P0668 Powertrain / Cav / Transmission Control Module Internal Kub Sensor "A" Circuit Court Tsawg PCM / ECM / TCM

P0668 – OBD-II Teeb meem Code Technical Description

Teeb meem code P0668 qhia tias powertrain control module (PCM), engine tswj module (ECM), los yog kis tau tus mob tswj module (TCM) nyob rau hauv kub sensor Circuit Court voltage yog tsawg heev (piv rau cov chaw tsim tshuaj paus specification).

Qhov txhaum cai txhais li cas P0668?

Teeb meem code P0668 qhia tias tsis tshua muaj hluav taws xob pom nyob rau hauv powertrain control module (PCM), engine tswj module (ECM), los yog kis tau tus mob module (TCM) internal kub sensor Circuit Court. Qhov no tuaj yeem txhais tau tias qhov ntsuas kub ntawm qhov ntsuas kub lossis nws cov xaim tsis raug, lossis muaj teeb meem nrog cov tswj module, uas tuaj yeem cuam tshuam nrog lub cav lossis qhov ntsuas kub. Code P0668 feem ntau ua rau lub teeb pom kev ntawm lub cav pom ntawm koj lub tsheb dashboard.

Tej zaum ua rau

Teeb meem code P0668 tuaj yeem tshwm sim los ntawm ntau yam ua rau:

• Temperature Sensor Failure: Qhov ntsuas kub ntawm nws tus kheej tuaj yeem raug puas los yog ua tsis tiav, ua rau qhov ntsuas kub tsis raug thiab yog li P0668 code.
• Kev Txuas Hluav Taws Xob: Cov xov hluav taws xob sib txuas ntawm qhov ntsuas kub ntawm qhov ntsuas kub mus rau kev tswj hwm module (ECM, TCM, lossis PCM) yuav raug puas tsuaj, tawg, lossis tsis zoo txuas, ua rau muaj qhov hluav taws xob qis thiab qhov yuam kev.
• Tswj Module Failure: Tus tswj module nws tus kheej (ECM, TCM los yog PCM) tej zaum yuav faulty, ua rau kub sensor tsis ua cov ntaub ntawv kom raug thiab ua rau code P0668 tshwm sim.
• Cav lossis kis kub qhov teeb meem: Teeb meem nrog lub cav txias los yog kis tau tus mob txias kuj tuaj yeem ua rau P0668 vim tias qhov ntsuas kub tsis raug yuav raug kaw los ntawm lub sensor.
• Kev teeb tsa tsis raug lossis hloov cov khoom siv tsis raug: Kev teeb tsa tsis raug ntawm qhov ntsuas kub lossis lwm lub cav / kis tau tus mob tswj qhov system tuaj yeem ua rau P0668.

Txhawm rau txiav txim siab qhov ua yuam kev P0668, nws raug nquahu kom kuaj xyuas lub tsheb siv cov cuab yeej tshwj xeeb thiab khoom siv.

Cov tsos mob ntawm tus lej yuam kev yog dab tsi? P0668?

Cov tsos mob cuam tshuam nrog DTC P0668 tuaj yeem sib txawv nyob ntawm cov xwm txheej tshwj xeeb thiab hom tsheb, qee cov tsos mob tshwm sim yog:

• Check Engine Light: Lub teeb pom kev ntawm lub teeb pom kev ntawm koj lub tsheb lub dashboard tej zaum yuav yog thawj thiab foremost kos npe tias muaj teeb meem nrog lub cav lossis kis tau tus mob.
• Poob Lub Hwj Chim: Tej zaum yuav muaj qhov poob ntawm lub cav fais fab, tshwj xeeb tshaj yog thaum khiav qis qis lossis thaum nrawm. Qhov no tej zaum yuav yog vim tsis raug lub cav tswj kev teeb tsa vim cov ntaub ntawv kub tsis txaus ntseeg.
• Kev khiav haujlwm tsis ruaj khov: Lub cav yuav khiav tsis zoo, tsis muaj zog, lossis tsis ruaj khov.
• Kev siv roj ntau ntxiv: Vim yog kev ua haujlwm tsis raug ntawm kev tswj hwm roj thiab qhov hluav taws xob los ntawm P0668 code, roj noj yuav nce ntxiv.
• Kev hloov pauv: Yog tias qhov teeb meem tshwm sim nrog Transmission Control Module (TCM), koj tuaj yeem ntsib teeb meem hloov lub zog, xws li ncua sij hawm lossis jerky hloov.

