P20C8 Reductant Heater D Control Circuit High

Mapepala a OBD-II DTC

Reductant chotenthetsera Control Dera D, Signal High

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 P20C8 imatanthawuza kuti gawo loyendetsa mphamvu yamagetsi (PCM) lazindikira kuphulika kwamayendedwe owongolera a boardboard ochepetsa moto, otchulidwa ndi kalata D. Kutchulidwaku kumagwiritsidwa ntchito pakamagwiritsa ntchito ma heater angapo obwezeretsa, chonde onani galimotoyo . buku lothandizira kuti mudziwe kuti ndi D yanji yoyenera kugwiritsa ntchito yanu.

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 kuti gawo loyendetsa la chowotchera chochepetsera D likuchuluka, pulogalamu ya P20C8 idzasungidwa ndipo nyali yowunikira itha kuwunikira.

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

Kodi kuuma kwa DTC kumeneku ndi kotani?

Khodi yosungidwa ya P20C8 iyenera kuchitidwa mozama ndikukonzanso posachedwa. Makina a SCR atha kukhala olumala chifukwa cha izi. Kuwonongeka kwa chothandizira kumatha kuchitika ngati zinthu zomwe zidapangitsa kuti kulimbikira kwa khodi zisakonzedwe munthawi yake.

Kodi zina mwazizindikiro za code ndi ziti?

Zizindikiro za vuto la P20C8 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 njira zina za P20C8 zamavuto ndi ziti?

Muyenera kupeza makina osakira matenda, volt digital / ohmmeter (DVOM), ndi gwero lodziwitsa anthu zagalimoto kuti mupeze nambala ya P20C8.

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.

Zokambirana zokhudzana ndi DTC

Pakadali pano palibe mitu yofananira m'mabwalo athu. Tumizani mutu watsopano pamsonkhano tsopano.

Mukufuna thandizo lina ndi code P20C8?

Ngati mukufunabe thandizo ndi DTC P20C8, 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.