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
-
对不起，开着这台2019年全新的雷克萨斯UX，真的能轮下生花！
转眼间，2019年已经差不多过去一个星期了，无论新的一年有没有钱，车还是要买的。你不买，它还在原地。你买了，它就成为你的“小老婆”，你可以天天宠它，保养它。那么在2019年，作为汽…
-
不施工也没事故发生，为啥国内道路还异常拥堵？专家：都怪这类人
在汽车已经接近饱和的程度下，我国的道路压力也变大了许多。人们在开车的时候总是希望道路能够更加顺畅，但是事实却刚好相反，汽车数量的增多必然会加大交通的压力，所以车主们只能忍受这一问题…
-
车载挂式纸巾盒车内遮阳板天窗椅背抽纸盒创意纸盒抽汽车用品大全
推荐理由 创意车用纸盒车载挂式，不挡视线，环保无异味，不占空间，抽取方便，好用不贵。【赠运费险】 此款商品正在进行限时活动，原来天猫售价19.9元，现有3元优惠券，到手仅需16.9…
-
骐达失宠？德系两厢昕动2019款上市，发动机全面升级标配自动启停
纯正德系高性价比车型，上汽斯柯达2019款昕动全面升级而来，官方指导价在6.99-10.99万元，点燃市场激情，甚至有人断言，日产骐达即将失宠！2019款昕动拥有大两厢空间，而且发…
-
2019款猛禽技术详解，它为什么是越野皮卡的一个标杆的存在？_皮卡车,越野车,福特汽车,长城哈弗,设计,三菱集团,奥迪,维尔福,哈弗H9,斯巴鲁汽车,自行车,技术
“ 文 懂车帝App原创 张熙 2019年是个硬派越野车小爆发的一年，最近刚刚改款的哈弗H9，刚刚上市的长城炮等车型，都强调了自己越野的属性，那么通过这篇文章，就让各位…
-
自驾游想要玩的安心，要做好哪些准备？
高考结束了，中考也结束了，暑假也来了，相信不少家长都想在这个暑期带着孩子进行一次自驾游，殊不知自驾游前我们还是需要做好一些准备工作的，这样在自驾游的时候才能安心出行，玩得放心，那么…
-
各大车企颤抖吧 众泰i
日前，众泰汽车官方发布了众泰i-across概念车量产版设计图，其代表着众泰最新“道法自然 智美天成”全新3.0时代设计理念，据悉，众泰i-across量产版车型将于上海车展正式亮…
-
补齐冰天雪地，踢车帮终于全面了解了这个品牌的全部车型
从夏老师参加领克01的“提前批”试驾，到Bono主编驾驶着领克03在赛道上驰骋，再到三位九零后一起评测领克02，踢车帮按理说已经是对领克的主力产品非常熟悉了。但，没有冰雪试驾，一切…
-
自主MPV代表者——评宝骏730
提到自主品牌MPV，大家一定不会忽略宝骏730。作为神车缔造者，五菱宝骏在近年推出的微型面包车、MPV和SUV等均取得了不俗战绩。这其中，宝骏730以大空间、好颜值和相对实惠的售价…
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!