P20C8 Reductant Heater D Kudzora Circuit Yakakwira Signal

P20C8 Reductant Heater D Kudzora Circuit Yakakwira Signal

OBD-II DTC Dhata

Inodzora Heater Kudzora Dunhu D, Signal Yakakwira

Izvi zvinorevei?

Iyi Yekuongorora Dambudziko Kodhi (DTC) ndeye yakajairika kodhi yekufambisa uye inoshanda kune mazhinji OBD-II dhiziri mota (1996 uye nyowani). Izvi zvinogona kusanganisira, asi hazvingogumiri ku, Ford, Mercedes Benz, Sprinter, Audi, Ram, Chevrolet, Dodge, BMW, GMC, nezvimwe. Kunyangwe hazvo zvakasarudzika, matanho chaiwo ekugadzirisa anogona kusiyana zvichienderana nemhando yegore, mhando, hutachiwana mamodheru uye kumisikidza. ...

Kodhi yakachengetwa P20C8 zvinoreva kuti iyo powertrain control module (PCM) yaona kuwanda kwemhepo mudunhu rekutonga kweiyo inboard reductant heater, inoratidzwa netsamba D. Iri zita rinoshandiswa panoshandiswa akawanda mahedhiyo anodzora, ndapota tarisa kune yakanangana mota . workshop bhuku kuti uone kuti ndeipi D cheni yakakodzera kune yako application.

Iyo catalyst system inoitisa kudzikisira (kunyanya) mamwe ese emafesi emhepo, kunyangwe mamwe mashandisirwo akave akashongedzerwa neNox musungo.

Exhaust Gesi Kutenderera (EGR) masisitimu anotora rimwe danho mukuderedza NOx emissions. Nekudaro, yanhasi makuru, enjini dzedhiziri dzine simba kwazvo hadzigone kusangana neyakaomarara federal (US) emission zviyero neEGR chete, DPF / chinogadzirisa chinogadziriswa, uye NOx musungo. Neichi chikonzero, masarudzo akasarudzika ekuderedza (SCR) akagadzirwa.

MaSCR masisitimu anopinza inodzora mumiririri wemubatanidzwa kana Dizisi Exhaust Fluid (DEF) mukati memhepo yekumusoro inokwira kumusoro kweiyo firita firita uye / kana chinogadzirisa chinoshandura. Iyo chaiyo yakaverengerwa DEF jekiseni inokwidza tembiricha yechinhu chesefa uye ichiitendera kuti ishande zvakanyanya. Izvi zvinowedzera hupenyu hwebasa rechinhu chesefa uye zvinobatsira kudzikisira kuburitswa kwemagasi ekukuvadza anokuvadza mumhepo.

Iyo yese SCS system inoongororwa uye inodzorwa nePCM kana inomira-yega mutyairi (iyo inobatana nePCM). Chero zvazvingaitika, mutungamiriri anotarisa iyo O2, NOx uye yekupedza gasi tembiricha sensors (pamwe nezvimwe zvigadzirwa) kuona nguva yakakodzera yeiyo DEF (inoderedza) jekiseni. Precision DEF jekiseni inodiwa kuchengetedza iyo yekuzora gasi tembiricha mukati meyakagamuchirwa parameter uye kugadzirisa iyo filtration yezvinosvibisa.

Kuderedza zvinoshandiswa mumiririri zvinopisa zvinoshandiswa kudzivirira injini yedhiziri kupedza chiutsi kubva kuchando patembiricha yakanyanyisa. Aya mahedzi anowanzo kuwanikwa munzvimbo yeDEF uye / kana mune hosipaipi (s) yekudzikisa mumiririri wemuromo.

Kana iyo PCM ikaona kuwanda kwemhepo mudunhu redhiraivha redhiraivha D, P20C8 kodhi inochengetwa uye mwenje wekusashanda ungavhenekera.

Kuderedza mumiririri wemidziyo kunogona kuwanikwa mukati meDEF tangi (muenzaniso unoratidzwa pano):

Chii chakakomba cheiyi DTC?

Iyo yakachengetwa P20C8 kodhi inofanirwa kurapwa seyakakomba uye inogadziriswa nekukurumidza sezvazvinogona. Iyo SCR system inogona kuve yakaremara nekuda kweizvi. Catalyst kukuvara kunogona kuitika kana iwo mamiriro akakonzera kuenderera kwekodhi isina kugadziriswa nenzira yakakodzera.

Ndezvipi zvimwe zvezviratidzo zvekodhi?