Cov tsos mob no tej zaum yuav tsis pom tseeb thiab yuav tshwm sim rau qhov sib txawv nyob ntawm qhov xwm txheej tshwj xeeb. Yog tias koj pom lub teeb pom kev teeb pom kev zoo lossis lwm yam tsos mob txawv txav, nws raug nquahu kom koj hu rau tus kws kho tsheb uas tsim nyog rau kev kuaj mob thiab daws teeb meem.

Yuav ua li cas kuaj tau tus lej txhaum P0668?

Cov kauj ruam hauv qab no raug pom zoo los kuaj xyuas DTC P0668:

1. Txheeb xyuas Lub Teeb Tsav Tsheb: Yog tias Lub Teeb Tsav Tsheb Teeb pom kev ntawm koj lub dashboard, nws yuav yog lub cim ntawm P0668. Txawm li cas los xij, yog tias lub teeb tsis tuaj, qhov no tsis txiav txim siab qhov teeb meem, vim tias tsis yog txhua lub tsheb tuaj yeem qhib lub teeb tam sim thaum kuaj pom qhov yuam kev.
2. Siv lub tshuab kuaj kab mob: Txuas lub tshuab kuaj kab mob mus rau OBD-II chaw nres nkoj ntawm koj lub tsheb. Lub scanner yuav nyeem cov lej teeb meem, suav nrog P0668, thiab muab cov ntaub ntawv hais txog lwm yam tsis muaj thiab cov sensors uas tuaj yeem pab kuaj mob.
3. Tshawb nrhiav cov lej yuam kev ntxiv: Qee lub sij hawm tus lej P0668 tuaj yeem nrog rau lwm cov lej yuam kev uas yuav muab cov ntaub ntawv ntau ntxiv txog qhov teeb meem. Txheeb xyuas lwm cov lej uas tuaj yeem sau npe hauv qhov system.
4. Txheeb xyuas cov kab hluav taws xob thiab kev sib txuas: Txheeb xyuas cov xaim txuas ntawm qhov ntsuas kub mus rau cov tswj module (ECM, TCM lossis PCM) rau kev puas tsuaj, corrosion lossis tawg. Xyuas kom tag nrho cov kev sib txuas muaj kev ruaj ntseg thiab tsis muaj oxidation.
5. Tshawb xyuas qhov ntsuas kub: Txheeb xyuas qhov xwm txheej thiab kev ua haujlwm ntawm qhov ntsuas kub ntsuas. Koj yuav tsum tau kuaj xyuas qhov ntsuas ntsuas ntawm qhov sib txawv ntawm qhov kub thiab txias siv lub multimeter.
6. Kev kuaj ntxiv thiab kev kuaj xyuas: Nyob ntawm seb hom tsheb tshwj xeeb thiab kev tswj hwm lub cav, cov kev ntsuas ntxiv yuav suav nrog kev ua haujlwm txias txias, roj siab, thiab lwm yam kev ntsuas uas yuav cuam tshuam rau lub cav lossis kis tau tus mob.
7. Tham nrog tus kws tshaj lij: Yog tias koj tsis paub meej txog koj qhov kev txawj ntse lossis kev paub hauv kev kuaj xyuas cov tshuab tsheb, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam rau kev kuaj mob kom ntxaws thiab daws teeb meem.

