In a hybrid vehicle, an ECU executes drive control of an EHC. For the control, the ECU first executes low-voltage drive in which a drive voltage is reduced to 50 V when an energization request of the EHC is made. Then, based on a resistance value of the EHC, the ECU detects whether or not electric leakage is caused by dew formation of condensed water in the EHC. Consequently, if the electric leakage is detected, the energization of the EHC is inhibited. If electric leakage is not detected, the drive voltage Vd is increased to 200 V for normal drive to heat a catalyst by the EHC.