If the etc card shows that you have not signed a contract, it should indicate that you have not successfully run ETC. If successful, vehicle information needs to be written to activate the obo device.

ETC Chinese translation is electronic toll collection, which is an automatic toll collection for highways or bridges. Through the special short-distance communication between the vehicle-mounted electronic tag installed on the windshield of the vehicle and the microwave antenna on the ETC lane of the toll station.