P0991 Transmission fluid pressure sensor "E" circuit intermittent/erratic

P0991 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0991 qhia tias muaj teeb meem sib cuam tshuam / sib cuam tshuam hauv kev sib kis cov kua dej siab sensor "E" circuit.

Qhov txhaum cai txhais li cas P0991?

Teeb meem code P0991 qhia txog teeb meem teeb meem nyob rau hauv lub kis tau tus mob kua siab sensor "E" Circuit Court. Qhov no txhais tau hais tias lub kaw lus tsis siv neeg kis tau tus mob tau kuaj pom tsis muaj kev ruaj ntseg lossis tsis sib xws hauv cov teeb liab los ntawm qhov kis tau tus mob siab sensor "E". Cov kis tau tus mob siab sensor ua lub luag haujlwm tseem ceeb hauv kev hloov pauv ntawm lub zog thiab kev ua haujlwm kom zoo los ntawm kev tswj cov solenoid li qub uas tswj lub siab thiab tswj los ntawm PCM (lub cav tswj module). Teeb meem P0991 tshwm sim thaum PCM pom tias qhov sib kis ntawm cov kua dej tawm sab nraud ntawm cov chaw tsim khoom tau teev tseg. Thaum cov cai no tshwm sim, lub teeb Check Engine tig rau. PCM txiav txim siab qhov yuav tsum tau ua raws li txoj haujlwm throttle, tsheb ceev, cav load thiab cav ceev.

Tej zaum ua rau

Qee qhov laj thawj rau P0991 teeb meem code:

• Transmission fluid siab sensor malfunction: Lub sensor nws tus kheej yuav ua puas los yog ua tsis tiav vim hnav los yog ua haujlwm tsis raug.
• Cov kab mob puas los yog tawg: Teeb meem nrog kev xaim, kev sib txuas, lossis cov khoom sib txuas nrog rau kev sib kis ntawm cov kua dej siab tuaj yeem ua rau P0991 code.
• Teeb meem nrog lub tsheb lub tshuab hluav taws xob: Piv txwv li, cov teeb meem hauv av lossis luv luv hauv kev tswj hwm kev sib kis tuaj yeem ua rau muaj teeb meem tsis ruaj khov.
• Engine Control Module (PCM) Teeb meem: Kev ua haujlwm tsis zoo lossis ua yuam kev hauv PCM, uas tswj cov teeb liab thiab ua cov ntaub ntawv los ntawm kev xa cov kua dej siab sensor, tuaj yeem ua rau P0991 code tshwm.
• Transmission fluid teeb meem: Cov kua dej tsis txaus lossis tsis muaj paug tuaj yeem ua rau tsis sib haum xeeb ntawm lub siab sensor.

Cov no tsuas yog qee qhov laj thawj, thiab qhov laj thawj tiag tiag yuav nyob ntawm qhov tshwj xeeb tsim thiab qauv ntawm lub tsheb. Txhawm rau txiav txim siab qhov laj thawj kom raug, nws raug nquahu kom ua qhov kev kuaj mob ntxaws siv cov cuab yeej tsim nyog thiab cov cuab yeej siv.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0991?

Cov tsos mob rau P0991 teeb meem code tuaj yeem sib txawv nyob ntawm qhov teeb meem tshwj xeeb thiab cov yam ntxwv ntawm lub tsheb, qee cov tsos mob tshwm sim uas yuav tshwm sim yog:

