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
-
马自达今年的第二款新车，你猜是改款CX-3还是欧规CX-4？
马自达将最新科技赋予全新一代Mazda 3，并在今年年初的北美车展上正式亮相。而今，距离日内瓦车展还有一个月的时间，马自达又再次放出一款全新SUV车型的背影，却对新车信息严防死守。…
-
这些保险费是“白”花的，你知道吗？_头号大赢家| 理财大赛第二季,广东,海南,汽车保险,台风
来源：懂车（id：idongche），懂车更懂你！ 作者：智仁；转载请带以上信息视为自动授权 汽车保险是在日常用车中产生的一笔不小的费用，但是合理的购买车险能让这笔支出既能保证车辆…
-
全国首辆2019款东风日产逍客下线，好似小号奇骏，奔驰动力却没了
全国首辆2019款东风日产逍客下线，好似小号奇骏，奔驰动力却没了 作为东风日产在入门级紧凑型SUV领域的代表作，逍客应该是合资品牌中最早涉水这一细分市场的车型了，虽然当初它上市时的…
-
特斯拉充电涨价33%，其他充电运营商会跟着涨吗？
首先我们来简单了解以下特斯拉充电价格上涨33%的故事， 日前，特斯拉官方宣布随着免费充电计划的终止，特斯拉将全球超级充电站的充电价格平均提高33%。目前，特斯拉在全球运营1422个…
-
网约车平台再裁员，股东抛售股份，网约车纷纷开始过冬
【编者按】网约车的烧钱模式依旧存在隐忧。比如整体盈利前景不明晰，重资产运营难以持续，地方保护主义加剧，运力短板突出，合规牌照套利居多等。 本文转载自瓜姐讲堂，原作者出租车TAXI；…
-
最实用材料，亚洲龙问题咨询汇总
亚洲龙上市一个月有余，本人针对这一个月中网友关注比较多的问题，进行了整理回答，希望可以帮到大家。 1）亚洲龙最大的突破是什么？ 本人认为是亚洲龙的外观设计，一点都不像丰田车，…
-
车牌丢失报警备案了可以上路吗？交警：没这个动作，扣12分_
大家都知道，如果一辆车没有车牌的话，是不可以上路的。但是也有特别的情况，那就是车牌丢了、损坏或者被盗了，此时车辆可以上路吗？并且在这样的情况下该如何做呢？ 在近日，车行哥在网上看到…
-
490.484km/h！布加迪Chiron创下新的极速纪录_布加迪,设计
“ 9月2日信息，布加迪官方twiter公布称，布加迪Chiron最新款原型车创出了新的的极速纪录。据了解，Chiron原型车应用原型由布加迪Chiron打造出，新汽车…
-
日内瓦车展亮相雪铁龙全新概念车预告
[车师傅 新闻] 日前，雪铁龙发布的最新宣传视频显示，雪铁龙计划在今年发布两款全新概念车，其中一款将在3月举行的日内瓦车展亮相，而另一款则会在夏季举行的Viva Technol…
-
下一代BRZ很快就来到，但还能与丰田维持合作模式？
日前有日本媒体传出，属共享平台的丰田86、斯巴鲁 BRZ 将终止开发，但不论是丰田或斯巴鲁原厂皆双双驳斥传闻，甚至美国斯巴鲁发言人还进一步指出 BRZ 以确认会开新一代车型，但其余…
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.