2008年款别克君越通讯系统故障案例

admin 发表于 2025-12-14 21:37:24

<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;">故障现象：08年，2.4排量，行驶中，仪表、收音机、空调控制面板、室内灯突然熄灭后重新点亮。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img fetchpriority="high" decoding="async" width="554" height="297" class="wp-image-622 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232226133-20250305232226590-Picture-1-554w297h.jpeg" alt="C:\Users\sunxia\Desktop\1.jpg" imgbox-index="0" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;">故障检测：在初步问诊中得知，该车之前室内空调排水口曾经堵死，导致空调的冷凝水漏在室内，处理之后开了半年时间出现该故障，并且故障灯点亮。接上诊断仪，读取故障码，发动机故障码为：P0650功能失效指示灯(MIL)控制电路，P0730制动器开关电路2，U1064与车身控制模块(BCM)失去通讯，U1153与温度控制面板通讯中断，U1301第2数据连接高。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="366" class="wp-image-623 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232226311-20250305232226765-Picture-2-554w366h.jpeg" alt="C:\Users\sunxia\Desktop\2.jpg" imgbox-index="1" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;">读取BCM故障码为：U1305第二级数据连接低或高，U1000一般遗失对话，U1017遗失与发动机控制系统对话，U1096失去与仪表板组合仪表 (IPC)控制系统的通讯。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="402" class="wp-image-624 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232227682-20250305232227651-Picture-3-554w402h.jpeg" alt="C:\Users\sunxia\Desktop\3.jpg" imgbox-index="2" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">然后再读取ABS故障码：U1040遗失与电子制动控制模块(EBCM)的对话，U1000第2级数据连接，U1088遗失与传感器和诊断模块(SDM)的通讯。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="357" class="wp-image-625 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232228560-20250305232228389-Picture-4-554w357h.jpeg" alt="C:\Users\sunxia\Desktop\4.jpg" imgbox-index="3" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">读取组合仪表故障码：C0240动力系统控制模块牵引力控制不允许，U1000第2级数据连接功能失效。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="363" class="wp-image-626 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232229646-20250305232229772-Picture-5-554w363h.jpeg" alt="C:\Users\sunxia\Desktop\5.jpg" imgbox-index="4" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">最后再读取安全气囊故障码为：U1000第2数据控制连接攻能失数效。查找维修手册，得知该车只有两条总线。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="424" class="wp-image-627 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232230783-20250305232230575-Picture-6-554w424h.jpeg" alt="C:\Users\sunxia\Desktop\6.jpg" imgbox-index="5" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="381" class="wp-image-628 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232231342-20250305232231731-Picture-7-554w381h.jpeg" alt="C:\Users\sunxia\Desktop\7.jpg" imgbox-index="6" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">一个动力CAN总线，该总线只有发动机、变速箱传输，另一条总线为LIN总线，也正是这条总线和多个模块传输。怀疑这条上的某总线出现问题，测量该条传输总线，发现波形电压匀在正常范围内。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="375" class="wp-image-629 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232232981-20250305232232579-Picture-8-554w375h.jpeg" alt="C:\Users\sunxia\Desktop\8.jpg" imgbox-index="7" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">再次查阅该车电路图时，发现该车的ABS、室内照灯、仪表、导航收音机、空调控制面板等等，这些有故障的用电器都是由发动机舱内部的一个40安的保险丝所供电的。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="552" height="406" class="wp-image-630 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232233183-20250305232233867-Picture-9-552w406h.jpeg" alt="C:\Users\sunxia\Desktop\9.jpg" imgbox-index="8" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">拔掉该保险丝再插上，模拟故障现象，但是所模拟出的故障现象有区别，该车之前的故障现象类似关掉钥匙再开，仪表关了再自检所有灯点亮，导航收音机关了再开会继续收音，空调控制面板关了再开空调鼓风机会持续工作。但是拔了保险丝后再插上，空调就不工作了，导航收音机也不工作了。故判定该车的故障和该保险丝没有太大的关联。怀疑是点火开关或者是车身总搭铁接触不良所引起的故障，跨接点火开关，处理各个搭铁点后试车故障依旧，所以还是认为该车的故障和总线传输有关，为了验证我的想法，拔下ABS控制单元的插接件，故障依。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="316" class="wp-image-631 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232234942-20250305232234230-Picture-10-554w316h.jpeg" alt="C:\Users\sunxia\Desktop\11.jpg" imgbox-index="9" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;">依次拔下空调控制面板、导航收音机、组合仪表的插接件，故障依旧。只剩下BCM、发动机电脑、和气囊电脑，因为拆卸气囊电脑插接件工程量大，就找到气囊电脑的保险丝拔下，试车，故障不再出现，经过两天的持续试车，确定故障点在气囊电脑，更换气囊电脑故障解决。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; outline: 0px !important;"><img decoding="async" width="554" height="306" class="wp-image-632 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232235837-20250305232235891-Picture-11-554w306h.jpeg" alt="C:\Users\sunxia\Desktop\10.jpg" imgbox-index="10" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 10pt; color: rgb(78, 83, 88); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.1; text-indent: 22pt; outline: 0px !important;">故障总结：引起该车故障的可能原因有三点，1.电源故障或是是某个插接件接触不良所引起的，2.总搭铁接触不良所引起的，3.通讯故障所引起的。接车读取各个模块所报的故障都指向通讯故障，经过查看原厂维修手册上的拓扑图，测量总线电压和波形都没有异常，所以没有重点考虑，再排查完其他电源、搭铁等故障起因后匀没有解决故障，再次排查总线系统当拔下气囊电脑时，故障不再出现，所以说明气囊电脑损坏。在维修这个故障时，应看到它的一个共性，我们要依据该车的故障现象和共性来排查故障，这样的话就可以少走很多弯路。同时，我们一定要学会当出现间隙性故障时，一定要细心的观察故障所涉及的每一个点，然后通过各种方法模拟出故障，如果能模拟出同样的故障，那么我们就找到故障点了。

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2008年款别克君越通讯系统故障案例