Quote: |
| Can anyone of you tell me how the central locking system is wired in a Passat? |
From the respective door control units. This information is transmitted via CAN bus from the comfort control unit.
Quote: |
| Is it mass-controlled or plus-controlled? |
The motors are controlled alternately by the door control unit.
Quote: |
| Perhaps someone has a wiring diagram for the central locking system and the lighting? |
Reliable wiring diagrams can be found here:
edit:

Maybe you can ask someone
https://Erwin (siehe Fehlerdatenbank).volkswagen.de/Erwin (siehe
Fehlerdatenbank)/showHome.do;jsessionid=7A32C714106307F42597666BBB4E84B1.ASTPVWE1 you trust if they can print something out for you.