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1、丰田车蓄电池放电（TOYOTAbatterydischarge）-TOYOTAbatterydischargeManufacturer:ToyotaAutoBodyCo,licenseplatenumber:crownE-MS137,enginemodel:7MGEtype,productionyear:1991,mileage:65000km.Symptom:batterydischarge.Troubleshooting:firstremovethebattery,andthensetthecharge
2、rtomeasurethecurrentconsumptionofthevehicle.Loadthechargedbatteryintothecarandthenconnectacurrentmeteronthe"-"terminaltomeasurethedarkcurrentconsumedbythevehicle.Asaresultofthemeasurement,thekeyignitionswitchisplacedintheOFFposition,andthe1mincurrentiscont
3、inuedtobe1.25A.Thecurrentshouldonlylast5S.Sothisisthecauseofthebatterydischarge.Settheammeter,putthekeyignitionswitchintheOFFposition,waitfor5S,thenpulloutthefuseandrelayinsequence.Thedarkcurrentdropssignificantlyafterthepowerseatrelayisremoved.Investigate
4、electricseatcircuit,switchshortcircuit,cannotcutoffthecurrentofthiscircuit.Replaceaswitchandtheproblemissolved.Return--------------------------------------------------------------------------------EmergencytreatmentofsparkplugIfthesparkplugfailsontheway,th
5、ecarwillcausehairandtheenginewillnotworkproperly.Ifthecauseofthemalfunctionofsparkplugelectrodecarbonelectrodegapisseriousorwrong,canbeexcludedbytheremovalofcarbondeposition,adjustthegap,ifthesparkplugfuseorleakageorroundedshapeelectrodecannotproducesparkf
6、ault,andthehandsandnospareparts,wecanaccordingtothefollowingmethodsofemergencytreatment.1.sparkplugnexttotheelectrodeburnedWhenthesparkplugburns,itdoesnotproducesparks.Inthiscase,theavailableplierswillcarefullybendtothesideofthecenterelectrode,andkeepitint
7、he0.6-0.9mmgapcancontinuetousetheedgewiththesparkplug.2.sparkplugcentralelectrodeburnoffInthiscase,theceramiccoreofthesparkplugskirtcanbeknockedoffaparttoexposethecentralelectrodeofabout5mm,andthentheinnersideelectrodeisbentinwardssothattheclearancebetween
8、thetwoelectrodesis0.6-0.9mm,andtheutilitymodelcanbecontinuedtouse.3.sparkplugleakageIfthesparkplugleakage,the"hangingfire"methodforemergencytreatment.Thewirefromthesparkplugisremoved,thewireandthesparkplugter
