P0074 Yanayin Sensor Circuit Circuit na Yanayi
Abubuwa
P0074 Yanayin Sensor Circuit Circuit na Yanayi
Bayanan Bayani na OBD-II
Matsalar Yanayin Na'urar Sensor Circuit
Mene ne wannan yake nufi?
Wannan nau'in watsawa / injin DTC galibi ya shafi duk motocin da aka sanye su da OBDII.
Na'urar zazzabi ta yanayi (AAT) tana jujjuya yanayin zazzabi zuwa siginar lantarki zuwa tsarin sarrafa wutar lantarki (PCM). Ana amfani da wannan shigarwar don canza aikin tsarin kwandishan da nuna zafin waje.
PCM yana samun wannan shigarwar kuma mai yiwuwa ƙarin biyu; Shigar da zazzabi na iska (IAT) da firikwensin injin injin (ECT). PCM ɗin yana duba ƙarfin ƙarfin firikwensin AAT kuma yana kwatanta shi da karatun firikwensin IAT / ECT lokacin da aka fara kunna wutar bayan dogon sanyi. An saita wannan lambar idan waɗannan bayanan sun bambanta sosai. Hakanan yana bincika siginar ƙarfin lantarki daga waɗannan firikwensin don sanin ko daidai ne lokacin da injin ya cika ɗumi. Yawancin lokaci ana saita wannan lambar saboda matsalolin lantarki.
Matakan matsala na iya bambanta dangane da mai ƙira, nau'in firikwensin AAT, da launuka na waya.
da bayyanar cututtuka
Kwayar cutar na iya haɗawa da:
- An kunna haske mai nuna kuskure
- Mai sanyaya iska ba zai yi aiki yadda ya kamata ba
- Cluster na kayan aiki bazai iya karanta zafin jiki na waje daidai ba
- Babban na'ura wasan bidiyo ba zai iya karanta zafin jiki na yanayi daidai ba
dalilai
Dalili mai yiwuwa na DTC P0074 na iya haɗawa da:
- Buɗewar ɗan lokaci a cikin da'irar sigina zuwa firikwensin AAT - mai yiwuwa
- Takaitaccen gajere zuwa ƙarfin lantarki a cikin siginar siginar firikwensin AAT
- Gajeriyar hanya zuwa ƙasa a cikin siginar siginar zuwa firikwensin AAT
- Raunin firikwensin AAT
- PCM da ya gaza - Ba zai yuwu ba
Matsaloli masu yuwu
Kyakkyawan farawa shine koyaushe bincika takaddun sabis na fasaha (TSB) don takamaiman abin hawa. Matsalar ku na iya zama sanannen batun tare da sanannen gyaran masana'anta kuma yana iya adana ku lokaci da kuɗi yayin bincike.
Sannan nemo firikwensin AAT akan takamaiman abin hawa. Wannan firikwensin galibi yana gaban radiator a bayan grille ko a yankin damina na gaba. Da zarar an gano, duba abubuwan gani da wayoyi. Nemo karce, goge -goge, wayoyi da aka fallasa, alamomin ƙonawa, ko narkakken filastik. Cire haɗin haɗin kuma a hankali bincika tashoshi (sassan ƙarfe) a cikin masu haɗin. Duba idan sun ga sun kone ko suna da koren launi wanda ke nuna lalata. Idan kuna buƙatar tsabtace tashoshi, yi amfani da mai tsabtace lambar lantarki da goga na goga. Bada damar bushewa da shafa man shafawa na lantarki inda tashoshin tashoshi ke taɓawa.
Laifi na yau da kullun shine haɗin kai, tare da na'urar firikwensin kuskure yana zuwa a wuri na biyu saboda mummunan yanayin muhalli.