Kev kuaj mob yuam kev

Thaum kuaj pom DTC P0668, cov teeb meem hauv qab no yuav tshwm sim:

• Kev txiav txim qhov ua rau tsuas yog los ntawm qhov yuam kev: P0668 code qhia tias qhov kub thiab txias sensor Circuit Court voltage tsawg dhau, tab sis nws tsis muab cov ntaub ntawv hais txog qhov tshwj xeeb ntawm qhov teeb meem. Qhov kev ua yuam kev tuaj yeem tshwm sim los ntawm ntau yam, suav nrog lub faulty sensor, teeb meem hauv xov, lossis txawm tias qhov kev tswj tsis raug.
• Tsis quav ntsej lwm cov tsos mob thiab cov cim qhia: Qee qhov teeb meem cuam tshuam nrog tus lej P0668 tuaj yeem pom lawv tus kheej los ntawm lwm cov tsos mob, xws li poob lub zog, khiav tsis zoo, lossis teeb meem hloov. Kev tsis quav ntsej cov tsos mob no yuav ua rau cov ntaub ntawv kuaj mob tseem ceeb tsis tau.
• Faulty Cheebtsam hloov: Thaum kuaj pom teeb meem code P0668, nws yuav raug ntxias kom hloov lub ntsuas kub tam sim lossis lwm yam hauv lub cev. Txawm li cas los xij, qhov no yuav daws tsis tau qhov teeb meem yog tias qhov teeb meem nyob rau lwm qhov, xws li hauv cov xov hluav taws xob lossis kev tswj hwm module.
• Kev kuaj mob tsis raug thiab kho: Misdiagnosis tuaj yeem ua rau cov khoom tsis tsim nyog hloov lossis kho tsis raug, uas tuaj yeem raug nqi thiab siv sijhawm ntev.
• Tsis muaj kev pab tshaj lij: Qee qhov teeb meem cuam tshuam nrog P0668 code tuaj yeem nyuaj rau kev kuaj mob thiab kho. Tsis muaj kev paub lossis kev txawj ntse yuav ua rau tsis muaj txiaj ntsig lossis ua tsis raug. Hauv cov xwm txheej zoo li no, nws raug nquahu kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam kev pabcuam.

Txhawm rau zam cov kev ua yuam kev no, nws yog ib qho tseem ceeb uas yuav tau mus rau qhov kev kuaj mob kom zoo, suav nrog txhua yam muaj tshwm sim thiab cov ntaub ntawv.

Txoj cai txhaum loj npaum li cas? P0668?

Teeb meem code P0668 tuaj yeem loj heev vim tias nws qhia txog qhov teeb meem ntawm qhov ntsuas kub ntawm qhov ntsuas kub, uas tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub cav lossis kev tswj kev sib kis. Cov txiaj ntsig tau los ntawm P0668 chaws yuav suav nrog:

• Lub zog tsis muaj zog: Cov ntaub ntawv kub tsis raug tuaj yeem ua rau qhov tsis raug ntawm lub cav tswj kev teeb tsa, uas yuav ua rau lub zog poob.
• Kev siv roj ntau ntxiv: Kev tswj roj thiab hluav taws xob tsis raug vim cov ntaub ntawv kub tsis raug yuav ua rau muaj roj ntau ntxiv.
• Cav puas: Yog hais tias lub cav tsis txias txaus los yog overheated, tej zaum yuav muaj teeb meem loj xws li kev puas tsuaj rau lub tog raj kheej taub hau, lub tog raj kheej taub hau gaskets, piston rings, thiab lwm yam.
• Kev puas tsuaj: Yog tias qhov teeb meem tseem cuam tshuam rau kev tswj kev sib kis, cov ntaub ntawv kub tsis raug tuaj yeem ua rau lub iav hloov tsis raug thiab tseem muaj kev puas tsuaj rau kev sib kis.

Txawm hais tias tus lej P0668 tuaj yeem suav tias yog qhov hnyav, nws yog ib qho tseem ceeb uas yuav tau xav txog nws hauv cov ntsiab lus ntawm lwm cov tsos mob thiab yam tseem ceeb. Qee qhov xwm txheej, nws yuav tshwm sim los ntawm ib ntus glitch lossis me me uas tuaj yeem kho tau yooj yim.

Kev kho dab tsi yuav pab tshem tawm cov cai? P0668?

