故障现象一辆吉利熊猫车,累计行驶了约1930 km,出现接通点火开关后,安全气囊指示灯常亮不熄的现象(图1)。故障诊断首先连接故障检测仪读取故障代码,调得的故障代码为B0026—驾驶人侧安全气囊开路(图2),而且故障代码无法清除。分析故障产生的原因有以下几点:安全气囊故障;安全气囊至安全气囊控制单元间线路故障;安全 Symptom A Geely Panda car, accumulated a total of about 1930 km, appeared after the ignition switch, the airbag indicator light is not extinguished (Figure 1). Fault diagnosis First connect the fault detector to read the fault code, tune the fault code B0026 - driver side airbag open (Figure 2), and the fault code can not be cleared. Analysis of the reasons for the failure of the following points: airbag failure; airbag to airbag control unit between the line failure; safety