故障现象一辆2011年产凯迪拉克SLS车(发动机型号为LNF),行驶过程中发动机会自动熄火。根据车主的描述,该故障之前频率不高,1个月才会出现1次,但现在故障频率越来越高,几天就会出现1次,但发动机每次熄火后过一会儿又能起动,该故障曾在其他维修站检查过,但未能解决故障。故障诊断接车后,对车辆进行检查,检查发现,ACC模式时仪表盘上的指示灯能够显示,但起 Symptom A 2011 Cadillac SLS car (engine model LNF), the engine will automatically turn off the flame during driving. According to the description of the owner, the frequency before the fault is not high, 1 month will occur 1 time, but now the fault frequency is higher and higher, a few days there will be 1, but the engine after each turn off and can start, This problem has been checked at other service stations, but failed to solve the problem. Troubleshooting After the car is parked, the vehicle is checked and the check shows that the indicator light on the dash board in ACC mode can be displayed,