The electrical “JaegerCANtrol“ module is based on the CAN (Controller Area Network) technology. The device communicates with the other vehicle systems via a particular interface enabling the digital signals, for example “back light on”, to be transferred to the trailer as analogue signals.

In doing so, almost all signals can be read in via the two-core CAN wire thus simplifying the construction and installation of the wiring harness kit.

After the installation of the wiring harness kit, most vehicles have to be activated according to the instructions of the vehicle manufacturer as the control device is integrated into the vehicle bus. Normally, such an activation is carried out by an authorized repair shop. Therefore, additional costs may arise


The trailer control device “Jaegertronic” implements a technical functionality of the trailer’s flasher failure indicator which redundantizes an additional C2 indicator lamp in the combination instrument.

When using this control device, the flashing frequency of the flasher indicator lamp already existent in the vehicle is doubled to indicate the failure of the flasher. This failure indication corresponds to the current requirements of the KBA (the Federal Bureau of Motor Vehicles and Drivers) and is familiar to the driver as a failure of the vehicle’s flasher is indicated in the same way.

The “Jaegertronic” control device is countersunk into the flasher circuits of the towing vehicle and requires a steady plus connection (clamp 30) with a diameter of at least 1 mm².

Advantages of the “Jaegertronic” operating mode are:

  • No interference with the combination instrument as no C2 indicator lamp is necessary.
  • If a steady plus line is existent in the rear end of the vehicle, merely rear end wiring is required. The installation time is significantly reduced.
  •  An exchange of the vehicle flasher unit is not necessary.
  • The rear fog light changeover is integrated.