Quote Originally Posted by pwdrskr View Post
Well done! Particularly in sorting out the coding. I did the B9 U.S. to B9 Euro tail light switch (black line w/fog lights) last Spring and had a devil of a time coding the lights to work properly. In fact, I needed for Alex @ Europrice to help since the issue turned out to be with the supplier’s servers and nothing I was doing/not doing. It would seem that B9 to B9.5 coding would be even more complex. Any idea if this is true? Considering the investment I’ve already made in the lighting on my car and that there isn’t a black line version apparently, I don’t see doing this myself.

None the less, Bravo!
Actually parametrization and coding was simple.
The wiring was a bit harder, especially because B9 US has 4 wires on the exterior tail lights and B9.5 EURO (same as B9 EURO) has 5 wires on the exterior tail lights + the plugs are a different (nothing a sharp cutter can't fix).

For a conversion from A5 / S5 / RS5 B9 US taillights to B9.5 with animation you need to exchange / add some wires as below (click the photos for better resolution)
Please note that since I used the B9 connectors, in my diagram below I kept the B9 wire colors.
So here's a small tutorial (this is not a step by step guide - when I will have some free time I will make one):

Step 1 - Wiring
- Operation 1 - things you need to do at the connectors to the tail lights after you unplug them
- Operation 2 - things you need to do at the BCM unit on the 3 marked connectors




Step 2 - parametrization with VCP
- From VCP activator - File management download file a5_8w1907064bd.zdc - the one marked below

- In VCP system go to Guided Functions > Apps > Upload Parameter data > Open ZDC file > a5_8w1907064bd.zdc
Select the following data to upload for ECU 46 - Central module comfort system
REARLAMPS_PART1_LED_EU_MIDHIGH
REARLAMPS_PART2_LED_EU_MIDHIGH
REARLAMPS_PART3_LED_EU_MIDHIGH
REARLAMPS_PART4_LED_EU_MIDHIGH
REARLAMPS_PART5_LED_EU_MIDHIGH
REARLAMPS_PART6_LED_EU_MIDHIGH
REARLAMPS_PART7_LED_EU_HIGH



Step 3 - Activating the animation - can be done with VCP / VCSD or OBDeleven only after the parametrization.
This was based on the coding I found on OBDeleven forum for A6/A7 and since I don't have a lot of experience with VCP I used OBDeleven to change the coding for the fields marked below as shown:
Go to Control Units > Comfort System 46 > Long Coding and set exactly as below: