A vehicle-mounted program writing device includes a plurality of vehicle-mounted control devices and a relay device. If a write start command button is turned on when a memory storage completion indicator is in an on state, the relay device starts the writing of the updated programs and the updated data to the vehicle-mounted control devices. If the memory storage completion indicator is in off state, the relay device does not execute the writing of the updated programs and the updated data even when the write start command button is turned on.
Vehicle-mounted program writing device
2018-08-28
Patent
Electronic Resource
English