P0780 Gear Shift Malfunction

P0780 – OBD-II Teeb meem Code Technical Description

Hloov ua txhaum

Qhov txhaum cai txhais li cas P0780?

Hauv kuv lub tswv yim, tus lej P0780 muaj feem cuam tshuam rau qhov teeb meem hauv kev sib kis tsis siv neeg, thiab nws tuaj yeem tshwm sim vim yog kev ua txhaum ntawm txhua yam lossis hluav taws xob. Txoj cai no tsuas yog siv rau cov tsheb uas tsis siv neeg kis.

Tsis siv neeg kis tau tus mob nyob rau hauv OBD-II nruab tsheb yog tswj los ntawm ib tug powertrain tswj module (PCM) los yog ib tug standalone kis tau tus mob tswj module (TCM). Lawv tau txais cov ntaub ntawv los ntawm lub cav thiab kis tau tus mob sensors los txiav txim siab hloov cov tswv yim. Los ntawm kev ua kom cov hluav taws xob solenoid li qub, lawv tswj cov dej ntws ntawm cov dej siab hauv kev sib kis hydraulic circuits, tso cai rau lub zog hloov mus los yog qis raws li xav tau. Txhawm rau tsim qhov tsim nyog hydraulic siab, lub twj tso kua mis muaj zog uas tau tsav los ntawm lub cav yog siv.

Lub tshuab kis tau tus mob kuj tseem tswj lub siab siv lub tshuab hluav taws xob hluav taws xob raws li kev hloov pauv ntawm lub cav ceev thiab thauj khoom. Nws siv lub siab sensor thiab kis tau tus mob kub sensor los saib xyuas lub siab thiab hloov pauv. Yog tias tus maub los kuaj pom qhov kev hloov pauv tsis zoo, nws khaws P0780 code thiab tuaj yeem qhib lub teeb pom kev tsis zoo (MIL). Qee lub sij hawm tus lej no tsis ua haujlwm tam sim ntawd thiab yuav xav tau ntau qhov kev mus ncig ua si kom qhib.

Nws tuaj yeem muaj ntau yam laj thawj rau P0780 code tig rau, suav nrog cov teeb meem ntawm cov khoom siv xws li lub valve tswj uas yog tripping lossis solenoid valve uas ua haujlwm tsis zoo, ua rau kev sib kis tsis raug.

Tej zaum ua rau

Tej yam ua tau ntawm tus lej P0780 suav nrog:

1. Luv luv lossis qhib Circuit Court nyob rau hauv cov xov hlau uas tswj cov kis tau tus mob.
2. Tsawg kis tau tus mob.
3. Cov kua dej qias neeg.
4. Faulty hloov solenoid valve.
5. Cov tswv yim tsis raug lossis tso zis nrawm sensors.
6. Teeb meem nrog hluav taws xob siab regulator.
7. Transmission twj malfunction.
8. Kev puas tsuaj, suav nrog lub zog hloov pauv tsis ua haujlwm, teeb meem clutch, lossis hnav / puas tsuaj rau hauv cov khoom sib kis.
9. Faulty PCM lossis yuam kev hauv PCM programming.

"Shift solenoid valve harness qhib los yog luv" txhais tau hais tias cov xov hlau txuas ntawm kev hloov pauv solenoid valve yuav qhib lossis luv, uas tuaj yeem ua teeb meem nrog kev sib kis thiab kev tswj xyuas.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0780?

P0780 hloov lwm txoj cai yuav tsum suav hais tias tseem ceeb. Txawm tias ib qho txhaum me me tuaj yeem ua teeb meem loj yog tias tsis kho raws sijhawm. Cov tsos mob ntawm P0780 tuaj yeem suav nrog:

1. Tsis ruaj khov iav hloov qauv.
2. Ncua thaum hloov ntawm lub iav.
3. Ntse iav hloov, tshwj xeeb tshaj yog nyob rau hauv kev kub ceev hom.
4. Transmission slippage.
5. Whistling los yog howling nrov ntawm lub twj tso kua mis kis tau tus mob.

