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
-
哈弗H10霸气来袭，外观帅气无他，价格，一如既往的厚道
不得不承认，国产SUV的发展真的是快速前进，像长城旗下的哈弗H6，宝骏510，吉利缤越等等，不管哪一款都是爆款，其中哈弗H6名声最大，被公认为国产SUV神车。长城也是抓住了机会，没…
-
“职教二十条”发布以来，汽车人才培养有什么变化？_新能源汽车,技术,跳槽那些事儿,职业教育,清华大学,国创上头条,经济,能源,大学,新能源,招聘,长安汽车,牢记嘱托 献礼70周年 河南城市名片,人力资源,工程师
“ 近日，由中国汽车工程学会主办的“2019第十六届全国汽车职业教育年会（NAVEC）”在汽车产业相关人士的关注下圆满举行。此次“年会”，可以看作是自年初国务院发布《国…
-
奥德赛的尺寸却只要9万起，发动机用的还是合资货，这MPV要火
从整体市场的表现来看，MPV市场的确很长时间陷入了一种下滑的状态当中，但这一市场又是冰火两重天的景象，因为以五菱宏光等车型为代表的物流型MPV的确在大幅下降，但是以宋Max为代表的…
-
英菲尼迪QX50降了快7万了，车也好车，为啥买的人不多_英菲尼迪QX50,英菲尼迪QX70,奔驰,本田技研工业,马自达,奔驰GLC
“ 很多人都说英菲尼迪QX50是一台好车，就如同很多人说马自达的车很好一样。这两者的确有很多共同点，比如说都是日系品牌，比如说两者都叫好不叫座。 就拿英菲尼迪QX50来…
-
春节除了“疯狂的外星人”还有“流浪地球”上的“飞驰人生”
春节假期结束的第一天，想它；春节假期结束的第二天，想它想它，春节假期结束的第三天，想它想它想它。 对于刚刚结束的春节假期，小编颇有些当年“依萍”怀念“书桓”的感觉，虽然人是已经到了…
-
奥迪 e_奥迪e-tron,奥迪,MODEL X,国家电网,上海,原汁原味的德系SUV,北京奔驰,奔驰,特斯拉汽车,BMW
“ BBA 三家这一轮的电动化攻势，从 SUV 车型开始。奔驰有 EQC，奥迪有 e-tron，宝马有 iX3。在中国，最先上市的会是进口版奥迪 e-tron，紧跟着是…
-
15万要买合资中级车！速派、君威、雅阁应该怎么选？
小伙伴们大家好，新的一期《超级买手》又来啦！这一期内容葱哥再次吐血制作，小伙伴的选车问题极具代表性，快来看看！ 葱哥！最近想换台车，因为之前一直开小车，所以这次想换个稍微大一点的，…
-
买现代菲斯塔的都是哪些人群呢？采访十几位菲斯塔车主后有了答案
北京现代轿车在这两年里面也算是很有成就的了，从名图到索纳塔及其领动都是一路平平淡淡的，销量不能说好而不能说差，很多车友还是觉得日韩车都很一般，喜欢德系车，不过思域出来后很多车友对本…
-
两款车都叫柯迪亚克，加个“GT”就不知道怎么选了吗？
很长一段时间以来，国内消费者谈到对中型SUV的期望时，性价比都是首当其冲的。但往往当一款产品各方面的表现都很均衡时，又会被人“嫌弃”太过中庸。所以这个级别的车型在致力成为没有短板的…
评论列表（31条）
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.