P0074 Ambient Air Temperature Sensor Circuit Intermittent
Amakhodi wephutha we-OBD2

P0074 Ambient Air Temperature Sensor Circuit Intermittent

P0074 Ambient Air Temperature Sensor Circuit Intermittent

Idatha ye-OBD-II DTC

Ukungasebenzi kahle kwe-Ambient Air Tempor Sensor

Kusho ukuthini lokhu?

Le DTC ejwayelekile yokudlulisela / injini ivamise ukusebenza kuzo zonke izimoto ezifakiwe ze-OBDII.

Inzwa yokushisa yomoya ezungezile (AAT) iguqula izinga lokushisa elizungezile libe yisiginali kagesi iye kumodyuli wokulawula amandla we-powertrain (PCM). Lokhu kufakwa kusetshenziselwa ukushintsha ukusebenza kohlelo lokungenisa umoya futhi kubonise izinga lokushisa elingaphandle.

I-PCM ithola lokhu kufaka futhi mhlawumbe amanye amabili; Ukushisa kwe-intake yomoya (i-IAT) kanye ne-engine coolant temperature (ECT) sensor. I-PCM ihlola amandla we-AAT sensor voltage bese iyiqhathanisa nokufundwa kwenzwa ye-IAT / ECT lapho ukuthungela kuqala kuvulwa ngemuva kwesikhathi eside sokupholisa. Le khodi isethwe uma lokhu okufakwayo kwehluka kakhulu. Iphinde ibheke amasiginali wamandla avela kulezi zinzwa ukuthola ukuthi aqinisile yini lapho injini ifudunyezwa ngokuphelele. Le khodi ivame ukusethwa ngenxa yezinkinga zikagesi.

Izinyathelo zokuxazulula inkinga zingahluka ngokuya ngomkhiqizi, uhlobo lwenzwa ye-AAT, nemibala yocingo.

izimpawu

Izimpawu zingafaka:

  • Isibani sesibonakaliso sephutha sivuliwe
  • Isipholisi kungenzeka singasebenzi kahle
  • Iqoqo lensimbi kungenzeka lingafundi ngokunembile ithempelesha yangaphandle
  • Ikhonsoli ephezulu ingahle ingafundi ngokunembile ukushisa kwama-ambient

izizathu

Izimbangela ezingaba khona ze-DTC P0074 zingafaka:

  • Okuvuleka ngezikhathi ezithile kumjikelezo wesiginali kunzwa ye-AAT - okungenzeka
  • Okufushane okuphakathi kwamandla kuya kumjikelezo wesiginali wenzwa ye-AAT
  • Okufushane okuphakathi komhlaba kuya kumjikelezo wesiginali kunzwa ye-AAT
  • Inzwa ye-AAT enamaphutha
  • I-PCM Yehlulekile - Akwenzeki

Izixazululo ezingenzeka

Iphuzu elihle lokuqala ngaso sonke isikhathi ukuhlola ama-bulletins ezinsizakalo zobuchwepheshe (i-TSB) yemoto yakho ethile. Inkinga yakho ingaba inkinga eyaziwa ngesilungisi esikhishwe ngumkhiqizi futhi ingakongela isikhathi nemali ngenkathi uxazulula inkinga.

Bese uthola inzwa ye-AAT emotweni yakho ethile. Le nzwa ivame ukutholakala phambi kwe-radiator ngemuva kwe-grille noma endaweni engaphambili yebhamu. 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.

Iphutha elivame kakhulu ukuxhuma, lapho inzwa engalungile ifika endaweni yesibili ngenxa yezimo zemvelo ezimbi.

Lapho uhlola ukuxhumana, ungabheka inzwa ngemitha ye-digital volt ohm (DVOM). Ukuthungela KUVALIWE, nqamula inzwa bese uxhuma i-red (positive) ye-DVOM ukuphela kwesinye esibulalayo ku-sensor kanye nesiginali esimnyama (esingesihle) se-DVOM kwesinye isiphetho. Thola izinga lokushisa lenzwa (yini izinga lokushisa ngaphandle) ngokumelana ngokusho kwetafula. Lokhu ukumelana ne-ohm okufanele kuboniswe yi-DVOM yakho. I-0 ohms noma ukumelana okungapheli (okuvame ukukhonjiswa yizinhlamvu OL) kukhombisa inzwa engalungile.

