Abstract: An inspection apparatus, which inspects a CAN communication function of an ECU to be inspected, comprises: a connection unit configured to connect a communication circuit of the ECU and the inspection apparatus on a one-to-one basis; an inspection message creation unit configured to create an inspection message in which a predetermined signal level indicating a higher priority of communication arbitration than the message received from the ECU to be inspected is set in an identifier field of a data format corresponding to the message; a transmission unit configured to transmit the inspection message to the ECU; a reception unit configured to receive a message transmitted from the ECU; and a reception function determination unit configured to determine whether a reception function of the ECU is normal based on whether the reception unit has received the message from the ECU after transmission of the inspection message.

Abstract: An inspection apparatus, which inspects a CAN communication function of an ECU, comprises: a connection unit which connects a communication circuit of the ECU and the inspection apparatus on a one-to-one basis; a creation unit which creates an inspection message in which a predetermined signal level is set in a confirmation field of a data format corresponding to a message received from the ECU; a transmission unit which transmits the inspection message to the ECU; a reception unit which receives a response message to the inspection message from the ECU; a confirmation unit which confirms whether a signal level of the confirmation field in the response message is changed with respect to setting of the inspection message; and a determination unit which determines whether a reception function of the ECU is normal based on the confirmation.

Abstract: An inspection apparatus, which inspects a CAN communication function of an ECU to be inspected, comprises: a connection unit configured to connect a communication circuit of the ECU and the inspection apparatus on a one-to-one basis; an inspection message creation unit configured to create an inspection message in which a predetermined signal level indicating a higher priority of communication arbitration than the message received from the ECU to be inspected is set in an identifier field of a data format corresponding to the message; a transmission unit configured to transmit the inspection message to the ECU; a reception unit configured to receive a message transmitted from the ECU; and a reception function determination unit configured to determine whether a reception function of the ECU is normal based on whether the reception unit has received the message from the ECU after transmission of the inspection message.

Abstract: An inspection apparatus, which inspects a CAN communication function of an ECU, comprises: a connection unit which connects a communication circuit of the ECU and the inspection apparatus on a one-to-one basis; a creation unit which creates an inspection message in which a predetermined signal level is set in a confirmation field of a data format corresponding to a message received from the ECU; a transmission unit which transmits the inspection message to the ECU; a reception unit which receives a response message to the inspection message from the ECU; a confirmation unit which confirms whether a signal level of the confirmation field in the response message is changed with respect to setting of the inspection message; and a determination unit which determines whether a reception function of the ECU is normal based on the confirmation.