• Gearshift teeb meem: Qhov tsis siv neeg kis tau tus mob yuav tsis ruaj khov lossis hloov tsis raug ntawm cov iav.
• Cov suab tsis zoo los yog kev vibrations: Koj tuaj yeem hnov ​​​​lub suab txawv txawv lossis kev vibrations thaum hloov lub zog lossis tsav tsheb vim kev ua haujlwm tsis raug.
• Kev hloov hauv lub cav ua haujlwm: Yog tias muaj teeb meem nrog kev sib kis thiab kev sib kis ntawm cov kua dej siab, cov kev hloov hauv lub cav yuav tshwm sim, xws li tsis ruaj tsis khov ceev lossis ua haujlwm tsis zoo thaum ua kom nrawm.
• Kev siv roj ntau ntxiv: Kev ua haujlwm tsis zoo ntawm kev sib kis tuaj yeem ua rau muaj kev siv roj ntau ntxiv vim kev hloov pauv tsis zoo thiab lub cav tsis zoo.
• Tig rau ntawm Lub Teeb Tsav Tsheb: Teeb meem code P0991 activates Check Engine Light ntawm koj lub tsheb lub dashboard, qhia txog teeb meem nrog lub kis tau tus mob los yog cav tswj system.

Yog tias koj pom ib qho ntawm cov tsos mob no lossis koj lub teeb pom kev ntawm lub cav tuaj, nws raug nquahu kom koj tam sim ntawd hu rau tus kws kho tsheb uas tsim nyog los kuaj xyuas thiab kho qhov teeb meem.

Yuav ua li cas kuaj tau tus lej txhaum P0991?

Cov kauj ruam hauv qab no raug pom zoo los kuaj xyuas DTC P0991:

1. Tshawb xyuas lub Check Engine Indicator: Tshawb xyuas seb puas muaj lub teeb Check Engine ntawm koj lub tsheb dashboard. Yog tias muaj, sau qhov yuam kev P0991.
2. Siv lub diagnostic scanner: Txuas lub tshuab kuaj kab mob rau lub tsheb OBD-II chaw nres nkoj thiab nyeem cov lej yuam kev. Xyuas kom tseeb tias P0991 code tau teev tseg.
3. Txheeb xyuas qhov sib kis ntawm cov kua dej: Txheeb xyuas qib thiab qhov xwm txheej ntawm cov kua dej sib kis raws li lub tsheb tsim cov lus pom zoo. Cov dej ntws los yog cov kua dej tsis txaus tuaj yeem ua rau muaj teeb meem siab.
4. Kev kuaj kab mob: Saib xyuas cov xaim, kev sib txuas thiab cov khoom sib txuas nrog rau kev sib kis ntawm cov kua dej siab sensor. Xyuas kom tseeb tias tsis muaj kev puas tsuaj, tawg lossis corrosion.
5. Kev ntsuas siab sensor: Txheeb xyuas qhov ua haujlwm ntawm qhov kis tau tus mob siab sensor siv lub multimeter lossis lwm yam cuab yeej tsim nyog. Xyuas kom tseeb tias cov teeb liab los ntawm lub sensor ua tau raws li cov chaw tsim khoom tshwj xeeb.
6. Kev kuaj mob ntxiv: Yog tias tsim nyog, ua qhov kev sim thiab tshuaj xyuas ntxiv, xws li kuaj xyuas qhov ntsuas hluav taws xob hluav taws xob thiab kev tiv thaiv, thiab kuaj lub cav tswj module (PCM).
7. Kev tshem tawm cov teeb meem txheeb xyuas: Thaum qhov ua rau ntawm qhov teeb meem tau raug txheeb xyuas, ua tiav qhov tsim nyog kho lossis hloov qhov chaw.

Yog tias koj tsis tuaj yeem txiav txim siab qhov ua rau ntawm tus lej P0991 koj tus kheej lossis ua haujlwm kho qhov tsim nyog, nws raug nquahu kom koj hu rau tus kws kho tsheb tshwj xeeb lossis lub khw kho tsheb kom kuaj xyuas thiab kho ntxiv.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0991, cov teeb meem hauv qab no yuav tshwm sim:

