Hello, i already talked about my non working locking pump in another thread but i think i should create a new thread for it.

When i bought my crossfire the locking pump was not working already. when i opened the trunk up i found out the cable was disconnected.
after connecting the pump cable and the battery cable the central locking works partially once. It opens the side door lock once and that's it until
removing and reconnecting battery again. so the pump is not really broken its somehow miss-configured/communication. I checked the yellow air tubes
and the one for the trunk was broken. it fixed that one. i bought a drb3 reader but i am not able to connect to the BCM or Central locking pump. I'm getting the errors
"NO Response from BCM pin 1" and "NO Response from CLP pin 1".

today i completely disconnected the pump and dismantled it. the inside looks brand new to me. the relays are clean and working. everything is soldered properly.

link to all images: https://imgur.com/a/xkSJyQX
i found 3 things that looked weird to me:
1) die metal-thing in the middle has no connection to the white spinning thingy. should i be all the way left or right? is the current position correct?
https://i.imgur.com/0FTrfPP.jpeg
https://i.imgur.com/r6ve8o4.jpeg
2) the 2 big solder points look weird.
https://i.imgur.com/J5Ooz7g.jpg
3) what is that white spot inside the tube?
https://i.imgur.com/2xONYVE.jpeg


should i just put it back together and search for the problem between pump and bcm and the bcm itself? i appreciate any type of help.