Causes and Fixes U0101 Code: Lost Communication with TCM (Transmission Control Module)

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  • เผยแพร่เมื่อ 18 ต.ค. 2024

ความคิดเห็น • 98

  • @Jim-re3sr
    @Jim-re3sr 9 หลายเดือนก่อน +7

    2006 4.6 explorer. Failing coil pack interfered with pcm to tcm. Harness travels next to coil. Replaced coil pack solved the issue. Great video

  • @adamkelly6264
    @adamkelly6264 4 หลายเดือนก่อน +17

    mate I just wanted to let you know these three videos saved me from pushing my amarok into the f*cking sea. Thanks!

    • @shantwil
      @shantwil 2 หลายเดือนก่อน

      Lolol!!😂😂😂

  • @fred21679
    @fred21679 หลายเดือนก่อน +1

    2019 GMC Elevation...My truck just wouldn't start and after a jump the check engine light came on and was throwing this code. I didn't have any problems before, and it wouldn't hold a charge after.
    I put a new battery in it, and it took care of my problem. Check engine light went off and it went back to normal.
    I know this won't help everyone, but it may help someone! Good luck!

  • @stevelatronica6025
    @stevelatronica6025 8 หลายเดือนก่อน +1

    after a rebuild on the 4L60E transmission, its now throwing two codes P0826 and U0140. Any ideas? Thanks for the awesome videos!

  • @VegasModel
    @VegasModel 9 หลายเดือนก่อน +3

    Hey I want you to know I really appreciate this video I've been trouble shooting my TCM for months after all this removing soldering etc and fixing it myself it would only be temporary.. but now I know why. Thank you.

  • @Elcapulove
    @Elcapulove 7 หลายเดือนก่อน +4

    Good afternoon family and good health to everyone especially MENTAL. Thank you very much. 🙏

  • @Vtoq
    @Vtoq 7 หลายเดือนก่อน +1

    2014 Chevrolet Captiva - Check engine light would occasionally come on and eventually received U0101 code. Still looking for solution, most likely think it is a blow fuse since battery was just replaced and issue is still ongoing even before changing the battery.

    • @incith
      @incith 4 หลายเดือนก่อน

      Look at the fuses then?

  • @TyrellDavis-ye3rn
    @TyrellDavis-ye3rn 21 วันที่ผ่านมา

    Hey got a 2013 Chrysler town and country changed the tcm in the tranny but still in limp mode and still showing lost communication.. all fuses are good .. are there any other solenoids or sensors there that would cause This ?

  • @Sebastian-dx2xg
    @Sebastian-dx2xg 9 หลายเดือนก่อน +2

    I’m getting a parasitic draw from my TCM-BATT fuse. It’s draining my battery. But I’m not experiencing any shifting problems

  • @danamcintyre3565
    @danamcintyre3565 ปีที่แล้ว +3

    For starters that one of the biggest reasons I don't work on these late model cars, unless you have been schooled on it or have just enough knowledge to understand what does what, you better off taking it to a professional to have it fixed !

  • @newprep3661
    @newprep3661 5 หลายเดือนก่อน +2

    2013 impala. Very low power, not shifting to high gear, random electrical issuesfilters and fluids are fine. Reving to 3000 rpms at startup, any thoughts?

    • @incith
      @incith 4 หลายเดือนก่อน

      "random electrical issues"

  • @sr25jd
    @sr25jd 6 หลายเดือนก่อน

    Had the battery out of a 2011 Lin Navigator for about 1 year replaced started and then the anti theft system the person that worked on the Lin prior had removed fuses I replaced those now the gear shifter won’t come out of park I replaced the brake light switch and still won’t come out of park

  • @Linorodarteofficial
    @Linorodarteofficial 2 หลายเดือนก่อน

    HVAC MECHANIC I have a 2016 Jeep Grand Cherokee Srt with this very same code have little to some knowledge on mechanics, went uder the hood to find out my fuse #f60 was blown switched it out with a new one and the new one blows as soon as it touches the terminals. May you please point me in the right direction as this is my only means of transportation at the moment to get to and from work. Thanks in advance 🙏🏻

    • @HVAC_Mechanic
      @HVAC_Mechanic  2 หลายเดือนก่อน +1

      There is likely a wiring issue, which can be hard to diagnose. You can check for any obvious signs of wire damage otherwise a wiring schematic for the vehicle and a meter are needed to diagnose it.

  • @tammi-u3s
    @tammi-u3s หลายเดือนก่อน +1

    I just replaced the battery and alternator on a 2013 Kia Soul 1.6l and now it won't shift out of 1st. Any ideas??