• Kev txhais tsis raug ntawm cov cai: Kev txhais cov lej P0991 yam tsis muaj cov ntsiab lus lossis tsis kuaj tag nrho lwm yam kev sib kis yuav ua rau cov lus xaus tsis raug.
• Faulty Wiring Diagnostics: Kev kuaj xyuas cov xaim tsis raug cuam tshuam nrog kev sib kis ntawm cov kua dej siab tuaj yeem ua rau tsis tuaj yeem qhib, corrosion, lossis lwm yam teeb meem hluav taws xob.
• Kev ntsuas siab sensor tsis raug: Kev sim tsis raug lossis kev txhais lus ntawm kev sib kis ntawm cov kua dej siab ntsuas qhov ntsuas qhov ntsuas yuav ua rau cov lus txiav txim tsis raug txog nws qhov kev ua tau zoo.
• Malfunction ntawm lwm yam Cheebtsam: Tsis quav ntsej lossis kuaj pom tsis raug lwm yam kis tau tus mob, xws li solenoid li qub lossis lub cav tswj lub cav (PCM), tuaj yeem ua rau ploj ntawm qhov teeb meem tiag tiag.
• Tsis muaj cov cuab yeej tsim nyog lossis kev paub: Tsis muaj cov cuab yeej tshwj xeeb lossis kev paub txog kev tswj kev sib kis yuav tiv thaiv kev kuaj mob thiab kho kom raug.

Txhawm rau kuaj pom tus lej P0991 kom tiav, koj yuav tsum muaj cov cuab yeej raug, kev paub dhau los, thiab kev paub txog kev tswj hwm kev sib kis. Nws yog ib qho tseem ceeb uas yuav tsum tau ua raws li cov theem ntawm kev kuaj mob thiab xyuas kom meej tias cov txiaj ntsig kev xeem raug txhais raug.

Txoj cai txhaum loj npaum li cas? P0991?

Teeb meem code P0991 qhia tias muaj teeb meem nrog lub tshuab xa hluav taws xob siab, uas tuaj yeem ua rau muaj qhov tshwm sim loj ntawm lub tsheb ua haujlwm. Nws yog ib qho tseem ceeb kom nkag siab tias kev ua haujlwm sib kis yog qhov tseem ceeb rau kev ua haujlwm ntawm lub tsheb, yog li txhua yam teeb meem nrog kev sib kis ntawm cov kua dej siab tuaj yeem ua rau tus cwj pwm kis tsis tau zoo, kev ua haujlwm tsis zoo, thiab kev puas tsuaj rau cov khoom sib kis. Qee zaum, P0991 code yuav ua rau cov hauv qab no:

• Kev hloov pauv tsis raug: Cov teeb meem nrog kev sib kis ntawm cov kua dej siab tuaj yeem ua rau kev sib kis tsis raug lossis txawm kaw qhov kis tau tus mob.
• Ntxiv hnav ntawm cov khoom sib kis: Yog tias cov kua dej sib kis tsis txaus, cov khoom sib kis yuav raug coj mus ntxiv vim yog lubrication tsis raug thiab txias.
• Kev siv roj ntau ntxiv: Kev ua haujlwm tsis zoo ntawm kev sib kis tuaj yeem ua rau muaj kev siv roj ntau ntxiv vim lub zog tsis zoo thiab kev ntxhov siab ntxiv ntawm lub cav.
• Muaj feem xyuam kev nyab xeeb: Cov teeb meem loj ntawm kev sib kis tau tshwm sim los ntawm kev sib kis tsis txaus siab yuav ua rau tsis muaj kev tswj xyuas lub tsheb, uas tuaj yeem ua rau muaj kev phom sij rau tus neeg tsav tsheb thiab cov neeg caij tsheb.

Yog li ntawd, P0991 code yuav tsum raug txiav txim siab loj thiab nws raug pom zoo tias yuav tsum tau ua tam sim ntawd los kuaj xyuas thiab kho qhov teeb meem kom tsis txhob muaj kev puas tsuaj ntxiv thiab ua kom muaj kev nyab xeeb ntawm lub tsheb.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0991?

