Diagnostic apparatus, non-transitory computer-readable storage medium storing program, and connection setup method

A non-transitory computer-readable storage medium storing a program, wherein:

• the program is installed in a diagnostic apparatus configured to relay diagnostic communication between a maintenance terminal and a vehicle, the maintenance terminal being used to perform maintenance-management of the vehicle;
• and
• the program enables the diagnostic apparatus to execute steps i) and ii)
• i) reading out, from the vehicle, identification information unique to the vehicle connected to the diagnostic apparatus, before wireless connection between the maintenance terminal and the diagnostic apparatus is set up, and
• ii) transmitting the identification information unique to the vehicle to the maintenance terminal, the identification information serving as information for identifying the diagnostic apparatus to which the maintenance terminal is wirelessly connected when the wireless connection between the maintenance terminal and the diagnostic apparatus is set up.