A C1 switching valve (80): forms a first supply state that enables a C1 solenoid pressure (Pslc1) to be supplied to a clutch (C1) when a line pressure (PL) is supplied as a holding pressure, or when a modulator pressure (Pmod) is supplied and a B1 solenoid pressure (Pslb1) is not supplied as a holding pressure; and forms a second supply state that enables the line pressure (PL) to be supplied to the clutch (C1) when the modulator pressure (Pmod) is supplied and the B1 solenoid pressure (Pslb1) is supplied as holding pressures. Furthermore, the modulator pressure (Pmod) is supplied to the C1 switching valve (80) as a holding pressure when there is a supply abnormality in the C1 solenoid pressure (Pslc1).