P077A Kutulutsa liwiro sensa yozungulira - kutayika kwa chizindikiro

P077A Kutulutsa liwiro sensa yozungulira - kutayika kwa chizindikiro

Mapepala a OBD-II DTC

Kutuluka kwa Speed ​​​​Sensor Circuit - Kutayika kwa Chizindikiro cha Mutu

Kodi izi zikutanthauzanji?

Code Generic Powertrain Diagnostic Trouble Code (DTC) imagwiritsidwa ntchito kwambiri pagalimoto zambiri za OBD-II. Izi zitha kuphatikizira koma sizimangokhala pa Chevrolet, Ford, Toyota, Dodge, Honda, ndi zina zambiri.

Galimoto yanu ikasunga nambala ya P077A, zikutanthauza kuti gawo loyendetsa mphamvu yamagetsi (PCM) lazindikira kutayika kwa chizindikiritso chazitsogozo kuchokera pa sensa yothamanga.

Masensa othamanga nthawi zambiri amakhala amagetsi. Amagwiritsa ntchito mphete kapena zida zamagetsi zomwe zimalumikizidwa kwathunthu ndi shaft yotulutsa. Monga kutsinde linanena bungwe atembenuza, riyakitala mphete amazungulira. Mano otupa a mphete yotsekemera amatseka gawo lotulutsa mawotchi othamanga akamadutsa pafupi kwambiri ndi sensa yamagetsi yamagetsi. Makinawa akamadutsa pamagetsi yamagetsi yamagetsi, zotumphukira pakati pa mano a mphete ya riyakitala zimapangitsa kuti pakhale zovuta zakuzungulira. Kuphatikizika kwakanthawi ndi kusokonekera kumalandiridwa ndi PCM (ndi owongolera ena) ngati mawonekedwe amachitidwe omwe amaimira chiwongola dzanja cha baud.

Chojambuliracho chimalumikizidwa mwachindunji mnyumbayo kapena chimakhala ndi bolt. O-mphete imagwiritsidwa ntchito popewa madzi kuti asatuluke munzeru ya sensa.

PCM imayerekezera kulowetsa ndi kutulutsa kwakanthawi kofalitsako kuti muwone ngati kufalikira kukusintha moyenera ndipo ikugwira bwino ntchito.

Ngati P077A yasungidwa, PCM yapeza ma voliyumu olowera kuchokera ku sensa yothamanga yomwe ikusonyeza kuti mpheteyo siyenda. Pamene chiwonetsero cha voliyumu yamagetsi yamagetsi sichimasinthasintha, PCM imaganiza kuti mpheteyo yasiya mwadzidzidzi kusuntha. PCM imalandira zolowetsa zamagalimoto ndi zolowetsa liwiro la magudumu kuphatikiza pazakutulutsa kwa sensa yothamanga. Poyerekeza zikwangwani izi, PCM imatha kudziwa ngati makina oyendetsera magetsi akuyenda mokwanira (malingana ndi chizindikirocho kuchokera pa sensor sensor). Chizindikiro chokhazikika cha sensor chothinirana chingayambidwe ndi vuto lamagetsi kapena vuto lamagetsi.

Nachi chitsanzo cha sensa yothamangitsira:

Kodi kuuma kwa DTC kumeneku ndi kotani?

Zinthu zomwe zimapangitsa kuti pulogalamu ya P077A isapitirire itha kapena itha kukhala chifukwa cholephera kufalitsa kwa ngozi ndipo ziyenera kuwongoleredwa mwachangu.

Kodi zina mwazizindikiro za code ndi ziti?

Zizindikiro za nambala ya injini ya P077A itha kuphatikizira:

• Kugwira ntchito mosalekeza kwa liwiro la othamanga / odometer
• Mitundu yachilendo yamagetsi yosinthira
• Kutumiza kuzembera kapena kuchedwa kuchita chibwenzi
• Kukhazikitsa / kutsegulira kwa kuwongolera (ngati kuli kotheka)
• Mauthenga ena opatsirana ndi / kapena ABS akhoza kusungidwa

Kodi zina mwazomwe zimayambitsa codezi ndi ziti?

Zifukwa za code iyi zitha kuphatikizira izi:

• Opunduka linanena bungwe liwiro kachipangizo
• Zinyalala zazitsulo pazitsulo zotulutsa liwiro
• Dera lotseguka kapena lalifupi m'mayendedwe kapena zolumikizira (makamaka pafupi ndi sensa yothamanga)
• Kuwonongeka kapena kuvala mphete
• Kulephera kwa kufalitsa kwamakina

Kodi ndi njira ziti zina zothetsera P077A?