Kev daws qhov teeb meem ntawm P0991 yog nyob ntawm qhov laj thawj tshwj xeeb ntawm txoj cai, muaj ob peb kauj ruam kho tau:

1. Hloov lossis kho qhov kis tau tus mob siab sensor: Yog tias qhov ua rau P0991 code yog teeb meem nrog lub siab sensor nws tus kheej, nws yuav tsum tau hloov. Nyob rau hauv rooj plaub uas muaj teeb meem nrog cov xaim lossis kev sib txuas, lawv tuaj yeem kho lossis hloov.
2. Tshawb xyuas thiab hloov cov kua dej sib kis: Yog tias qib lossis qhov zoo ntawm cov kua dej sib kis tsis tau raws li cov chaw tsim khoom cov lus pom zoo, nws yog ib qho tsim nyog los hloov nws thiab xyuas kom meej tias qib siab yog qhov tseeb.
3. Diagnostics thiab kho ntawm hydraulic kis system: Qee zaum, qhov teeb meem yuav cuam tshuam nrog rau lwm yam khoom ntawm kev sib kis hydraulic, xws li solenoid li qub lossis tswj module. Nws yog ib qho tsim nyog los ua cov kev kuaj mob ntxiv thiab, yog tias tsim nyog, hloov lossis kho cov khoom siv no.
4. Tshawb xyuas thiab ntxuav lub lim kis: Lub lim kis tau los yog qias neeg tuaj yeem ua rau muaj teeb meem kev sib kis ntawm cov kua dej. Txheeb xyuas qhov xwm txheej ntawm cov lim dej thiab, yog tias tsim nyog, hloov lossis ntxuav nws.
5. Software hloov tshiab: Qee lub sij hawm qhov teeb meem yuav cuam tshuam nrog kev sib txuas lus tswj module software. Kos rau firmware hloov tshiab thiab nruab lawv yog tias tsim nyog.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev sib koom ua ke ntawm kev kho qhov sib txawv yuav tsum tau ua kom tiav qhov teeb meem P0991 code. Yog tias koj tsis paub meej txog koj qhov kev txawj ntse lossis tsis muaj cov cuab yeej tsim nyog, nws raug nquahu kom koj hu rau tus kws kho tsheb uas tsim nyog lossis muaj ntawv pov thawj lub khw kho tsheb.

Yuav kuaj thiab kho li cas P0991 Cav Code - OBD II Trouble Code piav qhia

P0991 - Cov ntaub ntawv tshwj xeeb ntawm hom

Vim muaj qhov sib txawv hauv kev kuaj mob thiab cov khoom sib txawv ntawm cov hom tsheb sib txawv, cov lej txhaum yuav muaj ntau lub ntsiab lus. Kev txiav txim siab code P0991 rau qee lub tsheb nrov npe:

1. Toyota / Lexus: Kev sib kis ntawm cov kua siab sensor / hloov "E" Circuit Court yog sib quas ntus / tsis zoo.
2. Ford: Kev sib kis ntawm cov kua siab sensor / hloov "E" Circuit Court yog sib quas ntus / tsis zoo.
3. Chevrolet / GMC: Lub teeb liab sib cuam tshuam los yog tsis ruaj khov los ntawm kev sib kis ntawm cov kua siab sensor "E".
4. Honda / Acura: xyuas Teeb meem nrog rau qhov kis tau tus mob siab sensor "E" los yog nws tswj Circuit Court.
5. BMW: Kev sib kis ntawm cov kua siab sensor / hloov "E" Circuit Court yog sib quas ntus / tsis zoo.
6. Mercedes Benz: Kev sib kis ntawm cov kua siab sensor / hloov "E" Circuit Court yog sib quas ntus / tsis zoo.
7. Volkswagen / Audi: Lub teeb liab sib cuam tshuam los ntawm kev sib kis ntawm cov kua siab sensor "E".
8. Subaru Kev sib kis ntawm cov kua siab sensor / hloov "E" Circuit Court yog sib quas ntus / tsis zoo.

Thov xyuas cov ntaub ntawv pabcuam rau koj lub tsheb tshwj xeeb tsim thiab qauv raws li cov cai yuav txawv me ntsis nyob ntawm cov chaw tsim khoom.