故障现象一辆2006年产捷豹XJ车,搭载3.0 L V6发动机,底盘号为SAJAA90D66VH0*****,行驶里程约为11万km,因发动机故障灯常亮而进厂检修。故障诊断接车后试车验证故障,接通点火开关,起动发动机,发动机顺利起动,仪表盘上发动机故障灯点亮,故障现象确实存在。连接故障检测仪(SDD),调取故障代码,读得的故障代码为 Fault phenomenon A 2006 Jaguar XJ car, equipped with 3.0 L V6 engine, chassis number SAJAA90D66VH0 *****, mileage of about 110,000 km, due to the engine fault light always bright and into the plant overhaul. Fault diagnosis After the test car to verify the fault, turn on the ignition switch, start the engine, the engine started smoothly, the dashboard engine fault lights lit, the fault does exist. Connect the fault detector (SDD), recall the fault code, the fault code read