Q7 westfalia towbar acc and brake assist problem

[Waverunner52]

Hi, I have just fitted a westfallia towbar and dedicated electrics to my 2008 Q7. Plugged in light board and all working fine.. as I was driving the car to local towbar specialist to get it programmed I noticed the brake guard and acc not available!! Notices. Got the car programmed using westfallia hand held computer all ok but still brake guard and acc problem on car ..
is this common or have I done something wrong or disturbed something when fitting?
Any help would be appreciated, thanks.

[Gavin0478]

Sounds like it has not been coded correctly.

[Waverunner52]

Ok, job done.. checked all connections, fault codes deleted and code number had to be changed on ACC I think.