A vehicle cleaner system comprising: a plurality of cleaner units that discharge cleaning liquid toward objects to be cleaned mounted on a vehicle; a motor pump that supplies the cleaning liquid to the cleaner units; normally closed electromagnetic valves that are each provided between a respective one of the cleaner units and the motor pump, the electromagnetic valves being configured to switch between permission and non-permission of movement of the cleaning liquid from the motor pump to the cleaner units; a cleaner control unit that controls energization from a power source to the normally closed electromagnetic valves to control opening and closing of the normally closed electromagnetic valves, characterized in that the cleaner control unit performs PWM control after the normally closed electromagnetic valves are opened, wherein the vehicle can travel in an automatic driving mode, wherein the vehicle cleaner system further comprises: a control module that controls the electromagnetic valves and the motor pump; and a plurality of protection diagnosis units that are each provided in an electrical connection of a respective one of the electromagnetic valves and the control module, the plurality of protection diagnosis units being configured to protect an overcurrent from flowing through the electromagnetic valves when the electromagnetic valves are short-circuited or open-circuited and transmit the short circuit and the open circuit of the electromagnetic valves to the control module, and wherein the control module outputs information on an unavailable electromagnetic valve to a vehicle control unit that controls the vehicle based on a signal indicating the short circuit and the open circuit of the electromagnetic valves acquired from the protection diagnosis units. a plurality of cleaner units that discharge cleaning liquid toward objects to be cleaned mounted on a vehicle; a motor pump that supplies the cleaning liquid to the cleaner units; normally closed electromagnetic valves that are each provided between a respective one of the cleaner units and the motor pump, the electromagnetic valves being configured to switch between permission and non-permission of movement of the cleaning liquid from the motor pump to the cleaner units; a cleaner control unit that controls energization from a power source to the normally closed electromagnetic valves to control opening and closing of the normally closed electromagnetic valves, characterized in that the cleaner control unit performs PWM control after the normally closed electromagnetic valves are opened, wherein the vehicle can travel in an automatic driving mode, wherein the vehicle cleaner system further comprises: a control module that controls the electromagnetic valves and the motor pump; and a plurality of protection diagnosis units that are each provided in an electrical connection of a respective one of the electromagnetic valves and the control module, the plurality of protection diagnosis units being configured to protect an overcurrent from flowing through the electromagnetic valves when the electromagnetic valves are short-circuited or open-circuited and transmit the short circuit and the open circuit of the electromagnetic valves to the control module, and a control module that controls the electromagnetic valves and the motor pump; and a plurality of protection diagnosis units that are each provided in an electrical connection of a respective one of the electromagnetic valves and the control module, the plurality of protection diagnosis units being configured to protect an overcurrent from flowing through the electromagnetic valves when the electromagnetic valves are short-circuited or open-circuited and transmit the short circuit and the open circuit of the electromagnetic valves to the control module, and wherein the control module outputs information on an unavailable electromagnetic valve to a vehicle control unit that controls the vehicle based on a signal indicating the short circuit and the open circuit of the electromagnetic valves acquired from the protection diagnosis units.