Huh. I just noticed that the image in post #39 has the same connector pin raised. @jfischer, did you notice this on yours?
Is it supposed to be that way?
The base of the pin on mine certainly looked like it had a shoulder on both sides just above the connector body, and none of the other pins had that. It also pushed in without a fight.
What does that pin go to?
I don’t remember the 6 pin socket being pushed in but def pin 1 of RHC34 pem fan socket was.
The 6 pin one goes to the ESS heater and would not be causing your issue. Its def the PEM fan socket and connector
here are a few more pics of the PEM CIC board.
it’s a pain in the ass to get too as you need to remove the battery side cables, then the main control board, the control board plate with crappy screws as two of mine were already stripped... then the CIC board itself. The two screws holding it to the bottom of the pem were a pain to put back in!
Some pics of the process.