Trailer tracking battery supply
It isn’t well known at the moment, but is happening more and more: supplying the trailer tracking system battery through the AUX connection in EB+ Gen3.
The battery is usually powered via the lighting system, but especially during the summer when a truck may be driven for a long time without its lights on, this power supply can be insufficient. Thus, tracking systems can fail due to inadequate power. But if the battery is connected to the EB+ ECU, it receives a constant supply of power as long as the trailer and tractor are coupled.