ERICH JAEGER is a specialist for retrofitting wire harnesses for trailer operation. The company offers quick installation solutions and assistance with the activation.
After installation with all electrical connections to the vehicle electrical system and the trailer control unit, ERICH JAEGER recommends a final function check. After all, an error in the end consumers' vehicle display or the reclamation of a flashing brake light has to be prevented - because this is when the nerve-racking troubleshooting begins.
With the ERICH JAEGER trailer testing units, specialist workshops can check the correct installation of a wire harness before handing over the vehicle to the customer. In this way, there are no bad surprises when the towing vehicle ist connected to the trailer - and depending on the type of testing unit, users also have the possibility to check the ligting system of a trailer, for example when converting to LED lights, repairing the wiring or replacing the plug.
Prerequisite for different systems
In practice, a 13-pin trailer socket according to ISO 11446 is usually retrofitted - this corresponds to the current state of the art and enables the connection of modern trailers. However, older 7-pin systems according to ISO 1724 are also used when it comes to the operation of simple load trailers.
The systems place different demands on a trailer tester: While only 6 different lighting functions are tested with a 7-pin electrical installation kit, the 13-pin system adds the function of the reversing light and two separate power supply circuits.
Both configurations can be tested quickly and easily with the compact ERICH JAEGER automotive testing unit.