U029D Ukuxhumana Okulahlekile NgeNoX Sensor A

U029D Ukuxhumana Okulahlekile NgeNoX Sensor A

Idatha ye-OBD-II DTC

Ukuxhumana Okulahlekile Nge-NOX Sensor A

Kusho ukuthini lokhu?

Le yikhodi yenkinga yokuxilongwa yohlelo lokuxhumana ejwayelekile esebenza kokuningi nokwenziwa kwezimoto ze-OBD-II.

Le khodi isho ukuthi inzwa ye-NOX A (NOXS-A) namanye amamojula wokulawula emotweni axhumani. Izifunda ezijwayele ukusetshenziswa kakhulu kwezokuxhumana zaziwa ngokuthi yi-Controller Area Bus communication, noma nje ibhasi le-CAN.

Amamojula axhumana nomunye ngenethiwekhi, njengenethiwekhi onayo ekhaya noma emsebenzini. Abakhiqizi bezimoto basebenzisa amasistimu amanethiwekhi amaningi. Kuze kube unyaka we-2004, izindlela zokuxhumana phakathi kwemodyuli ezivame kakhulu (ezingaphelelisi) kwakuyi-serial interface, noma i-SCI; I-SAE J1850 noma ibhasi le-PCI; kanye neChrysler Collision Detection, noma i-CCD. Uhlelo olujwayeleke kakhulu olusetshenziswe ngemuva kuka-2004 lwaziwa njenge-Controller Area Network ukuxhumana, noma umane ibhasi le-CAN (futhi elisetshenziswe kuze kube ngu-2004 engxenyeni encane yezimoto). Ngaphandle kwale bhasi le-CAN, amamojula wokulawula awakwazi ukuxhumana futhi ithuluzi lakho lokuskena lingathola noma lingatholi ulwazi oluvela emotweni, kuya ngokuthi isiphi isifunda esithintekile.

Inzwa ye-NOX A (NOXS-A) ivame ukufakwa kumbhobho wokukhipha ngemuva kwesiguquli se-SCR catalytic. Ithola okokufaka okuvela ezinhlotsheni ezahlukahlukene, ezinye zazo ezixhumeke ngqo kuyo, futhi iningi lidluliswa ngohlelo lokuxhumana ngamabhasi kusuka kumodyuli we-powertrain control module (PCM). Lokhu kokufaka kuvumela imodyuli ukuxhumana nenzwa ukuqinisekisa ukuthi i-catalyst ibheka i-NOx. Bheka incwadi eqondene nemoto ukuthola ukuthi iyiphi imodyuli engu- "A" esimweni sakho.

Izinyathelo zokuxazulula inkinga zingahluka ngokuya ngomenzi, uhlobo lohlelo lokuxhumana, inani lezintambo, nemibala yezintambo ezisohlelweni lokuxhumana.

Ukuqina kwekhodi nezimpawu

Ubukhulu kuleli cala buvame ukuba bukhulu njengoba buvimbela i-PCM ekutholeni amazinga okuphuma. Umenzi angahlinzeka nge-workaround uma kwenzeka ukwehluleka okuphelele kwenethiwekhi yezokuxhumana. Ukusebenza kwemoto kuthinteka ukwehluleka kwe-NOXS-A.

Izimpawu zekhodi ye-U029D zingafaka:

• Isibani sesibonakaliso sephutha sivuliwe
• I-NOXS-A ayivuli / ayisebenzi / imodyuli yenzwa ayikhiqizi i-voltage

izizathu

Imvamisa isizathu sokufaka le khodi sithi:

• Vula ku-CAN ibhasi + noma - isekethe
• Mfushane kuya emhlabathini noma emhlabathini kunoma yisiphi isifunda sebhasi le-CAN
• Awekho amandla noma isisekelo se-NOXS-A module
• Akuvamile - imojula yokulawula inephutha

Izinqubo zokuxilonga nokulungisa

Indawo enhle ukuqala KONKE ukuxilongwa ngogesi ukuhlola i-Technical Service Bulletins (TSB) yemoto yakho. Inkinga obhekene nayo ingase yaziwe ngabanye emkhakheni. Ukulungiswa okwaziwayo kungenzeka kukhishwe ngumkhiqizi futhi kungakongela isikhathi nemali ngesikhathi sokuxilongwa.

Kucatshangwa ukuthi umfundi wekhodi uyatholakala kuwe njengamanje, njengoba kungenzeka ukuthi ukwazile ukufinyelela amakhodi kuze kube manje. Bona ukuthi akhona yini amanye ama-DTC ahlobene nokuxhumana kwebhasi noma ibhethri / ukuthungela. Uma kunjalo, kufanele uwahlolisise kuqala, njengoba i-misdiagnosis yaziwa ukuthi iyenzeka uma uthola ikhodi ye-U029D ngaphambi kokuthi noma yimaphi amakhodi ayisisekelo ahlolwe kahle futhi alungiswe.

Uma okuwukuphela kwekhodi oyithola kwamanye amamojula ingu-U029D, zama ukufinyelela i-NOXS-A. Uma ukwazi ukufinyelela amakhodi asuka ku-NOXS-A khona-ke ikhodi ethi U029D iyikhodi yesikhashana noma yememori. Uma i-NOXS-A ingafinyeleleki, ikhodi ethi U029D esethwe ngamanye amamojula iyasebenza futhi inkinga isivele ikhona.

