Automatic A/C: Ambient sensor airflow?

[dj92]

Now I have got the parts and successfully soldered white LEDs into the control assembly, but I'm already running into problems.

Following the wiring diagram, I thought the servos to have included some LIN electronics or the like, so it could be on a 3 wire bus.

Instead, each one has 5 pins, 3 of them lead to some kind of rotary encoder and the other ones lead directly to the motor.

Before I start analyzing the PCB:
Do you have any hints to which pins these servos connect to?
Sadly, I was not able to get the connectors or even a wiring harness.