4-31Caravan Equipment 44.12 AL-KO ATC TRAILER CONTROL SYSTEMAL-KO ATC is an electronic, emergency braking system for caravans and trailers. It automaticallyrecognises critical swinging motions and applies the caravan brakes accordingly to regain control ofthe car and caravan.▲ AL-KO ATC is a passive safety product and activates the braking system on the caravanin unsafe driving conditions. The driver has a responsibility under law to ensure that theelements of towing safety are met, including driving within the legal speed limit,consideration of road, weather and other traffic conditions, correct loading and couplingof the caravan.ATC is designed to fit only on AL-KO Chassis and is not suitable for non AL-KO Chassis.ATC only functions for caravans with a rigid towbar.The electrical connection between the towing vehicle and caravan must be in good working order.4.12.1 System requirementsATC draws power from the towing vehicle towbar and requires connection to either:Twin 7-pin connection - ATC can be connected via the auxiliary 12S (white/grey) plug and requirespower on pins 3 (earth) and 4 (permanent supply). Please ensure that your vehicle towbar is correctlyconnected to ensure correct ATC operation. This can be checked with the use of a multimeter.13 pin connection - ATC can be connected via the 13-pin plug and requires power on pins 9 (permanentsupply) and 13 (earth). Please ensure that your vehicle towbar is correctly connected to ensure correctATC operation. This can be checked with the use of a multimeter.4.13.2 Operating instructionsAfter coupling the caravan correctly to the towing vehicle, connect the 12N and 12S plugs or the 13 pinplug to the towbar.Upon connection, ATC will carry out an initial self test and the LED light on the front fairing will light upRED. During the self test, the sound of the push rod moving inside ATC can be heard. When the selftest is complete, the LED will turn GREEN or flashing GREEN to signal that ATC is active.If the LED does not change to green, then ATC is not functioning correctly.▲ Prior to commencing any journey, ensure that the caravan lighting is fully operational andcheck the vehicle is loaded appropriately, the nose weight and tyre pressures are correctand confirm that the caravan is coupled to the car correctly.