties I used 16ga steel wire the first couple repairs. It needs a shim under the wrap either way and either way is quite literally better than new (non brittle weak link). Brand new will not be stronger.