It’s imperative to have a trailer brake controller when towing a trailer that has electric or electric over hydraulic brakes. In most states, an adjustable trailer brake controller is required when ...
The X-Trail of that era has an unbraked towing limit of 750kg and a braked limit of 2000kg. On that basis, the short answer is yes, you need to have brakes on your caravan. But the detail is a little ...