1.CAN Tester Box is a CAN Bus circuit tester compatible with 12 and 24 volt systems;
2.Testing DLC (OBD port) if any error before connecting connecting other diagnostic equipment to DLC, such as pin short circuit and polarity reverse connection ;
3.Real-time display of communication signals ( such as communication protocol signals ) on the allocated pins which can quickly locate faults and replace the voltage measurement function of digital multi-meter ;
4.Fastly connect 16 pins during vehicle maintenance diagnosis; 
5.Monitoring input voltage of OBD when burning module, high and low voltage alarm;