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故障现象一辆年产丰田皇冠车,搭载5GR-FE发动机,累计行驶里程约为16万km。车主反映,该车定速巡行无法设置。故障诊断接车后试车,接通点火开关,按下定速巡行控制开关(图1)侧面的按钮,组合仪表上的定速巡行(CRUISE)指示灯不点亮,异常(正常情况下,按下定速巡行控制开关侧面的按钮时,定速巡行系统进入待命状态,定速巡行指示灯点亮,且在定速巡行工作中,定速巡行指示灯一直点亮),同时发现安全气囊指
Trouble A Toyota Crown car with an annual output of 5GR-FE engine, the cumulative mileage of about 160,000 km. Owners reflect, the car speed cruising can not be set. Troubleshooting After the car is connected to the vehicle, turn on the ignition and press the button on the side of the cruise control switch (Fig. 1). The CRUISE indicator on the combination meter does not light up and it is abnormal (normally, press Speed cruise control switch on the side of the button, the cruise control system into standby state, constant speed cruise indicator light, and speed cruising work, constant speed cruise indicator light has been lit), while the airbag finger