Tech Help re brakes/ATC

AnDon
AnDon Forum Participant Posts: 30
edited February 2014 in Caravans #1

Went to pick up our 10 month old unicorn to find brakes seized even though it had been moved 5 days before. Only variable was a new tow car.

we plugged the electrics in and the ATC light flashed and brakes locked. GF tried to release them but whilst one side was ok other wasn't. 

Dealer adjusted and whilst on ramp fine but when on road locked again. Diagnosed as ATC failure 

my question is has anyone else had this? Or is it an issue with tow car wiring?