A vehicle having an electricity accumulator for driving a vehicle, a charging inlet for receiving power supplied from a power supply provided on the outside of the vehicle, a circuit for charging the electricity accumulator with power from the power supply, and power lines for connecting the charging inlet and the charging circuit. An abnormality detector of vehicle having a circuit for applying a test voltage to the power lines, and an ECU as a short circuit detecting section. When the voltage value of the power line deviates from a predetermined normal range including the test voltage value although the test voltage is applied to the power line from the voltage application circuit, the ECU detects short circuit of the power line. The ECU specifies a short circuit mode corresponding to the detected short circuit among a plurality of short circuit modes based on the voltage value of the power line.