P204C Isilinganiso esiphansi sesekethe lokunciphisa inzwa lokucindezela

P204C Isilinganiso esiphansi sesekethe lokunciphisa inzwa lokucindezela

Idatha ye-OBD-II DTC

I-Reductant Pressure Sensor Circuit Ephansi

Kusho ukuthini lokhu?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) iyikhodi yokudlulisela ejwayelekile futhi isebenza ezimotweni eziningi ze-OBD-II (1996 nezintsha). Lokhu kungafaka, kepha akukhawulelwe, ezimotweni ezisuka kwaDodge, Ram, VW, Audi, GMC, BMW, Mercedes-Benz, Ford, Chevrolet, njll. nokudluliswa. ukumiswa.

Ikhodi ye-P204C egciniwe isho ukuthi imodyuli yokulawula amandla we-powertrain (PCM) ithole i-voltage enganele kwisekethe yokunciphisa ingcindezi. Le khodi ikhonjiswa kuphela ezimotweni ezinenjini ehlanzekile kadizili.

Uhlelo lwe-catalyst lubhekele ukunciphisa (ikakhulukazi) konke ukukhishwa kwe-exhaust, yize ezinye izinhlelo zokusebenza nazo zifakwe isicupho se-NOx.

Izinhlelo ze-Exhaust Gas Recirculation (EGR) zithatha esinye isinyathelo ekwehliseni ukukhishwa kwe-NOx. Kodwa-ke, izinjini zikadizili zikanamuhla ezinkulu nezinamandla kakhulu azikwazi ukuhlangabezana nezindinganiso eziqinile ze-federal (US) zokukhishwa ngohlelo lwe-EGR nje, isihlungi se-particulate / catalytic converter, kanye noxhaka lwe-NOx. Ngalesi sizathu, kusungulwe izinhlelo ezikhethiwe zokunciphisa (i-SCR).

Izinhlelo ze-SCR zifaka ukwakheka okunganciphisi noma i-Diesel Exhaust Fluid (DEF) kumagesi aqeda phezulu enhla yesihlungi sezinhlayiyana, isicupho se-NOx kanye / noma isiguquli se-catalytic nge-reductant injection valve (solenoid). Umjovo onikezwe isikhathi se-DEF uphakamisa izinga lokushisa kwento yokuhlunga futhi uyivumele ukuthi isebenze kahle. Inweba impilo yensiza yezinto zokuhlunga futhi isiza ekwehliseni ukukhishwa kwamagesi ayingozi wokukhipha emkhathini. Uhlelo lonke lwe-SCR lulawulwa futhi luqashwe yi-PCM noma isilawuli esizimele (esisebenzisana ne-PCM). Kunoma ikuphi, isilawuli sihlola izinzwa ze-O2, NOx nezokushisa kwegesi (kanye nokunye okufakwayo) ukuthola isikhathi esifanele somjovo we-DEF (owehlisayo). Umjovo we-Precision DEF uyadingeka ukugcina ukushisa kwegesi okukhipha ngaphakathi kwemingcele eyamukelekayo nokwandisa ukuhlunga kokungcola.

Iphampu yokunciphisa / yokuvuselela isetshenziselwa ukucindezela i-DEF ohlelweni lokunciphisa uketshezi lokusetshenziswa lapho kudingeka. I-PCM ihlola amandla empompo okuhlinzeka ngokushintshashintsha okuqhubekayo namaphesenti wokulayisha. I-PCM ibuye ibheke inzwa eyodwa noma ngaphezulu yengcindezi ohlelweni lokuhlinzeka ngokunciphisa ukuthola ukuthi kukhona yini ukuvuza kuhlelo.

Uma i-PCM ithola izinga lamandla wesekethe lokunciphisa izinzwa lokushisa elingaphansi kwemingcele eyamukelekayo, ikhodi ye-P204C izogcinwa futhi isibani sesikhombisi esingasebenzi kahle (MIL) singakhanyisa. I-MIL ingadinga imijikelezo eminingi yokushisa (ngokuhluleka) ukukhanyisa.

Isibonelo setangi lokwehlisa i-ejenti DEF:

Buyini ubunzima bale DTC?

Ikhodi egciniwe ye-P204C kufanele iphathwe ngokungathi sína futhi ilungiswe ngokushesha okukhulu. Uhlelo lwe-SCR lungakhubazeka ngenxa yalokhu. Ukulimala kweCatalyst kungenzeka uma izimo ezibe nomthelela ekuphikeleni kwekhodi zingalungiswa ngesikhathi esifanele.

