E5 is the other Key-On +12V. +12V should go to it.
Yes, I could tell that from your logs; in all logs from my 94 and 95, the only time the CCM does not send the F0 poll is when the key is off. As soon as the key is inserted and turned to run, the F0 polls begin. So since your broadcast messages look totally normal save for the lack of F0 polls, that looks like a normal key-off state.
The $10 broadcast message is for the C68 HVAC system, and contains data the CCM has gleaned from the $41 broadcast from the ECM. This is normal. Additionally there is no return message to a $10 broadcast; it is sent into the void and it's up to the HVAC Programmer to do something about it on its own. There is no handshake or anything like that involved.
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