Nthawi zambiri ndimakonda kuyamba kupeza P077A ndikuwunika momwe zingwe zilili ndi zolumikizira. Ndingachotse sensa yotulutsa liwiro ndikuchotsa zinyalala zowonjezera pazitsulo zamaginito. Samalani mukamachotsa sensa ngati kutulutsa kwamadzi otentha kumatha kutuluka mu sensa. Konzani dera lotseguka kapena lalifupi m'mayendedwe ndi zolumikizira ngati kuli kofunikira.

Pambuyo pochotsa sensa kuti muwone, yang'anani mpheteyo. Ngati mphete ya riyakitala yawonongeka, yang'ambika, kapena ngati mano akusowa (kapena otayika), mwina mwapeza vuto lanu.

Onetsetsani kuti mwadzidzidzi muli kachilombo ngati matenda ena atuluka. Madziwa amayenera kukhala oyera komanso osanunkhira. Ngati kuchuluka kwa madzi othirako kukuchepera kotala limodzi, lembani ndi madzi abwino ndikuyang'ana kutuluka. Kutumiza kuyenera kudzazidwa ndi madzimadzi oyenera komanso mawonekedwe abwino asanapezeke.

Ndidzafunika chowunikira chomwe chili ndi oscilloscope, digito volt / ohmmeter (DVOM) komanso gwero lodalirika lazidziwitso zamagalimoto kuti mupeze nambala ya P077A.

Ndimakonda kulumikiza sikani ku doko lodziwitsa magalimoto kenako ndikutenga ma DTC onse osungidwa ndikuwumitsa chimango. Nditha kulemba izi ndisanachotsere nambala iliyonse, chifukwa itha kukhala yothandiza ndikamapeza matenda anga.

Pezani ma technical Service Bulletins (TSB) oyenera pogwiritsa ntchito gwero lazidziwitso zamagalimoto anu. Kupeza TSB komwe kumafanana ndi zizindikiritso ndi ma nambala osungidwa (a galimoto yomwe ikufunsidwayo) atha kukuthandizani kuzindikira mwachangu komanso molondola.

Gwiritsani ntchito pulogalamu ya scanner kuti muwone momwe akutulutsira poyendetsa galimoto. Kuchepetsa kutsetsereka kwama data kuti muwonetse magawo okhaokha kumakulitsa kuthamanga ndi kulondola kwakubweretsa deta. Zizindikiro zosagwirizana kapena zosagwirizana kuchokera pakuyambitsa kapena kutulutsa masensa othamanga kumatha kubweretsa kulumikizana kwa waya, cholumikizira magetsi, kapena zovuta zama sensa.

Chotsani chojambulira chothamanga ndikugwiritsa ntchito DVOM kuyesa kutsutsa. Gwero lanu lazidziwitso zamagalimoto liyenera kuphatikiza zithunzithunzi zazolumikizira, mitundu yolumikizira, zolumikizira zolumikizira, ndi njira zoyeserera / malangizidwe oyenera a opanga. Ngati kachipangizo kamene kamatuluka mofulumira sikunatchulidwe, ziyenera kuonedwa ngati zopanda pake.

Zambiri zenizeni kuchokera ku sensor yotulutsa liwiro zitha kupezeka pogwiritsa ntchito oscilloscope. Chongani kachipangizo liwiro kachipangizo chizindikiro waya ndi kachipangizo nthaka waya. Mungafunike kujowa kapena kukweza galimoto kuti mumalize kuyesa kwamtunduwu. Mawilo oyendetsa akachoka pansi ndipo galimotoyo yokhazikika bwino, yambani kufalitsa poyang'ana tchati cha waveform pa oscilloscope. Mukuyang'ana ma glitches kapena kusagwirizana pamayendedwe opangidwa ndi chizindikirochi.

• Chotsani zolumikizira kuchokera kwa owongolera omwe akulumikizidwa mukamachita mayesero oyeserera ndi kupitiriza ndi DVOM. Kulephera kutero kumatha kuwononga wowongolera.

Zokambirana zokhudzana ndi DTC

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

Mukufuna thandizo lina ndi nambala ya P077A?

Ngati mukufunabe thandizo lokhudza DTC P077A, 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.