[Jobuha]

Sounds like the brake controller wire is hooked up to the lights vice the brake pedal. The controller should be hooked up to the non powered side of the brake pedal, so when you apply the brakes the controller applies the trailer brakes. If it is energizing everytime your turn signal operates you are in for rapid brake wear and possibly a wild ride..... just think everytime you change lanes at speed you are applying brakes. To me this does not sense..... time to have it checked out or rewire it yourself

Just my thoughts..............