Yiziphi ezinye zezimpawu zekhodi?

Izimpawu zekhodi yenkinga ye-P204C zingafaka:

• Ukwehla kwamandla kaphethiloli
• Intuthu emnyama eyeqile ephuma ekuqothulweni kwezimoto
• Ukunciphisa ukusebenza kwenjini
• Amanye amakhodi ahlobene ne-SCR

Yiziphi ezinye zezimbangela ezivamile zekhodi?

Izizathu zale khodi zingabandakanya:

• Ukunciphisa inzwa yengcindezi yomenzeli kunesici
• Isifunda esivulekile noma esifushane esifundeni ohlelweni lokunciphisa ingcindezi
• Isilawuli se-SCR / PCM esingalungile noma iphutha lohlelo

Yiziphi ezinye zezinyathelo zokuxazulula inkinga i-P204C?

Ukuthola ikhodi ye-P204C, uzodinga isithwebuli sokuxilonga, i-digital volt / ohmmeter (i-DVOM), nomthombo wolwazi oluqondene nemoto oluthile.

Ungasebenzisa umthombo wolwazi lwemoto yakho ukuthola i-Technical Service Bulletin (TSB) efana nonyaka wemoto yakho, ukwakheka kwayo kanye nemodeli yakho; kanye nokususwa kwenjini, amakhodi agciniwe nezimpawu ezitholakele. Uma uyithola, ingahlinzeka ngemininingwane ewusizo yokuxilonga.

Sebenzisa isithwebuli (esixhunywe kusokhethi yokuxilonga yemoto) ukuthola wonke amakhodi agciniwe kanye nedatha yozimele efriziwe. Kunconywa ukuthi ubhale phansi lolu lwazi ngaphambi kokususa amakhodi bese uhlola ukushayela imoto kuze kube yilapho i-PCM ingena kumodi elungele noma ikhodi isuliwe.

Uma i-PCM ingena kumodi elungile ngalesi sikhathi, ikhodi iphakathi futhi ingaba nzima kakhulu ukuxilonga. Kulokhu, izimo ezibe nomthelela ekugcineni ikhodi zingadinga ukuba zimbi kakhulu ngaphambi kokuba kutholakale ukuxilongwa okunembile.

Uma ikhodi isethwa kabusha ngokushesha, isinyathelo esilandelayo sokuxilonga sizodinga ukuthi useshe umthombo wolwazi lwemoto yakho ukuthola imidwebo yama-block diagnostic, ama-pinout, ama-faceplates okuxhuma, nezinqubo / imininingwane yokuhlolwa kwengxenye.

Isinyathelo 1

Sebenzisa i-DVOM ukuhlola inzwa yokunciphisa ingcindezi ngokuya ngemininingwane yomkhiqizi. Izinto ezingaphumeleli ukuhlolwa ngaphakathi kwemingcele ephezulu evunyelwe kufanele zithathwe njengezinephutha.

Isinyathelo 2

Uma ingcindezi yangempela yohlelo lokunciphisa ingaphakathi kokucacisiwe, ikhodi ye-P204C igcinwa futhi i-transducer okukhulunywa ngayo iyasebenza, sebenzisa i-DVOM ukuhlola amasekethe wokufaka nawokukhipha phakathi kwe-pressure transducer kanye nesilawuli se-PCM / SCR. Nqamula bonke abalawuli ngaphambi kokusebenzisa i-DVOM ukuhlola.

• Amakhodi ezinzwa ezincishisayo ancishiselwa ukupompa uhlelo olunciphisayo oluvuza ngaphakathi, kepha qedela ukuxilongwa.

Izingxoxo ezihlobene ze-DTC

• Okwamanje azikho izihloko ezihlobene ezinkundleni zethu. Thumela isihloko esisha esithangamini manje.

Udinga usizo olwengeziwe ngekhodi le-P204C?

Uma usadinga usizo nge-DTC P204C, thumela umbuzo kumazwana angezansi kwalesi sihloko.

QAPHELA. Lolu lwazi lunikezwa ngenhloso yokwaziswa kuphela. Akuhloselwe ukuthi isetshenziswe njengesincomo sokulungisa futhi asinacala nganoma yisiphi isenzo osithathayo kunoma iyiphi imoto. Yonke imininingwane ekulesi siza ivikelwe yi-copyright.