Lokacin duba hanyoyin haɗin yanar gizon, zaku iya bincika firikwensin ta amfani da mitar volt ohm (DVOM). Ƙonewa KASHE, cire haɗin firikwensin kuma haɗa haɗin ja (tabbatacce) tashar DVOM zuwa tashar guda ɗaya akan firikwensin da madaidaicin (mara kyau) tashar DVOM zuwa ɗayan tashar. Ƙayyade zafin jiki na firikwensin (menene zafin jiki a waje) ta juriya bisa ga tebur. Wannan shine juriya ohm da yakamata DVOM ɗinku ta nuna. Ko dai 0 ohms ko juriya mara iyaka (galibi ana nuna ta haruffan OL) yana nuna firikwensin firikwensin.
Idan kuna da kayan aikin sikirin, share lambobin matsalar bincike daga ƙwaƙwalwar ajiya kuma duba idan lambar ta dawo. Idan wannan ba haka bane, to akwai yuwuwar matsalar haɗin gwiwa.
Idan lambar P0070 ta dawo, za mu buƙaci gwada firikwensin AAT da da'irori masu alaƙa. Yawancin lokaci akwai wayoyi 2 akan firikwensin AAT. Ƙonewa KASHE, cire haɗin kayan doki a firikwensin AAT. Kunna wuta. Tare da kayan aikin sikelin da ke isa ga bayanan PCM (ɗauka cewa module ne yana karɓar shigarwar firikwensin AAT; ƙirar da ke karɓar shigarwar firikwensin AAT na iya zama tsarin sarrafa kwandishan, ƙirar lantarki ta duniya, ko wani madaidaiciya zuwa abin hawa na gaba wanda zai iya aika firikwensin AAT bayanai akan hanyar sadarwar bas), karanta zazzabi ko ƙarfin lantarki na firikwensin AAT. Yakamata ya nuna 5 volts ko wani abu ban da zazzabi na yanayi (ƙarancin zafin jiki) a cikin digiri. Na gaba, kashe ƙonewa, haɗa waya mai tsalle zuwa tashoshi biyu a cikin mai haɗa kayan haɗin da ke zuwa firikwensin AAT, sannan kunna kunnawa. Yakamata ya karanta game da 0 volts ko wani abu ban da zazzabi na yanayi (mai tsananin zafi) a cikin digiri. Idan babu volt 5 akan firikwensin ko kuma ba ku ga canji ba, gyara wayoyi daga PCM zuwa firikwensin, ko wataƙila PCM mara kyau.
Sake haɗa firikwensin kuma girgiza mai haɗawa yayin lura da ƙarfin lantarki ko digiri daga firikwensin AAT. Idan, yayin jujjuya wayoyin, an gano canji a cikin ɗayan su, wannan yana nuna haɗin kai tsaye. Nemo inda aka karkatar da wayoyin kuma yi alama a kowane wuri inda zasu taɓa / shafa akan ɓangaren jikin ko firam.
Idan duk gwaje -gwajen da suka gabata sun wuce kuma kun ci gaba da karɓar P0070, wataƙila zai nuna alamar firikwensin AAT, kodayake ba za a iya cire ikon sarrafa ikon da aka gaza ba har sai an maye gurbin firikwensin AAT. Idan ba ku da tabbas, nemi taimako daga ƙwararren masanin binciken motoci. Don shigarwa daidai, PCM dole ne a tsara ko daidaita shi don abin hawa.
Tattaunawar DTC mai dangantaka
- Jeep Kwamandan 2006 sakiSannu. Ina sha'awar idan firikwensin matsayin matsi ko maɗaurin zafin iska zai iya lalacewa yayin aikin gyaran kai. Dillalin ya gyara kawunan kuma ƙasa da mako guda daga baya na fara samun matsaloli tare da wannan firikwensin. Ba ni da matsala da wannan kafin a cikin shekaru 4 ...
Kuna buƙatar ƙarin taimako tare da lambar ku ta p0074?
Idan har yanzu kuna buƙatar taimako tare da DTC P0074, aika tambaya a cikin sharhin da ke ƙasa wannan labarin.
NOTE. An ba da wannan bayanin don dalilai na bayanai kawai. Ba a yi nufin amfani da shi azaman shawarar gyara ba kuma ba mu da alhakin duk wani mataki da za ku ɗauka a kan kowane abin hawa. Duk bayanan da ke wannan shafin ana kiyaye su ta haƙƙin mallaka.