Uma unethuluzi lokuskena, sula amakhodi ezinkinga zokuxilonga kwimemori bese ubona ukuthi ikhodi iyabuya yini. Uma lokhu kungenjalo, kungenzeka ukuthi kunenkinga yokuxhuma.

Uma ikhodi ye-P0070 ibuya, kuzodingeka sihlole inzwa ye-AAT namasekethe ahambisanayo. Imvamisa kunezintambo ezimbili enzwa ye-AAT. Ukuthungela KUVALIWE, nqamula i-harness kunzwa ye-AAT. Khanyisa ukuthungela. Ngethuluzi lokuskena elifinyelela idatha ye-PCM (kucatshangwa ukuthi liyisimo esithola okokufaka kwe-AAT; imojuli ethola okokufaka kwe-AAT sensor kungaba module yokulawula umoya-moya, imodyuli ye-elekthronikhi, noma enye imodyuli eya emotweni engaphambili engathumela inzwa ye-AAT idatha ngenethiwekhi yebhasi), funda izinga lokushisa noma amandla we-AAT sensor. Kufanele ikhombise ama-volts ama-2 noma enye into ngaphandle kwezinga lokushisa elincane (izinga lokushisa eliphansi kakhulu) ngama-degree. Okulandelayo, cisha ukuthungela, xhuma i-jumper wire kuma-terminals amabili ngaphakathi kwesixhumi se-harness esiya kwinzwa ye-AAT, bese uvula umlilo. Kufanele ifunde ngama-volts ayi-5 noma enye into ngaphandle kwezinga lokushisa elikhona (izinga lokushisa eliphakeme kakhulu) ngama-degree. Uma kungekho 0 volt enzwa noma ungaboni ushintsho, lungisa i-wiring kusuka ku-PCM iye kwinzwa, noma mhlawumbe i-PCM enephutha.

Xhuma kabusha inzwa bese unyakazisa isixhumi ngenkathi uqapha amandla kagesi noma ama-degree kusuka kunzwa ye-AAT. Uma, ngenkathi uthinta izintambo, kutholwa ushintsho kunoma iyiphi yazo, lokhu kukhombisa ukuxhumana okuphakathi. Bheka lapho izintambo zihanjiswa khona bese umaka noma iliphi iphuzu lapho zingathinta / zihlikihle iphaneli lomzimba noma ifreyimu.

Uma konke ukuhlolwa kwangaphambilini kudlula futhi uqhubeka nokuthola i-P0070, lokhu kuzokhombisa inzwa ye-AAT ehlulekile, yize imodyuli yokulawula ehlulekile ingakhishwa ngaphandle kuze kufakwe inzwa ye-AAT. Uma ungaqiniseki, funa usizo kudokotela oqeqeshiwe wezimoto. Ukufaka kahle, i-PCM kufanele ihlelwe noma ilinganiselwe imoto.

Izingxoxo ezihlobene ze-DTC

  • Ukukhishwa kweJeep Commander 2006Sawubona. Ngiyafuna ukwazi ukuthi inzwa yesimo sokuthamba noma i-wiring lokushisa komoya kungalimala ngesikhathi sokuguqulwa kwekhanda. Umthengisi uguqule amakhanda futhi kungakapheli nesonto ngaqala ukuba nezinkinga ngale nzwa. Bengingenankinga ngalokhu ngaphambi kweminyaka engu-4 ... 

Udinga usizo olwengeziwe ngekhodi le-p0074?

Uma usadinga usizo nge-DTC P0074, thumela umbuzo kumazwana angezansi kwalesi sihloko.

QAPHELA. Lolu lwazi lunikezwa ngenhloso yokwaziswa kuphela. Akuhloselwe ukuthi isetshenziswe njengesincomo sokulungisa futhi asinacala nganoma yisiphi isenzo osithathayo kunoma iyiphi imoto. Yonke imininingwane ekulesi siza ivikelwe yi-copyright.

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