The trailer socket wiring harness with trailer turn light bulb failure detection module BCM04 is a simple solution, dedicated for cars, where the trailer socket can be connected direct to the electrical installation in car. This kit includes 7-pin trailer socket.

This solution can be used for installation in older car models not equipped with drivers/cirquits for measure of load on each car lamp.

Kit is equipped with BCM04 module which detect malfunction of blinkers on trailer and signal it by sound.

In addition this module disconnects  FOG lamps on car when is detected the connection of trailer (this require to cut in wire in car).

NOTE: BCM05-G7-KIT don't separate power consumption by some lamps on trailer  from car ! This can be reason of signalling warning or even failure of car when this car have implemented self-diagnose  functions ! 

Product requires to be installed by specialized workshop - read here.