GRILLE SHUTTER CONTROL DEVICE

A grille shutter control device includes a control section and a diagnostic section. The control section is connected to a communication line in a vehicle and controls opening and closing of a grilleshutter that introduces air to a cooling target of the vehicle. In a case in which a communications fault is detected, the control section controls to open the grille shutter. The diagnostic section is connected to the communication line and detects a degree of opening of the grille shutter by communicating with the control section. A temperature detection section detects a temperature of the cooling target. In a case in which the communications fault is detected, the diagnostic section diagnoses a malfunction of the grille shutter if a temperature detected by the temperature detection sectionis higher than a pre-specified threshold. 本发明涉及种格栅百叶窗控制装置，具备：控制部，其与车辆内的通信线连接，并且对向车辆的冷却对象导入空气的格栅百叶窗的开闭进行控制，且在检测出通信的异常的情况下，对格栅百叶窗进行控制以使格栅百叶窗开放；判断部，其与通信线连接，并且被设为能够通过与控制部的通信而进行格栅百叶窗的开度的检测，当检测出通信的异常时，在由对冷却对象的温度进行检测的温度检测部所检测出的温度变得高