Cov tsos mob no xav tau kev saib xyuas tam sim kom tsis txhob muaj kev puas tsuaj loj rau kev sib kis thiab ua kom koj lub tsheb khiav zoo.

Yuav ua li cas kuaj tau tus lej txhaum P0780?

Thaum P0780 hloov pauv cov cai tshwm sim, ua cov kauj ruam hauv qab no:

1. Txheeb xyuas qib thiab qhov xwm txheej ntawm cov kua dej sib kis. Cov dej qias neeg los yog hlawv yuav qhia tau tias muaj teeb meem sab hauv.
2. Saib xyuas cov xov hlau thiab cov khoom sib txuas hauv kev sib kis tswj cov hlua rau kev puas tsuaj, corrosion, lossis kev cuam tshuam.
3. Tshem cov lej khaws cia thiab xyuas seb P0780 code rov tshwm sim tom qab kev sim tsav.
4. Siv lub ntsuas hluav taws xob sib kis los kuaj xyuas lub twj tso kua mis, tshwj xeeb tshaj yog tias cov dej sib kis tau qis.
5. Yog tias cov tsos mob qhia tau tias muaj kev ua haujlwm tsis zoo ntawm solenoid, xav txog kev hloov tag nrho cov solenoids ib zaug yog pom zoo los ntawm cov chaw tsim khoom.
6. Thaum muaj teeb meem hluav taws xob, sab laj nrog lub tsheb daim ntawv qhia kev pabcuam thiab ua raws li kev pom zoo ntawm kev xaim thiab solenoid checks.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias P0780 code tuaj yeem muaj ntau yam ua rau thiab kev kuaj mob kom zoo yuav tsum tau ua los txiav txim siab thiab kho qhov chaw ntawm qhov teeb meem hauv kev sib kis.

Kev kuaj mob yuam kev

Thaum kuaj pom P0780 teeb meem code thiab hloov cov teeb meem, mechanics yuav ua yuam kev hauv qab no:

1. Leaking Transmission Fluid Levels and Conditions: Cov kua dej tsis txaus lossis tsis muaj paug tuaj yeem ua rau lub hauv paus ua rau muaj teeb meem sib kis. Tus kws kho tsheb uas tsis kuaj lossis hloov cov kua dej sib kis tuaj yeem nco txog qhov tseem ceeb ntawm kev kuaj mob.
2. Faulty Sensors: Yog tias tus kws kho tsheb tsis kuaj xyuas qhov kev nkag mus thiab tso zis ceev sensors lossis lwm yam sensors uas yuav cuam tshuam rau kev hloov pauv kev sib kis, kev kuaj pom tsis raug.
3. Kev Tshawb Fawb Kev Sib Txuas Hluav Taws Xob: Kev sib txuas tsis raug xaim, kev sib txuas lossis kev sib cuag tuaj yeem ua rau muaj teeb meem nrog solenoids thiab lwm yam khoom siv hluav taws xob hauv kev sib kis. Ib tug kws kho tsheb yuav tsum xyuas qhov xwm txheej ntawm txhua qhov kev sib txuas hluav taws xob.
4. Tsis paub cov chaw tsim khoom tshwj xeeb cov lus pom zoo: Cov tsheb sib txawv yuav muaj teeb meem sib txawv thiab kev daws teeb meem rau P0780 code. Kev nkag siab tsis raug lossis tsis lees paub cov lus pom zoo los ntawm cov chaw tsim khoom yuav ua rau muaj kev kuaj mob tsis raug thiab kho.
5. Cov cuab yeej siv tsis txaus thiab cov cuab yeej: txhawm rau kuaj xyuas P0780 kom raug thiab ua haujlwm ntawm kev sib kis tau zoo, yuav tsum muaj cov cuab yeej tshwj xeeb, xws li lub tshuab kuaj kab mob, kev ntsuas kev sib kis, thiab lwm yam. Tus kws kho tsheb uas tsis muaj cov cuab yeej tsim nyog yuav ntsib cov kev txwv hauv kev kuaj mob.
6. Hla Kev Tshuaj Xyuas Ntau Yam: Hauv qee kis, P0780 code yuav tsis rov qab tam sim ntawd, thiab tus kws kho tsheb tsis ua ntau yam kev tshuaj xyuas thiab kev sim tsav yuav plam qhov teeb meem.
7. Tsis muaj kev txawj ntse: kis kev kuaj mob yuav tsum muaj kev paub thiab kev paub hauv thaj chaw. Kev tsis paub txog cov yam ntxwv thiab kev ua haujlwm ntawm kev sib kis tuaj yeem ua rau cov lus xaus tsis raug.

