故障现象一辆2016年产奥迪Q3车(搭载1.4T发动机),组合仪表提示“驻车制动:有系统故障!”(图1)。故障诊断用故障检测仪(VAS6150)检测,ABS控制单元中无故障代码存储。举升起车辆,检查电控机械式驻车制动器的驻车和释放状态,均正常。既然组合仪表提示驻车制动系统存在故障,为什么ABS控制单元中无故障代码存储呢?检查车辆配置,进行在线对比,系统提示无需 Symptoms A 2016 Audi Q3 (equipped with a 1.4T engine) indicates that the combination indicator “Parking brake: a system fault!” (Figure 1). Fault detection is detected by the fault detector (VAS6150) and no fault code is stored in the ABS control unit. Raise the vehicle, check the parked and released state of the electronically controlled parking brake, are normal. Since the instrument cluster suggests that there is a problem with the parking brake system, why is there no trouble code stored in the ABS control unit? Check the vehicle configuration, compare online,