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
-
全险不等于全赔，15种情况保险一毛都不赔，你都知道吗？
给爱车买上了全险，出了事故的时候，却发现得不到赔偿。这就是我们常说的全险并不等于全保，今天就来说说15种保险公司拒赔的情况！ 驾驶证出现问题 01、无证驾驶 这就提醒各位车主朋友，…
-
手动挡爬坡用几档，一档爬坡伤车吗_
不知道你们是否为手动挡爬坡用几档而有过烦恼。如果选择的档位太低，不仅造成动力浪费，爬坡速度还慢。假如选择了高档位，又会造成动力不足车辆发抖甚至压根就爬不上去。今天车主指南，为你拨开…
-
如何领到终身免检驾驶证车管所：满足这些速来换证_交通,货车
“ 随着人们生活水平质量好了，汽车的出现，人们都感受到了方便， 随着人们买车的越来越多，需要驾驶证的人群肯定也越来越多，刚上大学的大学生，刚刚生产完的宝妈等等，为了方便…
-
汽车下乡政策还没落地这些车型已经开始发补贴了最高2万2
2018年中国车市迎来20多年后首次寒冬，其中不少车企更是在2018年呈现销量大幅下滑的趋势，同时，此前提振整体市场的SUV产品也出现了负增长。 为了促进汽车消费，近日国家发改委等…
-
换标的XR-V，东风本田X-NV正式上市
东风本田X-NV将于10月30日上市，新车基于东风本田XR-V车型打造，未来将推2款配置车型分别为风驰版和电掣版，使用纯电驱动系统，NEDC综合工况续航里程为401km。 外观 新…
-
一汽公司再创辉煌?这款车刚上市就引爆全场!
近日，一汽丰田公司再创辉煌推出一款新型汽车，名为“丰田亚洲龙”光是听名字就给人一种震撼的感觉。丰田亚洲龙火速登上市场，那就意味着让中型B级轿车市场再一次掀起巨浪!有人会问此话怎…
-
长安欧尚汽车：那就做个硬核的实力派吧！
总第727期 全文共2790字，阅读大约需要5分钟 总编辑|马黎明 执行副主编|谭扬 责编|张宇 采编|谭扬 不知从何时起，“硬核”这个原本属于游戏和说唱音乐的网络用语，来到了我们…
-
话题：捷达成为大众全新子品牌Jetta logo设计太不走心
近日，作为“老三样”中的捷达选择了独立，成为了专门为中国市场打造的大众全新子品牌-Jetta。据悉，全新子品牌的设计研发由德方主导，在新品牌推出之后，一汽·大众将负责三个品牌，且都…
-
上市要碾压X5，5.7S破百配无框门，比卡宴还漂亮，男人谁能拒绝
在如今国内的汽车市场上，得益于经济不断的提升，确实是诞生了一批又一批的有钱人，而相比几年前，目前的大多家轿车也不再是那么的吸引人了，不难发现，在生活中无论是走在任何的大街小巷，几乎…
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.