Automobile lighting line detection plug-in connector

The utility model relates to an automobile light line detection plug-in connector, which comprises a fault setting device, a light line harness connecting plug, a light line connecting plug and a fault detection seat, and is characterized in that the light line harness connecting plug and the light line connecting plug are both in wired connection with the fault setting device; the fault setting device comprises a protective shell and a plurality of signal lines, the protective shell comprises an upper shell and a lower shell, a connecting assembly is arranged on the upper shell, the upper shell is connected with the lower shell through the connecting assembly, the signal lines are located in the protective shell, resistors and switches are arranged on the signal lines, and the resistors and the switches are connected with the upper shell through the connecting assembly. The resistor and the switch are connected in parallel, and the fault detection seat is connected with the signal line. The method has the ef