故障现象一辆长安福特蒙迪欧致胜轿车(配备无钥匙起动系统),累计行程8万km,发动机无法起动。具体故障症状为:点火开关可正常接通,但踩下制动踏板后再按起动按钮“POWER”(图1),起动机没有反应。经询问车主得知,该车曾因事故在外地维修过,事故碰撞位置为轿车左前侧。 Symptom A Changan Ford Mondeo winning car (equipped with a keyless start system), the cumulative trip 80,000 km, the engine can not start. Specific fault symptoms: ignition switch can be properly connected, but after depressing the brake pedal and then press the start button “POWER ” (Figure 1), the starter did not respond. Upon inquiry, the owner knew that the car had been repaired in the field due to an accident and the accident collision location was left front of the car.