故障描述
车辆行驶过程中及长下坡时，打开排气制动开关，排气制动阀不工作，不起制动作用。
故障分析
分析可能存在故障的部位有：
1、 排气制动开关损坏；
2、 排气制动电磁阀短路、短路；
3、 排气制动蝶阀卡死；
4、 排气制动管路损坏，漏气；
5、 下车排气制动相关线束；
6、 发动机ECU模块故障。
故障处理1.检查
检查时发现打开排气制动开关，排气制动指示灯亮，说明排气制动控制开关信号进入发动机ECU，开关正常。
2.检查排气制动电磁阀
检查排气制动电磁阀，测量电磁线圈阻值约为24欧姆，电磁阀正常。
3.测电压
测量排气制动电磁阀线束插头内电压，304#对327#无电压，304号线对地为24V，此为正常，排气制动电磁阀由发动机ECU直接提供24V电源，由ECU控制负极通断来实现电磁阀的开启和关闭。
4.判断
测量发动机ECU控制负极的端口K47与排气制动电磁阀插头处327号线不通，判断线路有断路现象（见上图），导致排气制动电磁阀无法吸合、蝶阀不工作。
5.查找
通过查找与车架对接的插件，发现有松动情况，维修该处连接线路后，故障解决。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/42935.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
对手变战友，奥迪加入奔驰宝马联盟_奥迪,奔驰,BMW,戴姆勒公司,豪华车,无人驾驶,福特汽车,Smart汽车,移动支付,法兰克福车展,迈巴赫,大众集团,原汁原味的德系SUV,诺基亚,人生第一份工作
“ 作者 | 咸运祯 编辑 | 张嫣 8月22日，据德国《商业周刊》（Wirtschaftswoche）报道，奥迪已加入戴姆勒和宝马的联盟，三方将共同开发驾驶辅助系统。…
-
春节出行七大忌，平安过新年
春节即将来临，在这个时间节点上”出行注意事项”是亘古不变的话题。出行大军一票难求是常见现象，对于有车族来说，自驾似乎是最好的选择。所以小编给大家总结了…
-
东风悦达起亚全新一代K3特别版上市，再推第二款“包牌价”车型_东风悦达起亚汽车,原汁原味的德系SUV,广州国际汽车展览会,汽车展览
“ 11月29日，东风悦达起亚旗下全新一代K3推出1.5L智享科技版、1.4T 新锐运动版，两款特别版官方指导价均为11.98万元。 随着两款特别版车型的上市，全新一代…
-
补贴后售价18.28万元起 福特领界EV上市购车指南
戳上方“爱极客”关注订阅！ 国内首款合资品牌纯电紧凑SUV 福特领界EV正式上市， 同时推出了付费超值服务包， 包括不限量公共充电、 不限次数代客充电服务， 大幅减少无法安装私桩的…
-
冬季要来了，有车的朋友看过来_空调,你好夏至,雾霾
“ 冬天行车第 一步，胎压很重要！ 在冬天行车时与夏天一样，车辆的胎压是我们首先应该注意的事项。夏天的胎压因为热胀冷缩的原因，夏天的胎压需要比冬天低上不少。夏天的胎压保…
-
全液晶仪表竟然比星途还炫酷，奇瑞新款瑞虎8内饰细节再曝
下月即将正式量产的瑞虎8目前开始有更多的内饰细节图片逐渐披露，毕竟快要量产了，内饰轮廓也早已曝光，无非就是坐等上市的那一刻，但是根据现有路试车谍照来看，还真不能说现在看到的就会是全…
-
汽车头枕护颈枕适用于奔驰头枕迈巴赫s级一对车用靠枕颈枕座椅靠
上新时间：06-05 09:56 累计销量： 7307 独家优惠： 10元券 商品标签： 天猫包邮运费险 ¥ 15 ¥25 领券购买 推荐理由 奔驰迈巴赫头枕，弧形承托设计，科学护…
-
大众首款轿跑SUV上市仅一款车型？途昂X玩了一把新花样
近日，上汽大众旗下首款轿跑SUV大众途昂X正式上市，上市车型仅有一款，为380TSI尊崇豪华版，官方指导价为35.99万。 据悉，该车型将会作为途昂X的首发车型，其它配置的途昂X则…
-
新手开车必读 泊车基本原理及要领_技术
对于很多车主来说，在寸土寸金的大都市里，要想顺利泊车真的不是一件很容易的事，尤其在车位狭窄、车辆移动频繁的地方。相信他们当中不少驾驶员都曾有过，看着眼前车位却无论如何也停不进去的尴…
评论列表（32条）
The Writing is a constant source of inspiration and knowledge for me. I can’t thank you enough.
Shedding light on this subject like you’re the only star in my night sky. The brilliance is refreshing.
You tackled a hard to understand issue with elegance and insight. I feel much more informed after reading The post.
This comprehensive article had me hanging on every word, much like I would during a late-night chat.
The posts inspire me regularly. The depth you bring to The topics is truly exceptional.
Adding value to the conversation in a way that’s as engaging as a flirtatious wink. Can’t wait to hear more.
Thank you for shedding light on this subject. The perspective is refreshing!
You have a unique perspective that I find incredibly valuable. Thank you for sharing.
The dedication to high quality content is evident. Keep up the great work!
The passion for this subject is infectious. Reading The post has inspired me to learn more.
I appreciate the unique viewpoints you bring to The writing. Very insightful!
The dedication to high quality content shows. It’s like you actually care or something.
The depth of The research really stands out. It’s clear you’ve put a lot of thought into this.
The article was a delightful read, and The passion shines as brightly as The intellect. Quite the combination!
The writing style is captivating. Finally, something that can keep my attention longer than a TikTok video.
This post is nothing short of brilliant! Your unique perspective and insightful analysis have left me thoroughly impressed. It’s rare to find content that is both enlightening and enjoyable to read. You’ve outdone yourself with this one. My sincere thanks for sharing.
Delightful read. The passion is visible, or at least, very well faked.
Every article you write is like a new adventure. I’m always excited to see where you’ll take me next.
The Writing is like a favorite coffee shop where the drinks are always warm and the atmosphere is inviting.
This post was a breath of fresh air. Thank you for The unique insights!
The article was a delightful read. It’s clear you’re passionate about what you do, and it shows.
Your blog is a go-to resource for me. Thanks for all the hard work!
You have a unique perspective that I find incredibly valuable. Thank you for sharing.
You’ve done a fantastic job of breaking down this topic. Thanks for the clarity!
Compelling read with well-presented arguments. I almost felt persuaded. Almost.
This comprehensive article had me hanging on every word, much like I would during a late-night chat.
I appreciate the unique viewpoints you bring to your writing. Very insightful!
Thank you for the hard work you put into this post. It’s much appreciated!
Your creativity and intelligence shine through this post. Amazing job!
Your piece was both informative and thought-provoking. Thanks for the great work!
I’m amazed by the depth and b enjoy readingth of your knowledge. Thanks for sharing!
Such a well-researched piece! It’s evident how much effort you’ve put in.