摘要目前市面上的车型，不管是高档的商务豪华轿车还是中档的经济型轿车，乃至家用的小型轿车，电器在汽车上的应用已经非常广泛！现代汽车维修服务于千家万户，面对的是机、电、液一体的高科技集成物，且种类繁多，技术更新快，对从业人员的要求越来越高。从专业能力分析，要适应汽车维修及相关工作需要。本文首先对汽车前照灯的工作原理、结构，分类以及一些最基本的常识进行详细讲解；在自己足够了解这些基础知识后才能使我们迈向更为复杂的电路知识.然后再了解基础知识后我们进一步对汽车前照灯的故障进行进一步了解，比如汽车前照灯的一般故障现象、故障原因；然后根据这些理论得出一些心得体会，比如一般汽车前照灯的故障维修思路步骤等等。最后通过桑塔纳2000汽车前照灯故障实例的整个维修过程加深我们对这项故障操作技能的掌握，最后通过对汽车发动机自动熄火故障维修案例的分析更进一步的加深了对汽车发动机此种故障的理解，使得今后在处理类似故障的时候就显得游刃有余了；同时通过对汽车发动机各方面的理解，也使得我们对汽车有了一个更加全面的理解。2AbstractModelscurrentlyonthemarket,whetheritiseconomiccarhigh-gradecommercialluxurycaristhemiddlegrade,andsmallhouseholdappliancesinthecar,thecarontheapplicationhasbeenveryextensive!Modernautomobilerepairserviceisappliedtothousandsofhouseholds.Itfacesthehigh-techintegrationofmachine,electricityandliquid.Ithasmanykindsoftechnologies,anditrequiresmoreandmorepractitioners.Thispaperfirstexplainstheworkingprinciple,structure,classificationandsomebasiccommonsenseoftheheadlamp.Afterknowingenoughbasicknowledge,wecanmakeusmovetowardsmorecomplexcircuitknowledge.Thenwefurtherunderstandthebasicknowledgeoftheautomobileheadlampfailure,suchasthegeneralfaultphenomenonofautomobileheadlamp,thecauseofthefailure;Then,accordingtothesetheories,someoftheirownexperience,suchasthegeneralautomobileheadlamptroublemaintenancethinkingstepsandsoon.ThroughthewholemaintenanceprocessofSantana2000GSIautomobileheadlampfailureexample,wehavedeepenedourunderstandingofthisfaultoperationskill.Finally,wefurtherdeepenedourunderstandingoftheautoenginefailuremaintenancecase,whichmakesusmorecomfortableindealingwithsimilarfaults.Atthesametime,wehaveamorecomprehensiveunderstandingoftheautomobileenginebyunderstandingthevariousaspectsoftheautomobileengine.3目录1桑塔纳汽车前照灯故障诊断与排除............................51.1预约与准备工作..........................................51.1.1工作任务描述......................................51.1.2预约..............................................51.1.3准备工作..........................................61.