Hello Bob,
Welcome to the forum!
There is a modification sticky on the Crack board regarding the output jack. If you have implemented this modification, then 6 and 10 will read 0.
Otherwise, there are a few things to check. First off, all that connects to terminal 6 is a single wire and the banded end of a capacitor. Check where the red wire connects on the other end. It should connect to the "ring" terminal of the headphone jack, which is the middle lug on the inboard side. If you have it connected to the "sleeve" terminal (the bottom row), then one would expect a reading of 0 Ohms here.
-PB