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1、上海别克防盗系统的原理及解除AShanghaibuickGLXcarhasbeenrepairedbyarepairshopafteratrafficaccidentonahighwa.y.Repairpersonneltoturntheignitionswitchtostartthefiledoesnotreflecttheprominentmotivation,directlytoelectricity,startermotorstartercanrun,butstillcan,tstart,thereasonisnoinjectionsigna1.Therepairmanthi
2、nksthatitisthepowercontrolmodule(PCM)failuretoaskthecompanyforhelp・Bytelephone,Iconfirmthatitwastriggeredbytheburglarsystem,soItookthetech-2instrumenttothescene・Hereisthetroubleshootingprocess:Readtheerrorcodefromtheinstrumentandreadthe〃DTCB2958ignitionkeytoconfirmthelineofdataline/tothebattery
3、shortcircuit〃・(theinstrumentappearstobea"safetysensoropen,"whichisinterpreteddifferently.)Checktheresistanceoftheignitionkeytoabout500ohms,nocircuitbreakers・3,nowdoubttheignitionswitchlockinternalcontactundesirable,dismantlingoftheignitionswitchbutlargerworkload,theninserttheignitionkeyintheign
4、itionswitch,readytoconfirmthecablefromtheignitionswitchatthebackoftheignitionkeyresistancemeasurement・Ifyoucan,tmeasuretheresistance,youcanbesurethatthecontactisbad,andifyoumeasuretheresistanee,itcouldbethebodycomputer(BCM)andthefaultywiring・4,removethedashboardunderguardboard,foundthattheignit
5、ionkeytoconfirmcableandwiringplugfallofftotheBCM,recorinect,withinstrumentsandclearfaultcodes,theenginecanbenormalboot,troubleshooting.Thisexampleisthefailurecauseofrepairpersonneltorepaircaraccidentcausedbythecarelessnessofthejob,ifrepairstaffknowShanghaibuickanti-theftsystemstructureandprinci
6、pleofnoinstrumentcantroubleshoot・ThisarticleintroducestheremotecontrolsystemadoptedbyShanghaibuick・Shanghaibuickremoteanti-theftsystemiscontrolledbyaremotecontroldoorlockandPASSoriginalKEY-KEYIIcontroltwosystems・Usethesetwosystemstoopenthedoor,thecabindoor,theoilcasecoverisnormallyopen・Otherwis
7、e,itisillegaltoopen.Whenthesecuritycontrolsystemisinastateofalert,allthedoorsarelocked,atthispoint,thesecuritycontrolsystemwilltaketheironcircuitstarterrelaycontrolcircuitiscutoff,thestarterwillnotwork,atthesametimecontrolthepower