故障现象一辆2004年生产的上海通用别克君威轿车(采用LB8发动机),累计行驶了8.5万km,前几天由于蓄电池亏电,就更换了蓄电池,而后该车每天行驶一直正常,但将该车停放2天后再起动发动机,依旧出现蓄电池亏电的现象。故障诊断接到救援电话后,笔者立即带着工具赶赴现场。到达现场后,发现该车全车无电,仪表盘上没有任 Fault phenomenon Shanghai GM Buick Regal sedan produced in 2004 (using LB8 engine), a total of 85,000 km traveling a few days ago due to battery power loss, the replacement of the battery, and then the car has been normal daily operation, but the The car parked two days before starting the engine, there is still the phenomenon of battery power loss. Troubleshooting After receiving the rescue call, I immediately rushed to the scene with a tool. Arrived at the scene and found that the car without electricity, no dashboard