MOBILE OBJECT CONTROLLER, MOBILE OBJECT CONTROL METHOD, AND RECORDING MEDIUM

A mobile object controller includes a first ECU and a second ECU, when a mobile object is in a power-off state, the first ECU starts timekeeping for a first predetermined time period by a timekeeping section if the first ECU recognizes a predetermined operation on a power switch while identification information is not stored in a storage section, and starts communication establishment processing between the first ECU and the second ECU to establish communication between the first ECU and the second ECU so as to allow the first ECU to be operated via the second ECU by a terminal device connected to the second ECU.