故障现象一辆2004款上海通用别克君威2.5 L自动挡轿车,累计行驶里程约为18万km,因出现发动机无法起动的故障而请求维修人员前去救援。故障诊断救援人员到达现场后,检查蓄电池电量正常,熔丝盒内各熔丝也均未熔断。尝试起动发动机,起动机却没有任何反应。由于受现场条件所限,无法当场排除故障,于是将车辆拖回维修站做进一步检修。由于起动发动机时起动机不工作,维修人员怀疑起动机及其线路有故障。检查线路没有异常,又尝试跨接发动机室内熔丝/继电器盒内的11号继电器座的端子30、87后对起动机 Fault phenomenon A 2004 Shanghai GM Buick Regal 2.5 L automatic sedan, the cumulative mileage of about 180,000 km, due to the emergence of the engine can not start the fault and request maintenance personnel to rescue. Troubleshooting Rescue workers arrived at the scene, check the battery power is normal, the fuse box fuse are not blown. Trying to start the engine, the starter did not respond. Due to the limited site conditions, can not be ruled out on the spot, so drag the vehicle back to the repair station for further maintenance. Since the starter does not work when starting the engine, maintenance personnel suspect that the starter and its line are defective. Check the line is not abnormal, but also try to jumper engine fuses / relay box No. 11 Relay Block terminal 30,87 after the starter