Activation of BOTH Rear Fog light DIY by kdagher

2 minute read

Activation of BOTH Rear Fog light DIY

Compliments of kdagher @ www.vwvortex.com

Hi,

I was able to activate both rear fog lights for the CC .

It works, everything is already pre wired.

All you have to do is run a trigger wire (000 979 009)from the Euro light switch Pin 7 to the E connector of the J519 module PIN 13

J519 (Central Electronics Module) is located where the OBD port is. Underneath the drivers side.

Then a minor Vag coding:

In the Central Electronics Module [09]

Uncheck Bit 1 Byte 3 (to enable both rear fog lights)

Check Bit 4 Byte 4 (To activate both rear fog lights)

Uncheck Bit 6 Byte 4 (To activate rear fog lights)

EDIT :

To enable only the left rear fog light :

use the following coding

Check Bit 1 Byte 3

Uncheck Bit 4 Byte 4 

Uncheck Bit 6 Byte 4

Thank you crazywayne311 for the idea

Lights switch ON

Dash Board Rear fog light on

Rear Fog lights OFF

Rear Fog Lights ON