图文原创 作者| 大神修卡车
车型配置
解放JH6.锡柴国四.EDC17-E4〈EDC17CV44〉博世6.5尿素泵
故障现象
亮后处理故障灯，不烧尿素，司机反应动力影响不明显。
故障码
看下图 故障码照片
故障分析-维修过程
看故障码都是历史故障，报的有氮氧传感器的，测量了下氮氧传感器的正负极供电正常24V又测量了下CAN电压电阻都正常〈CAN H2.6 CAN L2.4 电阻60左右〉 还有一个故障码是 SCR喷射时压力过低，就检查尿素滤芯发现比较脏，更换尿素滤芯。
还有故障就是尿素温度故障和尿素液位故障，这个故障从检测仪数据流中可以看到，于是就点击进去看了下数据流，就发现尿素温度负15℃ 还在那里乱跳；
由于不知道尿素温度影响不影响烧尿素，于是就求助了小轨在线问答师傅，师傅回答说影响烧尿素，厂家一般标定在零下五度只左右，知道影响烧尿素就好办了，就到线路图，测量电压是否正常，测量发现，两个5.7V两个0V ，线路正常，就换了尿素温度液位传感器，在看了下尿素温度，这次正常了和本地的温度差不多，还有一个就是加热故障，我是这么想的温度一直都是负，就算在加热温度还是负的，所有报出来了这个加热故障。
结果
试车一切正常，尿素温度和尿素滤芯 导致不烧尿素 点亮故障灯 ，
案例总结
在维修过程中，了解车辆的控制策略也非常重要。
福利~大福利~特大福利~~
1元领取卡车维修书籍
关注微信公众号 [ 大神修卡车 ]
回复“1元”即可查看领书详情
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/33269.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
过年期间，芝加哥车展上我们或许迟点能买的重磅车！
从2019年的2月7日起，大洋彼岸的芝加哥车展就如火如荼开启了，尽管跟咱们过大年相比，这个车展可以说是热度全无，但里面展出的不少重磅车型，或许就是咱们今年奋斗的小目标？ 以下就给大…
-
未来10年内，汽车8大革命性技术
【编者按】个性化将会是未来十年汽车发展的主题。 本文转载自汽车商业评论，原作者石彩云；由亿欧汽车整理转载，供行业内认识参考。 把你的车远程召唤到一家店面前，它几分钟内就能到达。然后…
-
柯迪亚克GT用加速度打脸探界者redline：玩运动不仅仅是加点套件_超时空甩尾,体育,设计,原汁原味的德系SUV,美国汽车,斯柯达汽车,雪佛兰,高尔夫GTI
“ 外观颜值在人的第一印象中占据非常大的比重，而一辆车的颜值高低，更是直接影响到消费者有没有欲望对它再进行深一步的了解。雪佛兰探界者Redline以运动造型闻名，斯柯达…
-
如今的雷克萨斯还不如十年前？
近5年时间内，全球汽车工业的发展达到了前所未有的速度，民用车开始普及许多此前从未耳闻的功能或配置，例如48V轻混系统、L2甚至更高级别的自动驾驶、主动刹车、后轮转向、智能语音控制等…
-
奔驰B级提车，这车还是很少见的！
近些年，事业蒸蒸日上，父母一直是我的坚强后盾，想增添一辆车子孝敬一下父母，当然是要体面、安全、舒适等各方面越尽善尽美越好了！主要预算是在20-30万，日韩的车子全部不考虑。综合考虑…
-
别再被4S店忽悠了，有些零件不需更换，省钱就是赚钱啦！
平时汽车开着没啥事，但只要进了4S店就会被告知这个坏啦、那个不能用啦，一顿忽悠，少则几百，多则上千，这些钱自己都不知道怎么花的。今天说说汽车零部件的保养、更换周期，别再被4S店忽悠…
-
6月中大型轿车销量排行：XTS抢尽风头/辉昂半死不活，皇冠下滑了_凯迪拉克XTS,轿车,大众汽车,豪华车,奔驰,东风A9,奔驰E级,凯迪拉克,奥迪A6L,红旗H7,奥迪,BMW 5系
“ 2019年6月中大型轿车销量排行榜完整版出炉了，具体排名如下： 奔驰E级和宝马5系两款车型的销量几乎不相上下， 6月份的排名分居前两位，奥迪A6L则逊色了一些， 6…
-
尺寸小，排量不超过1.0L，为什么K-car在日本会那么受欢迎？
上周阿贵看车组织了团建——去日本旅游，看到了许多和国内迥异的汽车文化，而这里头最值得一书的莫过于K-car——这是一种尺寸不大、排量微小，但空间利用率和经济性却相当高的车型，更因此…
-
大众Golf A7、Golf SportsVan前门无一键升降功能解决方案_大众汽车
Golf A7、Golf SportsVan前门无一键升降功能 故障现象： Golf A7、GolfSportsVan前门无一键升降功能，但前车门玻璃可以通过本地开关或者主驾开关点…
-
全新本田艾力绅实车实拍，外型更加精致，最年轻的MPV？_本田艾力绅,本田技研工业,多功能休旅车
“ 新车针对外观进行了小幅调整，其中前脸部分变化最为明显， 格栅饰条更加粗壮，看起来更显精致大气。 长宽高分别为4950/1842/1711mm，轴距为2900mm， …
评论列表（39条）
Charlotte Dog Park has such a chill atmosphere—I can unwind while my dog has the time of his life.
Charlotte Dog Park is where my dog’s dreams come true—endless space to run and sniff everything.
The community at Charlotte Dog Park is so friendly; I’ve met some great people while my dog plays off-leash.
Charlotte Dog Park is where my dog’s inner athlete comes out—he’s a jumping, running star!
The smells my dog discovers at Charlotte Dog Park keep him entertained for hours—he loves it.
Opened my eyes to new perspectives, and here I was thinking I’d seen it all.
