Isifunda sesethenjwa senzwa ye-P0642 ephansi

Ikhodi Yenkinga ye-OBD-II - P0642 - Ishidi Ledatha

I-P0642 - I-voltage ephansi kumjikelezo we-voltage yereferensi yenzwa "A".

Ikhodi P0642 ikhombisa ukuthi "A" isekethe kagesi yereferensi yenzwa iphansi kakhulu uma iqhathaniswa nezicaciso zomkhiqizi njengoba kutholwe imojuli yokulawula ukudlulisa noma i-PCM.

Isho ukuthini ikhodi yenkinga P0642?

Le Khodi Yezinkinga Zokuxilonga (i-DTC) yikhodi yokudlulisela ejwayelekile, okusho ukuthi isebenza ezimotweni ezihlomele i-OBD-II. Yize kuvamile emvelweni, izinyathelo ezithile zokulungisa zingahluka ngokuya ngohlobo lomkhiqizo / imodeli.

Uma imoto yakho ye-OBD II ine-P0642 egciniwe, kusho ukuthi imodyuli yokulawula amandla we-powertrain (PCM) ithole isignali yamandla asezingeni eliphansi yenzwa ethile, ebizwa nge- "A". Inzwa okukhulunywa ngayo imvamisa ihlotshaniswa nokudluliswa okuzenzakalelayo, ikesi lokudlulisa, noma umehluko owodwa.

Ikhodi yenzwa ecaciswe kakhulu icishe ihambisane nale khodi. I-P0642 yengeza ukuthi i-voltage yereferensi yenzwa iphansi. Ukuze unqume indawo (kanye nomsebenzi) wenzwa yemoto ethile, thintana nomthombo wolwazi wemoto owethembekile (Yonke Idatha ye-DIY iyinketho enhle). Ngisola ukuthi kwenzeke iphutha lohlelo lwe-PCM uma i-P0642 igcinwa ngokuhlukile. Uzodinga ukuxilonga futhi ulungise noma imaphi amanye amakhodi enzwa ngaphambi kokuhlonza nokulungisa i-P0642, kodwa qaphela i-voltage yereferensi ephansi.

Inzwa okukhulunywa ngayo ihlinzekwa nge-voltage voltage (imvamisa volts ezinhlanu) nge switchable (enikwe amandla lapho iswitshi ivuliwe). Kuzobuye kube nesiginali yomhlabathi. Inzwa izoba ukumelana okuguqukayo noma uhlobo lwe-electromagnetic futhi iqeda isekethe. Ukumelana kwenzwa kufanele kwehle ngokucindezela okwandayo, izinga lokushisa noma isivinini, futhi ngokufanayo. Njengoba ukumelana kwenzwa kushintsha (kuya ngezimo), kunikeza i-PCM isignali yamandla wokufaka.

Uma isiginali yamandla wokufaka etholwe yi-PCM ingaphansi komkhawulo ohleliwe, kuzogcinwa i-P0642. Isibani sesibonisi esingasebenzi kahle (MIL) naso singakhanyiswa. Ezinye izimoto zizodinga imijikelezo eminingi yokushayela (uma kwenzeka kwehluleka) ukuze isibani sesixwayiso sikhanye. Vumela i-PCM ingene kumodi yokulungela ngaphambi kokucabanga ukuthi ukulungiswa kuphumelele. Vele ususe ikhodi ngemuva kokulungiswa bese ushayela njengokujwayelekile. Uma i-PCM ingena kumodi yokulungela, ukulungiswa kuphumelele. Uma ikhodi isuliwe, i-PCM ngeke ingene kumodi yokulinda futhi uyazi ukuthi iphutha lisekhona.

Ubunzima nezimpawu

Ubunzima be-P0642 egciniwe buxhomeke ekutheni isifunda senzwa sisesimeni samandla aphansi. Amanye amakhodi agciniwe kufanele abuyekezwe ngaphambi kokuba kwenziwe ukuzimisela okukhulu.

