P20BD Reductant Heater Control Circuit B / Open

P20BD Reductant Heater Control Circuit B / Open

Mapepala a OBD-II DTC

Wochepetsa chowongolera chowongolera B / otseguka

Kodi izi zikutanthauzanji?

Izi Diagnostic Trouble Code (DTC) ndi njira yololera ndipo imagwira ntchito pamagalimoto ambiri a OBD-II (1996 ndi atsopano). Izi zitha kuphatikizira, koma sizingokhala ku, Ford, Mercedes Benz, Sprinter, Audi, Ram, Chevrolet, Dodge, BMW, GMC, ndi zina zambiri. , Mitundu yotumizira ndi mawonekedwe. ...

Khodi yosungidwa P20BD imatanthawuza kuti gawo loyendetsa mphamvu yamagetsi (PCM) silinazindikire magetsi pamagawo olamulira a chowotcha chochepetsera chomwe chikuwonetsedwa ndi kalata B. Kutchulidwaku kumagwiritsidwa ntchito pakagwiritsidwa ntchito ma heater angapo, chonde onani galimoto. buku lothandizira kuti mudziwe kuti unyolo wa B ndi uti woyenera kuti mugwiritse ntchito.

Makina othandizira amathandizira kuchepetsa (makamaka) zina zonse zotulutsa mpweya, ngakhale mapulogalamu ena amakhalanso ndi msampha wa NOx.

Machitidwe a Exhaust Gas Recirculation (EGR) amatenga gawo lina pochepetsa mpweya wa NOx. Komabe, mainjini akuluakulu amakono, amphamvu kwambiri a dizilo sangakwaniritse miyezo yolimba yochokera ku feduro (US) yokhala ndi dongosolo la EGR, chosakanizira chosinthira, ndi chopezera cha NOx. Pachifukwa ichi, makina osankha othandizira othandizira (SCR) apangidwa.

Machitidwe a SCR amalowetsa mankhwala ochepetsa kapena Dizilo Exhaust Fluid (DEF) m'mafuta otulutsira kumtunda kwa fyuluta yamagulu ndi / kapena chosinthira chothandizira. Jekeseni woyesedwa bwino wa DEF umakweza kutentha kwa fyuluta ndikuilola kuti igwire bwino ntchito. Izi zimawonjezera nthawi yothandizira pa fyuluta ndikuthandizira kuchepetsa mpweya wa utsi woipa mumlengalenga.

Dongosolo lonse la SCS limayang'aniridwa ndikuwongoleredwa ndi PCM kapena wolamulira payekha (yemwe amagwirizana ndi PCM). Mulimonsemo, wowongolera amayang'anira O2, NOx ndi kutulutsa masensa otenthetsera mpweya (komanso zolowetsa zina) kuti adziwe nthawi yoyenera ya jakisoni wa DEF (reductant). Mwatsatanetsatane jekeseni DEF chofunika kusunga utsi mpweya kutentha mkati magawo zovomerezeka ndi konza moyenera kusefera wa zoipitsa.

Kuchepetsa zotenthetsera zomwe zimagwiritsidwa ntchito popewera ma injini ya dizilo kuti isaziziritse ndi kuzizira kwambiri. Izi zotenthetsera nthawi zambiri zimakhala mu nkhokwe ya DEF ndi / kapena mu payipi (s) yamphuno yochepetsera.

PCM ikazindikira kusowa kwamagetsi mu gawo loyendetsa batire lochepetsa B, nambala ya P20BD imasungidwa ndipo nyali yowunikira imatha kuwunikira.

Kuchepetsa zotenthetsera zimatha kupezeka mkati mwa thanki la DEF (chitsanzo chikuwonetsedwa apa):

Kodi kuuma kwa DTC kumeneku ndi kotani?

Khodi yosungidwa ya P20BD iyenera kuchitidwa mozama ndipo iyenera kuthetsedwa mwachangu. Makina a SCR atha kukhala olumala chifukwa cha izi. Kuwonongeka kwa chothandizira kumatha kuchitika ngati zinthu zomwe zapangitsa kuti codeyo isapitirire sizikukonzedwa munthawi yake.

Kodi zina mwazizindikiro za code ndi ziti?