Kev daws teeb meem P0668 teeb meem code yuav xav tau ntau yam ua tau nyob ntawm seb qhov ua rau muaj teeb meem. Qee txoj kev kho ib txwm:

• Hloov qhov ntsuas kub: Yog hais tias qhov yuam kev yog tshwm sim los ntawm faulty kub sensor, nws yuav tsum tau hloov. Nws raug nquahu kom siv cov khoom qub qub lossis cov khoom zoo sib xws kom tsis txhob muaj teeb meem ntxiv.
• Kev tshuaj xyuas thiab kho cov kab hluav taws xob: Yog tias qhov ua yuam kev yog vim muaj kev puas tsuaj los yog tawg thaiv, nws yog ib qho tsim nyog yuav tsum tau kuaj xyuas thiab, yog tias tsim nyog, kho cov xaim, kom ntseeg tau tias muaj kev sib txuas zoo ntawm qhov ntsuas kub thiab cov tswj module.
• Diagnostics thiab hloov cov tswj module: Yog tias tag nrho cov txheej txheem ua haujlwm tau zoo tab sis P0668 tseem tshwm sim, qhov ua rau tuaj yeem yog qhov kev tswj tsis raug (ECM, TCM lossis PCM). Hauv qhov no, kev kuaj mob yuav tsum tau txiav txim siab qhov ua haujlwm tsis zoo thiab hloov lossis kho cov tswj module.
• Tshawb xyuas thiab kho cov teeb meem ntawm qhov system txias: Yog tias qhov ua rau qhov ua yuam kev yog teeb meem ntawm qhov kub thiab txias ntawm lub cav lossis kev sib kis, kev kuaj mob ntxiv ntawm cov cua txias yuav tsum tau ua. Qhov no yuav suav nrog kev kuaj xyuas cov dej txias, qhov ntsuas kub, qhov dej xau, lossis teeb meem twj tso kua mis.
• Programming thiab software hloov tshiab: Qee zaum, qhov ua rau ntawm P0668 code tej zaum yuav muaj teeb meem nrog kev tswj hwm module software. Kev hloov kho lossis reprogramming lub software yuav pab daws qhov teeb meem.

Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias nws raug pom zoo kom koj hu rau tus kws kho tsheb tsim nyog lossis chaw pabcuam kom raug txiav txim siab thiab kho qhov ua rau ntawm P0668 code, tshwj xeeb tshaj yog tias koj tsis muaj kev paub ua haujlwm nrog cov tshuab tsheb. Kev kho lossis kev kuaj mob tsis raug yuav ua rau muaj teeb meem ntxiv lossis kev puas tsuaj.

P0668 Cav Code yog dab tsi [Quick Guide]

P0668 - Cov ntaub ntawv tshwj xeeb ntawm hom

Teeb meem code P0668 tuaj yeem tshwm sim rau ntau lub tsheb, tab sis nws lub ntsiab lus thiab qhov ua tau tuaj yeem sib txawv me ntsis nyob ntawm qhov tshwj xeeb tsim thiab qauv, cov npe ntawm ntau lub tsheb nrov nrog cov lus piav qhia luv luv ntawm P0668 teeb meem code:

• Toyota / Lexus: Tsawg voltage nyob rau hauv lub cav kub sensor Circuit Court.
• Honda/Acura: PCM / ECM / TCM sab hauv kub sensor "A" Circuit Court qis.
• Ford: Tsawg voltage nyob rau hauv lub cav los yog kis tau tus mob kub sensor Circuit Court.
• Chevrolet / GMC: Tsawg voltage nyob rau hauv lub cav kub sensor Circuit Court.
• BMW/Mini: PCM / ECM / TCM sab hauv kub sensor "A" Circuit Court qis.
• Mercedes-Benz: Tsawg voltage nyob rau hauv lub cav los yog kis tau tus mob kub sensor Circuit Court.
• Volkswagen/Audi: Tsawg voltage nyob rau hauv lub cav kub sensor Circuit Court.
• Nissan / Infiniti: PCM / ECM / TCM sab hauv kub sensor "A" Circuit Court qis.

Qhov no tsuas yog ib qho piv txwv me me xwb, thiab txhua lub tsheb hom yuav muaj nws tus kheej cov ntsiab lus tshwj xeeb rau P0668 code. Kom paub meej ntxiv, nws raug nquahu kom koj sab laj cov ntaub ntawv tshwj xeeb, phau ntawv qhia kev pabcuam, lossis cov neeg ua haujlwm tsim nyog rau koj lub tsheb tshwj xeeb tsim thiab qauv.