Ngaphezu kokuba nekhodi ye-P0642 kumemori ye-PCM, imoto ingase ingaqali. Ukuqala kungase kube nzima futhi injini ingase isebenze kabi. Ukusebenza kahle kukaphethiloli kungase kwehle, injini ingase ingashi, futhi umshayeli angase abone ukuncipha okujwayelekile kwamandla enjini. Ukukhanya kwe-Check Engine kuzokhanya, kodwa lokhu kungathatha imijikelezo yokushayela eminingana.

Izimpawu zekhodi ye-P0642 zingafaka:

• Ukwehluleka ukushintsha ukudluliswa phakathi kwezinhlobo zezemidlalo nezomnotho
• Ukungasebenzi kahle kwamagiya
• Ukubambezeleka (noma ukuntuleka) kokuvula ukudluliswa
• Ukwehluleka kokudlulisa ukushintsha phakathi kwe-XNUMXWD ne-XNUMXWD
• Ukwehluleka kwecala lokudlulisa ukusuka kokuphansi kuya kugiya eliphezulu
• Ukuntuleka kokufakwa komehluko wangaphambili
• Ukuntuleka kokuzibandakanya kwehabhu langaphambili
• I-speedometer / i-odometer engalungile noma engasebenzi

Izimbangela zephutha P0642

Ezimweni eziningi, ikhodi P0642 ibangelwa ukufushane noma ukuvuleka kuzintambo noma izixhumi phakathi kwamamojula okulawula asekelayo noma kusuka kumamojula okulawula kuya ku-PCM. Ezinye izizathu zingabandakanya:

• Imojula yokulawula injini engasebenzi (ECM)
• Isekhethi evulekile noma emfushane yezingxenye zikagesi izinzwa zenjini
• Kuvuliwe noma kufushane kumahhanisi e-ECM
• Umjikelezo omfushane wenzwa kuketango elingu-5-volt
• Izintambo zaphansi ezixegayo noma ezinqanyuliwe kusekethe yokufaka ye-PCM
• Amaphutha angaphakathi ku-PCM
• Inzwa engalungile
• Amafyuzi anamaphutha noma afuthwe kanye / noma amafusizi
• Ukudluliswa kwamandla wesistimu okungalungile
• Isifunda esivulekile kanye / noma izixhumi

Izinqubo zokuxilonga nokulungisa

Ukuthola ikhodi egciniwe ye-P0642 kuzodinga isithwebuli sokuxilonga, i-digital volt / ohmmeter (i-DVOM), nomthombo othembekile wolwazi lwemoto (njenge-All Data DIY). I-oscilloscope ephathekayo nayo ingasiza ekwenzeni ukuxilongwa.

Okokuqala, thintana nomthombo wolwazi lwemoto yakho ukuthola indawo nokusebenza kwenzwa okukhulunywa ngayo njengoba icaciselwe imoto yakho. Hlola ngokubonakalayo amahanisi nezixhumi ezihambisana nohlelo lwenzwa. Lungisa noma shintsha izintambo ezilimele noma ezishisiwe, izixhumi, nezinto ezidingekayo. Okwesibili, xhuma isithwebuli esikhumulweni semoto sokuxilonga bese ubuyisa wonke ama-DTC agciniwe bese uqandisa idatha yozimele. Bhala amanothi wamakhodi kanye nokugcinwa kwawo ngendlela egcinwe ngayo kanye nanoma iyiphi idatha yozimele yokuqandisa, njengoba lolu lwazi lungasiza uma ikhodi kuvela ukuthi iba phakathi. Manje ungaqhubeka futhi uhlanze ikhodi; bese uhlola ukushayela imoto ukuqinisekisa ukuthi isethwe kabusha ngokushesha.

Uma ikhodi isetha kabusha ngokushesha, sebenzisa i-DVOM ukuhlola amandla wesethenjwa namasiginali womhlaba kunzwa okukhulunywa ngayo. Imvamisa ubungalindela ukuthola ama-volts amahlanu nomhlabathi kusixhumi senzwa.

Qhubeka nokuhlola ukumelana kwenzwa nokuqhubeka kwamazinga uma amasiginali wamandla naphansi akhona kusixhumi senzwa. Thola imininingwane yokuhlolwa emthonjeni wolwazi lwemoto yakho bese uqhathanisa imiphumela yakho yangempela kubo. Izinzwa ezingahlangabezani nalezi zibaluli kufanele zishintshwe.