Txhawm rau zam cov kev ua yuam kev no, nws yog ib qho tseem ceeb uas yuav tsum tau hu rau tus kws kho tsheb uas tsim nyog lossis chaw pabcuam uas muaj kev paub txog kev kuaj mob thiab kho cov kis tsis siv neeg.

Txoj cai txhaum loj npaum li cas? P0780?

Teeb meem code P0780, ntsig txog cov teeb meem tsis siv neeg kis tau tus mob, yuav tsum tau txiav txim siab loj. Qhov tshwm sim ntawm cov cai no qhia tau hais tias muaj teeb meem nrog kev sib kis, uas tuaj yeem ua rau muaj kev puas tsuaj loj lossis tsis ua haujlwm hauv kev sib kis.

Cov tsos mob cuam tshuam nrog P0780 tuaj yeem suav nrog kev hloov pauv tsis ruaj khov, hloov pauv hnyav, kev sib kis tsis zoo, thiab lwm yam txawv txav. Yog tias qhov kev cai no tsis raug kho thiab tsis quav ntsej, nws tuaj yeem ua rau muaj kev sib kis ntxiv, kev hnav cov khoom siv ntxiv, thiab thaum kawg raug nqi xa rov qab kho lossis hloov.

Yog li ntawd, yog tias koj tus lej P0780 tau teeb pom kev zoo lossis koj pom cov tsos mob uas qhia tias muaj teeb meem hloov pauv, nws raug nquahu kom koj hu rau tus kws kho tsheb uas tsim nyog lossis chaw pabcuam rau kev kuaj mob thiab kho sai li sai tau txhawm rau tiv thaiv kev puas tsuaj ntxiv thiab xyuas kom lub tsheb ua haujlwm ruaj khov thiab nyab xeeb.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0780?

Cov kev kho hauv qab no yuav raug txiav txim siab los daws DTC P0780 thiab cuam tshuam txog kev hloov pauv tsis siv neeg kis tau tus mob:

