Originally Posted by LaNcE10
oh ow? why am i screwed?? Talking about screwed, since ive done it now the rear parksense refuses to work? any ideas how to figure this one out? will try to see if all plugs are in properly tonight.
its the first suv i had, first with a towbar what the heck is a brake controller? i plan to just tow small box trailers and a car ramp / car trailer. will i need one?
The brake controller operates/controls the electronic braking system which is in the trailer itself.
All the controller does is vary the voltage output to the brakes on the trailer to suit the desired braking pressure / deceleration.
Towing up to 750kg its not needed, and most box trailers won't be fitted with electronic brakes.
A car trailer probably would be fitted with brakes since the gross weight would be quite high including a car of course.
If you are going to tow with a car loaded on it
then you'll need to use the trailer brakes and if they're electronic, you'll need to use a brake controller.
With an unladen car trailer you technically wouldn't need to use it as it's <750kg.
Now, if you did connect the electronic brake controls to an unladen car trailer you would want to dial down the braking force to suit the low weight because to don't want to lock the trailer brakes every time.
This also points to the reason why we have the brake controller mounted within reach in the drivers area. You are supposed to be able to adjust the brake force setting from the drivers seat.
If you have a Mini minor on the car trailer then would dial the brake force down and if you were towing a Bentley obviously dial it for extra braking force.
Ok there is one exception.
Some trailers might have a braking system fitted that is not electronic and does not require a controller.
My brother has a boat trailer with a "telescopic" mechanism on the tow coupling and when the momentum of the boat decelerating it compresses this telescopic coupling it applies the brakes on the trailer via hydraulics. The harder he decelerates the harder the brakes are applied. (Surge Braking system)