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2009 kuan bao ma 740li yao kong shi xiao
Author(s): 
Pages: 77
Year: Issue:  9
Journal: Auto Maintenance

Keyword:  遥控器中控锁故障诊断发动机启动系统电子装置故障现象信号传输接线盒传输路径;
Abstract: <正>车型:F02,配置N52发动机。故障现象:遥控器无法打开和关闭中控锁。故障诊断:使用两把遥控器均无法控制中控锁,将机械钥匙从遥控器上取下,用机械钥匙可以控制四门的开启与闭锁。遥控器开闭锁的信号传输路径如图1所示,按压遥控器,遥控器发出一个加密遥控解锁信号,后窗玻璃内的FBD天线将该遥控信号传输至DIV多相择优模块,在DIV内对信号进行解调和处理,并通过LIN总线发送至CAS便捷登车及启动系统。CAS通过K-CAN2将开锁指令传输给JBE接线盒电子装置,由JBE打开车门锁。
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