astrofil

I`m looking for wire diagram how to wire red electric plug going to the Trailer Recognition Module.
I have already made connection for:
- all power supply 4 cables total
- ground connection
- Comfort Can Bus HI
- Comfort Can Bus LO

I did all necessary Vag Coding and I`m able to connect to the Trailer Module but getting few codes and lights in the trailer wont work.

Code 00457 - Control Module for Network (J519)
004-No signal/ Communication

Code 01299- Diagnostic Interface for Data Bus (J533)
004- No signal/ Communication

Looks like I need another Can Bus Connection at the module ???
Did I miss anything ?

astrofil

http://i148.photobucket.com/albums/s...z/P1030280.jpg

Looking at this plug I have wired power supply to all 3 cables at top row.

Middle row 2 pins are the CAN BUS wires.

Bottom row first from the right ignition switchable power supply, second from left is a ground cable and I`m missing 3 cable in this row
anybody knows what for is this third from the right cable at bottom row?