[Ciscocat]

Yes, that is this issue I had to, made the changes to the Fog Light indicator came on but would not turn on the rear fog lights, no wiring to the light assembly. So I used the drivers' side back brake light instead, I coded in BL_L = Left brake light in place of nsl_l , it worked. Now it lights the driver's side rear brake light when the rear Fog Light button is on, and past inspection!
3064 --> Mapping_Nebelschlussl_L_Output --> BL_L (hex 18) is the code, and you may need to add this as a Custom Code.