Ukwehluleka okuvame kakhulu ukwehluleka kwesekethe okuholela ekulahlekelweni kwamandla noma phansi kunzwa ye-NOx a.

Bheka wonke amafuyuzi ahambisa imojuli ye-NOXS-A kule moto. Bheka zonke izizathu ze-NOXS-A. Thola amaphuzu okunamathisela phansi emotweni bese uqinisekisa ukuthi lokhu kuxhumana kuhlanzekile futhi kuphephile. Uma kunesidingo, zisuse, thatha ibhulashi elincane le-wire bristle nesisombululo sesoda / samanzi bese uhlanza ngasinye, kokubili isixhumi nendawo lapho sixhuma khona.

Uma kukhona ukulungiswa okwenziwe, sula ama-DTC kuwo wonke amamojula asetha ikhodi kwimemori bese ubona ukuthi usungakwazi yini ukuxhumana nemodyuli ye-NOXS-A. Uma ukuxhumana no-NOXS-A kuyalulama, inkinga kungenzeka ibe yinkinga yefuse / yokuxhuma.

Uma ikhodi ibuya noma ukuxhumana kungasungulwa ngemodyuli, funa ukuxhumana kokuxhumana kwebhasi le-CAN emotweni yakho, ikakhulukazi isixhumi se-NOXS-A, esivame ukufakwa kupayipi lokukhipha ngemuva kwesiguquli se-scr catalytic. Nqamula intambo yebhethri engeyinhle ngaphambi kokunqamula isixhumi ku-NOXS-A. Uma usutholakele, hlola ngokubonakalayo izixhumi nezintambo. Bheka imihuzuko, izikhafu, izintambo eziveziwe, amamaki okushisa, noma ipulasitiki ebunjiwe.

Nqamula izixhumi futhi uhlole ngokucophelela amatheminali (izingxenye zensimbi) ngaphakathi kwezixhumi. Bona ukuthi zibukeka zishisiwe noma zinombala oluhlaza okhombisa ukugqwala. Uma udinga ukuhlanza ama-terminals, sebenzisa i-electric contact cleaner kanye ne-plastic bristle brush. Vumela ukomisa nokufaka igrisi kagesi lapho amatheminali ethinta khona.

Ngaphambi kokuxhuma kabusha izixhumi ku-NOXS-A, yenza lokhu kuhlola okumbalwa kwamandla kagesi. Uzodinga ukufinyelela ku-digital volt/ohmmeter (DVOM). Qiniseka ukuthi i-NOXS-A inamandla nomhlabathi. Finyelela kumdwebo wezintambo futhi unqume ukuthi amandla amakhulu nempahla yaphansi ingena kuphi ku-NOXS-A. Xhuma ibhethri ngaphambi kokuqhubeka ne-NOXS-A isanqanyuliwe. Xhuma intambo ebomvu ye-voltmeter yakho ku-B+ (i-voltage yebhethri) ngayinye efakwe kusixhumi se-NOXS-A kanye nomthofu omnyama we-voltmeter yakho endaweni enhle (uma ungaqiniseki, i-negative yebhethri isebenza njalo). Kufanele ubone ukufundwa kwe-voltage yebhethri. Qiniseka ukuthi unesizathu esihle. Xhuma umthofu obomvu we-voltmeter kuphozithivu yebhethri (B+) kanye nomthofu omnyama kusekethe ngayinye yaphansi. Nakulokhu futhi, kufanele ubone i-voltage yebhethri njalo uma uxhuma. Uma kungenjalo, lungisa amandla noma isekethe yaphansi.

Bese uhlola izifunda ezimbili zokuxhumana. Thola i-CAN C+ (noma i-HSCAN+) kanye ne-CAN C- (noma i-HSCAN - isekethe). Ngentambo emnyama ye-voltmeter exhunywe endaweni ekahle, xhuma intambo ebomvu ku-CAN C+. Uma ukhiye uvuliwe futhi injini icishiwe, kufanele ubone cishe ama-volts angu-2.6 anokuguquguquka okuncane. Bese uxhuma intambo ebomvu ye-voltmeter kusekethe ye-CAN C-. Kufanele ubone cishe ama-volts angu-2.4 ngokuguquguquka okuncane. Abanye abakhiqizi bakhombisa i-CAN C- cishe i-5V kanye nokhiye ozungezayo lapho injini icishiwe. Hlola imininingwane yomkhiqizi wakho.

Uma zonke izivivinyo zidlula futhi ukuxhumana kungakenzeki, noma awukwazanga ukusetha kabusha i-DTC U029D, into kuphela engenziwa ukufuna usizo kuchwepheshe wokuxilonga izimoto oqeqeshiwe, njengoba lokhu kuzobonisa ukwehluleka kwe-NOXS-A. . Iningi lalawa ma-NOXS-A adinga ukuhlelwa noma ukulinganiswa ukuze alingane kahle emotweni.

Izingxoxo ezihlobene ze-DTC

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