1. Kev kuaj xyuas cov dej sib kis thiab qhov xwm txheej: Thawj kauj ruam yog los xyuas kom meej tias cov dej sib kis tau raug thiab nyob rau hauv qhov zoo. Cov dej qias neeg lossis dej kub dhau tuaj yeem ua rau muaj teeb meem hloov pauv.
2. Transmission Fluid and Filter Replacement: Yog tias cov kua dej yog qub thiab qias neeg, nws raug nquahu kom hloov cov kua xa dej thiab lim.
3. Kev Ntsuas Solenoids: Faulty solenoids tuaj yeem ua rau muaj teeb meem hloov pauv. Kos thiab, yog tias tsim nyog, hloov faulty solenoids.
4. Tshawb xyuas cov tswv yim thiab tso zis ceev Sensors: Cov tswv yim thiab cov zis ceev sensors ua lub luag haujlwm tseem ceeb hauv kev hloov iav. Xyuas lawv cov functionality thiab hloov yog tias tsim nyog.
5. Tshawb xyuas thiab Kho Cov Hluav Taws Xob thiab Cov Hluav Taws Xob: Cov Hluav Taws Xob thiab cov khoom sib txuas nrog cov solenoids thiab cov sensors tuaj yeem ua rau muaj teeb meem. Xyuas lawv rau qhov tsis xws luag, corrosion thiab puas.
6. Ntsuam xyuas thiab hloov lub torque converter: Yog tias muaj teeb meem txuas ntxiv mus, koj yuav tsum tau kuaj xyuas qhov xwm txheej ntawm lub torque converter thiab kho lossis hloov nws.
7. Tshawb xyuas lub twj tso kua mis: Lub twj tso kua mis kis tau tus kheej tsim cov hydraulic siab xav tau los hloov lub zog. Yog tias lub twj tso kua mis puas lawm, nws yuav tsum tau hloov.
8. Transmission Valve Lub Cev Kev Ntsuas: Valve lub cev tsis ua haujlwm tuaj yeem ua rau muaj teeb meem hloov pauv. Txheeb xyuas qhov xwm txheej ntawm rooj plaub thiab kho lossis hloov yog tias tsim nyog.
9. Kev Ntsuas thiab Reprogramming Lub Transmission Control Module (TCM): Qee zaum, cov teeb meem yuav cuam tshuam nrog TCM. Qhov no yuav xav tau reprogramming lossis hloov TCM.
10. Tshawb xyuas Cov Cheebtsam Sib Txuas Sab Hauv: Yog tias tag nrho cov kauj ruam saum toj no tsis daws qhov teeb meem, cov khoom sib txuas sab hauv yuav tsum tau kuaj xyuas thiab kho.

Kev kho yuav txawv nyob ntawm qhov xwm txheej tshwj xeeb, tsim thiab qauv ntawm lub tsheb, thiab qhov teeb meem tshwj xeeb. Nws yog ib qho tseem ceeb uas yuav tsum tau hu rau ib tus kws kho tsheb uas tsim nyog lossis chaw pabcuam rau kev kuaj mob thiab kho kom raug, vim tias kev hloov pauv yog ib feem tseem ceeb ntawm koj lub tsheb kev ua haujlwm thiab kev kho tsis raug tuaj yeem ua rau muaj qhov tshwm sim loj.

P0780 Cav Code yog dab tsi [Quick Guide]

P0780 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0780 tuaj yeem muaj lub ntsiab lus sib txawv nyob ntawm kev tsim lub tsheb:

1. Toyota, Lexus: P0780 - Teeb meem hauv kev tswj kev sib kis.
2. Ford: P0780 - Qhov yuam kev kis tau tus mob - muaj teeb meem nrog cov teeb liab los ntawm TCM (Transmission Control Module).
3. Chevrolet, GMC: P0780 - Lub iav selector tsis ua haujlwm zoo.
4. Honda, Acura: P0780 - Ua haujlwm solenoid ua haujlwm tsis zoo.
5. Nissan, Infiniti: P0780 - Kev sib kis yuam kev - solenoid.
6. Dodge, Chrysler, Jeep: P0780 - Kev tsis sib haum xeeb ntawm lub iav xaiv cov cim thiab cov zis ncej sib hloov ceev.
7. Hyundai, Kia: P0780 - Teeb meem nrog kev hloov chaw tswj solenoid.
8. Volkswagen, Audi: P0780 – kis teeb liab teeb meem.

Thov nco ntsoov tias cov ntsiab lus tseeb yuav txawv nyob ntawm tus qauv tshwj xeeb thiab xyoo ntawm lub tsheb. Nws raug nquahu kom sab laj nrog ib lub chaw pabcuam lossis tus kws kho tsheb uas ua haujlwm nrog koj lub hom phiaj ntawm lub tsheb txhawm rau kuaj xyuas qhov tseeb thiab kho qhov teebmeem.