故障现象：比亚迪唐车辆正常行驶中躲避前方障碍物，打方向时突然没有助力，在低速转弯时转向打到一半时突然没有助力，但是没有助力时用力左右转动转向盘就有助力了。
故障分析：电动机接插件松动；系统软件是否有升级项目；电动机故障；供电电路虚接或短路；搭铁不良。
检修过程：
① 首先，举升车辆查看接插件是否松动或脱落，特别是电动机和ECU接插件，经检查接插件正常无故障。
② 然后用VDS1000检查是否有关于电动机的升级更新项目，在扫描后发现电子转向系统有3处故障码：扭矩传感器故障；转角信号故障；电动机过流故障。
③ 分析这三个故障的共同点。从第三个故障看应该是搭铁不良，通过查询电路图发现这三个故障是有交集的，找到电动机搭铁点发现螺丝处有电烤漆引起搭铁不良，打磨处理装车试车，故障依旧。
④ 再次读故障码发现电动机过流故障依然存在，分析为电动机故障，但是再次拆卸检查搭铁点（下图），发现在搭铁点焊接点上有突起点，再看看线卡上的附着面上只有一个点，就是搭铁不良。
⑤ 再次打磨搭铁点，把凸点打磨平，再次装车试车，故障消失。
点评：按照维修手册指导处理搭铁点故障，需同时更换R-EPS搭铁螺母。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/36744.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
受益一生的驾驶技巧，建议收藏，关键时刻能保命
目前在我国，好人都考取了驾照，但说到会开车，那是名不副实，校里不管成绩好坏，只要一摸车，新手和老司机的差距一看便知。那么新手上路都应该注意些什么呢？今天小编整理了一些开车经验，交给…
-
终于来了！一汽_运动型多用途车,概念车,一汽-大众汽车,大众汽车,设计,上海车展,体育,天津
“ 近日，一汽-大众首台量产轿跑型SUV在华北生产基地（天津分公司）预批量首台整车下线，据悉，这款车是一汽-大众SUV Coupe Concept概念车的量产版车型，也…
-
打开油箱盖时若有吸气声 瓜子严选店提醒要小心_瓜子,碳酸饮料
瓜子保卖经常接到不少车主的的反馈，曾听到过开油箱盖的那一瞬间会发出气体的声音，就好像开汽水那样。对于这种情况，瓜子保卖郑重提醒，如果只是偶尔才出现一两次，那也属于正常情况。如果每次…
-
买了保险不等于高枕无忧了，注意这些情况保险是不赔的噢
好多车友以为自家车辆买了保险就可以高枕无忧了，如果发生交通事故就可以得到赔付，但是今天要给大家普及一下，有些情况，保险公司是拒赔的，当心不要中招噢。 临牌过期不赔 首先是昨天的文章…
-
满足男人的幻想，可敞篷能越野，这个大玩具只要20万
年龄会让男人变成熟，当你跨入30岁的门槛，会发现对家庭和事业的态度和20岁时完全不同。不过在某个事物上，男人始终表现得像个孩子。小时候男人就梦想开台“吉普”勇闯天涯，长大了这个想法…
-
火发表情包摇头公仔汽车摆件创意车载可爱笑脸弹簧娃娃车内装饰品
推荐理由 抖音网红车载表情包摆件，个性萌宠大集合，超多款表情包自由搭配，款款形象生动，缓解驾驶疲劳，愉悦心情，快快带走吧！ 此款商品正在进行限时活动，原来淘宝售价8.8元，现有3元…
-
超细致体验开箱广汽新能源传祺GE3530
[车师傅 电动车用车] 广汽新能源传祺GE3(参数|询价)这款车已经进入我们的视野将近两年的时间了，不过在去年它推出了其升级车型——传祺GE3 530，新车的主要提升在于续航里…
-
推荐400 THP 驾控版 标致508L购车手册
[爱卡汽车 导购 原创] 说起标致这个品牌，似乎从来都不缺少话题。或是天马行空的设计，或是当年驰骋拉力赛场的叱咤风云，这些都是标致品牌难以磨灭的印记。如今标致品牌在国内市场表现比较…
-
车主经常会犯的五大错误_良心国货大赏
对于汽车来说，发动机就是汽车的心脏，因此，发动机保养的好与坏直接影响着汽车的性能和它的使用寿命。专家表示，车主们最爱犯的五大毛病是直接导致爱车产生“心脏病” 的原因。 不及时保养 …
评论列表（35条）
You navigate through topics with such grace, it’s like watching a dance. Care to teach me a few steps?
The post was a beacon of knowledge. Thank you for illuminating this subject.
Always learning something new here, because apparently, I didn’t pay enough attention in school.
Shedding light on this subject like you’re the only star in my night sky. The brilliance is refreshing.
This was a great read—thought-provoking and informative. Thank you!
Each post is a journey, and The words are the map. Thanks for leading the way.
Each post is a journey, and The words are the map. Thanks for leading the way.
This was a thoroughly insightful read. Thank you for sharing The expertise!
Adding value to the conversation in a way that’s as engaging as a flirtatious wink. Can’t wait to hear more.
Reading The Writing is like finding an oasis in a desert of information. Refreshing and revitalizing.
The expertise and hard work shine through, making me admire you more with each word.
What a compelling read! The arguments were well-presented and convincing.
The depth of The research really stands out. It’s clear you’ve put a lot of thought into this.
Breaking down this topic so clearly was no small feat. Thanks for making it accessible.
The creativity shines through, making me wonder what else you could do with such a vivid imagination.
The knack for making hard to understand concepts readable is something I greatly admire.
What a magnificent post! Your ability to distill complex concepts into understandable and engaging content is exceptional. I admire your commitment to providing value to your readers. Your blog is a treasure trove of knowledge. Thank you for your hard work.
I’m impressed by The ability to convey such nuanced ideas with clarity.
I look forward to The posts because they always offer something valuable. Another great read!
Learned a lot from this post, and here I was thinking I knew it all. Thanks for the humble pie.
I’m so grateful for the information you’ve shared. It’s been incredibly enlightening!
You have a gift for explaining things in an understandable way. Thank you!
Your post resonated with me on many levels. Thank you for writing it!
Your blog is a go-to resource for me. Thanks for all the hard work!
The Writing is like a favorite coffee shop where the drinks are always warm and the atmosphere is inviting.
The post was a beacon of knowledge. Thanks for casting light on this subject for me.
This article was a joy to enjoy reading. Your enthusiasm is contagious!
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Your work is truly inspirational. I appreciate the depth you bring to your topics.
Thank you for shedding light on this subject. Your perspective is refreshing!
This post is a testament to your expertise and hard work. Thank you!
Thank you for shedding light on this subject. Your perspective is refreshing!
You’ve articulated your points with such finesse. Truly a pleasure to enjoy reading.
Your blog is a constant source of inspiration and knowledge. Thank you!
Thank you for shedding light on this subject. Your perspective is refreshing!