Just got back from the prelim check to have ESC installed. Brakes on the van were tested to make sure they are operating correctly. If ESC is intalled on van with brakes that are not operating correctly it has caused problems.
Rim sizes, tyre sizes, suspension was checked
Distance from van hitch to centre of wheel was checked
All this information is used to ensure they get the correct ESC unit for the van
The $200 for the car allows for additional wiring direct from the battery to an anderson plug for the power for the ESC. The power could be taken from the 12 pin plug but what happens if there is faulty appliance in van & trips out fuse, no ESC. The anderson also allows for more power draw than the 12 pin plug
It was explained to me that ESC works independently of the brake contoller in the car. ESC only comes into play if the sensor picks up movement in the van, ESC the applies the brakes to stabilise van, not when you put your foot on the brake
Matty4 - from the alko website,
"The AL-KO ESC operates independently of the tow vehicle's stability control system.
AL-KO ESC will not have any detrimental effect on the operation of these systems."