The attention to detail is as attractive as it is thorough. I appreciate a person who notices the little things.
I appreciate the balance and fairness in The writing, like a perfect partner who always keeps things interesting. Great job!
You’ve opened my eyes to new perspectives. Thank you for the enlightenment!
The post was a beacon of knowledge. Thank you for illuminating this subject.
Thank you for making hard to understand topics accessible and engaging.
Thank you for consistently producing such high-high quality content.
Handling topics with grace and authority, like a professor, but without the monotone lectures.
The thoughtful analysis has really made me think, in a way that’s as stimulating as a deep gaze into The eyes.
Packed with insights, or what I call, a buffet for the brain.
Packed with insights, or what I call, a buffet for the brain.
Unique viewpoints, because who needs echo chambers?
Such a well-researched piece! It’s evident how much effort you’ve put in.
The attention to detail didn’t go unnoticed. I really appreciate the thoroughness of The approach.
The ability to convey nuanced ideas with clarity is as alluring as a whispered secret.
The blend of informative and entertaining content is perfect. I enjoyed every word.
The writing is a masterpiece. You managed to cover every aspect with such finesse.
Appreciate the balance and fairness, like a judge, but without the gavel.
The insights added a lot of value, in a way only Google Scholar dreams of. Thanks for the enlightenment.
ChatGPT
This was a great read—thought-provoking and informative. Thank you!
The insights add so much value, like an unexpected compliment that brightens one’s day. Thanks for sharing.
Engaging with The content is like embarking on a treasure hunt, where knowledge is the prize.
Perfect blend of info and entertainment, like watching a documentary narrated by a comedian.
The balance and fairness in The writing make The posts a must-read for me. Great job!
Each post is a journey, and The words are the map. Thanks for leading the way.
Thank you for the hard work you put into this post. It’s much appreciated!
Your attention to detail is remarkable. I appreciate the thoroughness of your post.
The clarity and thoughtfulness of The approach is as appealing as a deep conversation over coffee.
The dedication to high quality content is evident and incredibly appealing. It’s hard not to admire someone who cares so much.
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your ability to distill complex concepts into enjoy readingable content is admirable.
Your insights have added a lot of value to my understanding. Thanks for sharing.
Your ability to distill complex concepts into enjoy readingable content is admirable.