2012 年奔驰 GLK 总线故障案例

admin 发表于 2025-12-14 21:33:33

<p style="box-sizing: border-box; margin-top: 3.9pt; margin-bottom: 0pt; margin-left: 1.3pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;">2012 年奔驰 GLK，搭载的是 3.0 升自然吸气 272 发动机。<p style="box-sizing: border-box; margin-top: 2.6pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 27.46; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" fetchpriority="high" decoding="async" width="553" height="366" class="wp-image-552 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231714144-20250305231714783-IM-2-553w366h.jpeg" 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: 4.95pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: right; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;">故障现象：司机反映，所有玻璃升降器、折叠后视镜、电动座椅等间歇性不工作。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.31; color: rgb(0, 0, 0); outline: 0px !important;"><p style="box-sizing: border-box; margin: 3.9pt 0.9pt 0pt 1.25pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.17; color: rgb(0, 0, 0); text-indent: 0.05pt; outline: 0px !important;">故障检修：接到该车后，从问诊中得知该车的故障现象在任何情况下都可能出现， 无论颠簸路段还是宽敞的水泥路段，有时候停车怠速也会出现。车辆过来维修时， 刚好有故障现象，使用诊断仪读取该车的故障码，故障码如下图所示:<p style="box-sizing: border-box; margin-top: 6.75pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 25.07; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="334" class="wp-image-553 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231715660-20250305231715647-IM-4-334h.jpeg" 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: 6.5pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 22.19; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="296" class="wp-image-554 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231716411-20250305231716322-IM-6-553w296h.jpeg" 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: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.22; color: rgb(0, 0, 0); outline: 0px !important;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 22.17; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="296" class="wp-image-555 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231717858-20250305231717806-IM-8-296h.jpeg" 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: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.2; color: rgb(0, 0, 0); outline: 0px !important;"><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 22.21; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="296" class="wp-image-556 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231719992-20250305231719149-IM-10-553w296h.jpeg" 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: 6.75pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 22.13; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="295" class="wp-image-557 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231719339-20250305231719238-IM-12-295h.jpeg" 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: 8.15pt; margin-bottom: 0pt; margin-left: 1.15pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.19; color: rgb(0, 0, 0); text-indent: 0.1pt; outline: 0px !important;">从故障码中可以看到，空调控制单元、右前门控制单元、右后门控制单元、左后 门控制单元、电动座椅控制单元、和后部采集促动控制模组等等，都报出与左前 门控制模块失去通讯，或者是与左前门控制模块的通讯存在故障、信息缺失。出 现此类故障的情况有：1.左前门控制模块电源故障；2.左前门控制模块接地有故 障；3.左前门控制模块的通讯线路有故障；4.左前门控制模块本身故障。使用专 检单独进入左前门控制模块却进入不了。由于该车的左前门控制模块比较方便拆 卸检查，把左前门的一块饰板扣下来便可以看到左前门控制模块。如下图所示：<p style="box-sizing: border-box; margin-top: 2.15pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 29.12; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="552" height="388" class="wp-image-558 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231722108-20250305231722977-IM-14-388h.png" 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: 4.45pt; margin-bottom: 0pt; margin-left: 1.2pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;">使用试灯，试灯夹子夹负极，对图中的插头测量（见上图）。<p style="box-sizing: border-box; margin: 1.3pt 1.95pt 0pt 1.1pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.15; color: rgb(0, 0, 0); text-indent: 0.95pt; outline: 0px !important;">因为没有电到电机控制模块所以试灯不点亮，然后使用专检查看该车左前门控制 模块的电路图，电路图如下：<p style="box-sizing: border-box; margin-top: 0.5pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 41.49; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="553" height="553" class="wp-image-559 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231724193-20250305231724342-IM-16-553w553h.png" srcset="https://wapq.cn/wp-content/uploads/2025/03/20250305231724193-20250305231724342-IM-16-553w553h.png 553w, https://wapq.cn/wp-content/uploads/2025/03/20250305231724193-20250305231724342-IM-16-553w553h-150x150.png 150w" sizes="(max-width: 553px) 100vw, 553px" 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: 8.1pt; margin-bottom: 0pt; margin-left: 1.2pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;">使用试灯对发动机室的 f2 保险丝进行了测量，测量结果如下图所示：<p style="box-sizing: border-box; margin-top: 5.45pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 25.33; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="248" height="337" class="wp-image-560 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231725520-20250305231725128-IM-18-248w337h.jpeg" 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;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="267" height="338" class="wp-image-561 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231726731-20250305231726357-IM-20-338h.jpeg" 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: 2.35pt 2.2pt 0pt 1.3pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.15; color: rgb(0, 0, 0); text-indent: -0.1pt; outline: 0px !important;">保险丝正常，于是便对保险丝盒的输出进行了测量，即是 f2 的输出，测量结果 如下图所示，没有输出，便可以判定为保险丝盒损坏。<p style="box-sizing: border-box; margin-top: 6.75pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 23.5; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><img alt="图片-2012 年奔驰 GLK 总线故障案例-蛙趣网" decoding="async" width="556" height="313" class="wp-image-562 size-full" src="https://wapq.cn/wp-content/uploads/2025/03/20250305231727711-20250305231727328-IM-22-313h.jpeg" 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: 9.15pt 1.6pt 0pt 1.3pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.17; color: rgb(0, 0, 0); outline: 0px !important;">为了百分百验证自己的判断，直接从电瓶正极接了一个 12V 过来，此时故障现象 不再出现，升降器可升降，电动座椅、折叠后视镜等都可正常正作，多次验证后 更换保险丝盒，故障解决。<p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.29; color: rgb(0, 0, 0); outline: 0px !important;"><p style="box-sizing: border-box; margin: 3.9pt 1.5pt 0pt 1.15pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.19; color: rgb(0, 0, 0); text-indent: 0.15pt; outline: 0px !important;">故障总结：该车是因为保险丝盒损坏后，电瓶的电压经过保险丝后，便无法再给 左前门控制单元供电，导致左前门控制单元不开机，无法正常工作。因此，处于 这一条总线上的模块都无法和左前门通讯，所以，处于这一条总线上的模块都报 出与左前门的控制单元失去通讯。以后检测像这种通讯故障时， 先检查故障模块 的供电、接地，如果电源正常，测量通讯线路是否正常，都正常则可以确定是模 块有问题。

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2012 年奔驰 GLK 总线故障案例