Nqamula zonke izilawuli ezihlobene kusuka kumasekethe wesistimu ngaphambi kokuhlola ukumelana ne-DVOM. Ukwehluleka ukwenza kanjalo kungalimaza i-PCM. Uma i-voltage yesethenjwa iphansi (enzwa), sebenzisa i-DVOM ukuhlola ukumelana kwesifunda nokuqhubeka phakathi kwenzwa ne-PCM. Shintsha amasekethe avulekile noma afushane lapho kudingeka. Uma inzwa okukhulunywa ngayo iyisistimu ye-electromagnetic ephindayo, sebenzisa i-oscilloscope ukulandelela idatha ngesikhathi sangempela. Gxila ekuphahlazekeni nasezikhungweni ezivulekile ngokuphelele.

Amanothi wokuxilonga angeziwe:

• Lolu hlobo lwekhodi luvame ukuhlinzekwa njengokusekelwa kwekhodi ethile.
• Ikhodi egciniwe engu-P0642 imvamisa ihlotshaniswa nokudluliswa.

Amaphutha Avamile Lapho Uhlonza Ikhodi P0642

Ezimweni eziningi, lapho inkinga ikukuxhumana phakathi kwamamojula okulawula, amanye amakhodi avela ku-PCM. Lokhu ngokuvamile kuwumphumela wokuxhumana okubi okubangela ikhodi P0642 futhi empeleni akudingi ukulungiswa. Nokho, lezi zinkinga ngokuvamile zixilongwa futhi zilungiswe kuqala, okungaxazululi inkinga ewumsuka.

Ibucayi kangakanani ikhodi ye-P0642?

Uma isithwebuli se-OBD-II sithola ikhodi engu-P0642, kubalulekile ukuthi imoto ihlolwe futhi ilungiswe ngokushesha. Inkinga phakathi kwamamojula okulawula izoba nomthelela ekuphathweni kwemoto futhi inciphise ukusebenza kwenjini kukonke. Ukuze uqiniseke ukuthi imoto ihlala isesimweni sokusebenza, kubalulekile ukulungisa inkinga ebangela ikhodi ye-P0642 ngokushesha.

Yiziphi izilungiso ezingalungisa ikhodi P0642?

Ezimweni eziningi, imbangela yekhodi P0642 izolungiswa ngesikhathi sokuxilongwa kokuqala, njengoba inkinga engenzeka kakhulu ngale khodi egcinwe yizingxenye zikagesi. Nokho, kunezinye izinhlobo zokulungisa ezingase zidingeke ukuze kuxazululwe inkinga ewumsuka. Lokhu kubandakanya:

• Ukushintsha imojuli yokulawula injini ehlulekile (ECM).
• Ukushintsha noma ukulungisa ihhanisi le-ECM elivuliwe noma elifushane.
• Ukushintsha inzwa emfishane ngesekhethi engu-5-volt.
• Ukushintsha i-PCM ngezimpawu zezinkinga zangaphakathi.
• Ukushintsha amamojula okulawula anephutha.

Uma noma yimaphi amamojula okulawula ashintshwayo, amamojula amasha kuzodingeka ahlelwe kabusha. Uma umakhenikha eqa lesi sinyathelo, kungenzeka ukuthi amakhodi amaningi azogcinwa emijikelezweni embalwa yokushayela elandelayo. I-PCM ehlelwe ngokungalungile ingaholela ekutheni imoto ingaqalisi.

Kubalulekile futhi ukuthi ikhodi P0642 isulwe futhi isistimu ihlolwe kabusha ngemva kwakho konke ukulungiswa okungenzeka. Le nqubo inciphisa umsuka wenkinga kuze kube yilapho kutholakala ukulungiswa okufanele futhi kwenziwe.

P0642 ✅ IZIMPAWU NESIXAZULULO ESIYILUNGILE ✅ - Ikhodi Yephutha ye-OBD2

Udinga usizo olwengeziwe ngekhodi le-p0642?

Uma usadinga usizo nge-DTC P0642, 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.