故障 排除 经验 点滴
Auto Maintenance & Repair(2016)
Abstract
车型 江淮瑞风S2车(车型为HFC7151EAV)
故障现象 车辆行驶中,发动机突然熄火,且无法重新起动着机.此前,该车曾多次出现发动机自动熄火的故障,特别是在换挡时容易出现,但每次熄火后可重新起动着机.
故障诊断 用故障检测仪检测,发动机控制单元中无故障代码存储.进一步检查发现,点火线圈无供电.查看电路图得知,点火线圈由熔丝EF03(15 A)供电,且该熔丝也为风扇继电器线圈供电.检查发动机室熔丝盒中的熔丝EF03,已熔断.
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