Zviratidzo zveP20C8 kodhi yekutambudzika inogona kusanganisira:

• Yakaderedzwa injini kuita
• Hutsi hutema hwakawandisa kubva mumotokari chiutsi
• Yakadzikira mafuta kunyatsoshanda
• Mamwe macode ane chekuita neCSC

Ndezvipi zvimwe zvezvikonzero zvinowanzoitika zveiyo kodhi?

Zvikonzero zveiyi kodhi zvinogona kusanganisira:

• Yakashata inoderedza hita
• Vhura kana ipfupi dunhu mune inoderedza mumiririri hita kudzora wedunhu
• Kuderedza mumiriri tembiricha sensor isina kukwana
• Yakashata SCR / PCM controller kana programming kukanganisa

Ndeapi mamwe matanho ekutambudza iyo P20C8?

Iwe unozoda kuwana kune yekuongorora scanner, digital volt / ohmmeter (DVOM), uye mota-yakatarwa yekuongorora ruzivo sosi yekuongorora iyo P20C8 kodhi.

Kana iwe uchikwanisa kuwana technical Service Bulletin (TSB) inoenderana negore rekugadzira, gadzira uye modhi yemota; pamwe neinjini yekufambisa, yakachengetwa kodhi / makodhi uye zviratidzo zvakawanikwa, inogona kupa ruzivo rwakakosha rwekuongorora.

Iwe unofanirwa kutanga kuongororwa pamwe nekuona nekuona harnesses uye zvinongedzo zveiyo inoderedza hita system. Yatsva kana yakakuvara wiring uye / kana zvinongedzo zvinofanirwa kugadziriswa kana kutsiviwa usati waenderera.

Wobva wabatanidza iyo scanner kune iyo mota yekuongorora socket uye unotora ese akachengetwa makodhi uye inoenderana kuomesa furemu data. Nyora chinyorwa cheruzivo urwu usati wabvisa makodhi uye bvunzo kutyaira mota kusvikira iyo PCM yapinda yakagadzirira modhi kana kodhi yadzoswazve.

Iyo kodhi iri yepakati uye inogona kuve yakanyanya kuoma kuongorora (parizvino) kana PCM ikaenda yakagadzirira modhi. Muchiitiko ichi, mamiriro akakonzera kuchengetedzwa kwekodhi angangoda kuwedzera kusati kwanyatso kuongororwa.

Kana iyo kodhi ikatangazve, tsvaga yako mota ruzivo sosi yekuongorora ekuvharisa madhayagiramu, chinongedzo pinouts, chinongedzo kumeso kutarira, uye chikamu chekuyedza maitiro uye maratidziro. Iwe uchazoda ruzivo urwu kuti upedze nhanho inotevera mune yako kuongororwa.

Shandisa DVOM kuti utarise magetsi eSCR / control system. Tarisa mafiyasi nedunhu rakatakudzwa kuti usazorwara zvisizvo. Kana simba rakakodzera (bhatiri voltage) uye maseketi epasi akawanikwa, shandisa iyo scanner kumisikidza iyo inoderedza hita / s uye tarisa iyo control wedunhu kuburitsa voltage. Kana iyo voltage isingakwani, fungidzira mutungamiriri akaremara kana ane programming kukanganisa.

Kana iyo inobuda magetsi wedunhu iri mukati mezvakatemwa, shandisa iyo DVOM kuyedza iyo inoderedza mumiriri kudziisa chinhu chiri mubvunzo. Kana hita ikasasangana nemagadzirirwo emugadziri, zvinofungidzirwa kuti yatadza.

• Kana kodhi iyi ikafumurwa mune inodziya mamiriro ekunze, fungidzira kuti chikanganiso chehurongwa chakaitika.

Inoenderana DTC hurukuro

• Ikozvino hapana misoro inoenderana mumaforamu edu. Tumira chinyorwa chitsva paforum izvozvi.

Unoda rumwe rubatsiro neiyo P20C8 kodhi?

Kana iwe uchiri kuda rubatsiro neDTC P20C8, tumira mubvunzo mune zvakataurwa pazasi peichi chinyorwa.

ONA. Ruzivo urwu rwunopihwa ruzivo rwezvinangwa chete. Izvo hazvina kuitirwa kuti ishandiswe sekurudziro yekugadzirisa uye isu hatisi ivo vane basa kune chero chiito iwe chaunotora pane chero mota. Zvese ruzivo pane ino saiti zvinodzivirirwa ne copyright.