Audi Q5 2010 - All my Trailer Warning messages are coming on????
 

Hi All
Could anyone possibly assist me with this problem.
I have a bike rack for my Q5.
A few days ago while driving all my warnings from the bike rack came through on the dashboard, one after the other.
'Trailer right rear light' ,'Trailer left rear light', 'Trailer right turn signal', 'Trailer left turn signal' and 'Trailer brake lights', one after the other.
After disconnecting the bike rack, I still get these warning messages.
The Audi service centre has looked at this but cannot help.
Has anyone seen this before?
I am thinking the reference/neutral must be lost.
Is this maybe just a common fuse?
Any ideas?
Regards
Philip