Zizindikiro za vuto la P20BD zitha kuphatikizira izi:

• Kuchepetsa ntchito ya injini
• Utsi wakuda kwambiri wakutha kwa galimoto
• Kuchepetsa mafuta
• Ma code ena okhudzana ndi SCR

Kodi zina mwazomwe zimayambitsa codezi ndi ziti?

Zifukwa za code iyi zitha kuphatikizira izi:

• Kutenthetsera koyipa
• Tsegulani kapena zazifupi mdera lochepetserako chotenthetsera
• Kuchepetsa kachipangizo kachipangizo kutentha zosalongosoka
• Wolamulira woyipa wa SCR / PCM kapena pulogalamu yolakwika

Kodi ndi njira ziti zina zothetsera P20BD?

Muyenera kupeza makina osakira matenda, volt digital / ohmmeter (DVOM), ndi gwero lazidziwitso zodziwitsa anthu za galimoto kuti mupeze nambala ya P20BD.

Ngati mungapeze Technical Service Bulletin (TSB) yofanana ndi chaka chopanga, pangani ndi kupanga galimotoyo; komanso kusamutsidwa kwa injini, ma code / ma code osungidwa ndi zizindikiritso zomwe zitha kupezeka, zitha kukupatsirani chidziwitso chothandiza pakuzindikira.

Muyenera kudziwa kuti mwayang'ana ma harnesses ndi zolumikizira zamagetsi zotsekemera. Mawaya owotcha kapena owonongeka ndi / kapena zolumikizira ayenera kukonzedwa kapena kusinthidwa musanapite.

Kenako gwirizanitsani chojambulira ndi soketi yoyesera galimoto ndikutenga ma code onse osungidwa ndi chimango chofanana. Lembani zambirizi musanachotsere ma code ndikuyesa kuyendetsa galimotoyo mpaka PCM itayamba kukonzekera kapena nambala yake yasinthidwa.

Makhalidwewa ndi apakatikati ndipo akhoza kukhala ovuta kwambiri kuzindikira (pakali pano) ngati PCM itayamba kukonzekera. Poterepa, zinthu zomwe zidapangitsa kuti codeyo isungidwe zitha kufunikira kukulirakulira asanadziwe bwinobwino.

Ngati nambala yanu ikukhazikitsanso, fufuzani gwero lazidziwitso zamagalimoto anu kuti mupeze zojambula zoyeserera, zolumikizira zolumikizira, mawonekedwe olumikizira nkhope, ndi njira zoyeserera magawo ndi malongosoledwe. Mudzafunika mfundoyi kuti mutsirize gawo lotsatira pakupezeka kwanu.

Gwiritsani ntchito DVOM kuti muwone momwe magetsi a SCR / magetsi alili. Onetsetsani mafyuzi okhala ndi dera lolemera kuti mupewe kuzindikira molakwika. Ngati magetsi oyenera (batri yamagetsi) ndi ma circuits apansi apezeka, gwiritsani ntchito sikani kuti muchotse chowotcha chochepetsera ndikuwona magetsi oyendetsera dera. Ngati voteji sakukwanira, ganizirani kuti wowongolera ali ndi vuto kapena ali ndi pulogalamu yolakwika.

Ngati gawo lamagetsi akutuluka mkati mwazomwe mukugwiritsa ntchito, gwiritsani ntchito DVOM kuyesa chochepetsera chomwe chimafunsidwa. Ngati chowotcha sichikwaniritsa zomwe wopanga amapanga, akukayikira kuti yalephera.

• Ngati code iyi ikuwululidwa nyengo yotentha, ganizirani kuti pulogalamu yabvuta.

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Mukufuna thandizo lina ndi nambala yanu ya P20BD?

Ngati mukufunabe thandizo ndi DTC P20BD, lembani funso mu ndemanga pansipa pamutuwu.

ZINDIKIRANI. Izi zimaperekedwa kuti zidziwitse zokha. Sikuti tizigwiritsa ntchito ngati malingaliro okonzanso ndipo sitili ndi udindo pazomwe mungachite pagalimoto iliyonse. Zomwe zili patsamba lino ndizotetezedwa ndi zovomerezeka.