  • @Alexmanzophxsuns
    @Alexmanzophxsuns 3 หลายเดือนก่อน +1

    I have a jeep 2006 it showing transmission over temp but I waiting for my new computer to come hopes it works

  • @djfazher
    @djfazher 11 หลายเดือนก่อน +2

    Thank you for the information!

  • @kwamepaul4418
    @kwamepaul4418 6 หลายเดือนก่อน +2

    can u0101 and u0402 DTC be the transmission failure. its in limp mode in forward gears and reverse takes about 80% pedal pressure to move.

    • @HVAC_Mechanic
      @HVAC_Mechanic  6 หลายเดือนก่อน

      It is possible, but more likely, there is a power or wiring issue or an issue with the TCM.

  • @xPlzid
    @xPlzid 8 หลายเดือนก่อน

    So my headlights low beam was flickering when this happened, fixed some shorts, there was a blown fuse that I have now fixed. Can’t find anymore shorts and the grounds on my car have been cleaned and everything. Have had water leak in to the passenger side where the ax blower motor is at and where the ecm seems to be located at. Will be replacing ecm and inspecting harness to make sure but this has really been a nightmare on my already pos g35

    • @americanpatriot5836
      @americanpatriot5836 4 หลายเดือนก่อน

      I have a 2002 infiniti i35 with driver and passenger side floor board soaked and can’t find where its coming from and also a hard shift into 2nd gear sometimes.

  • @EARTHKEENING
    @EARTHKEENING 8 วันที่ผ่านมา +2

    My scanner show no communication at all , I put it on another car and worked good , what possibly cause that I have crank no start .

    • @HVAC_Mechanic
      @HVAC_Mechanic  7 วันที่ผ่านมา

      Check for any blown fuses related to the fuel pump, sensors, or ignition. Basically, the first things to check are if the engine is getting gas and spark.

    • @EARTHKEENING
      @EARTHKEENING 7 วันที่ผ่านมา

      @@HVAC_Mechanic I'm getting fuel and spark and throttle working fine , fuses are good but I didn't check releys

  • @d-blareo8018
    @d-blareo8018 ปีที่แล้ว +1

    I had an APR ecu flash on Thursday on a 2012 Audi A7. I drove the car home fine. I put the car cover on, and let it sit until Saturday. I got in it and drove down the street, stopped to check the mail, and it wouldn't go back into gear. The battery was replaced by the previous owner in November of last year, the fuse for the transmission is good, and the car starts fine. I used by BlueDriver and got the U0101 code along with 35 other codes. All of the codes cleared except the U0101. Any idea if the ECU upgrade may have caused the TCU to fail? Do you know if the TCM is disconnected during an ECU flash?

    • @mikey13b
      @mikey13b 3 หลายเดือนก่อน

      Did you end up finding the cause of the fault code?

  • @rafyperalta9246
    @rafyperalta9246 ปีที่แล้ว +3

    Thanks I was able to solve the problem with this video

  • @asaadahmed1738
    @asaadahmed1738 21 วันที่ผ่านมา +1

    Useful ..thank you❤

  • @henm4975
    @henm4975 3 หลายเดือนก่อน +1

    CURRENTLY dealing with this on my 2014 3.6 impala, it fuking sucks......i have no way of diagnosing but by checking the wires for resistance/continuity.....every module, every wire, every connector.....so far all my 2500, 2501 circuits are good....i hope its an easy wire fix. i lost 6k on a transmission shop that just started swaping the most expensive prts hoping for the best, next thing you know, i get U0101 for the 3rd time.....they say dont bring it back. had they done their job and proper diagnosis I coud be working.

  • @davepatt6018
    @davepatt6018 11 หลายเดือนก่อน +2

    Thank you for the info

  • @MegaNeet7
    @MegaNeet7 5 หลายเดือนก่อน +1

    I have an issue with a Chevy Cruz like this I can reverse at full speed, but when I go into gear, it starts slow. I’ve actually moved the car because I had to move and I didn’t wanna pay a towing service and I drove it 6 miles with a friend in front and a friend and back and once I got up to speed about second third, it was all right. I didn’t try to push it anymore than 48 miles an hour, but all in all I’m just trying to figure out what direction to go with this because I’ve replaced coil packs. I’ve actually replaced the engine catalytic converter radiator almost everything on a car so I’m just kind of lost.

    • @HVAC_Mechanic
      @HVAC_Mechanic  5 หลายเดือนก่อน

      It sounds like it is in Limp Mode. There should be codes that point to the issue. If the code is a U0101, then it can be hard to troubleshoot.

    • @MegaNeet7
      @MegaNeet7 5 หลายเดือนก่อน

      @@HVAC_Mechanic that’s exactly it and I found in the front end of my transmission that’s where the Tcm i’m not the most knowledgeable on cars, but when I called a transmission shop, the guy was trying to tell me that mines was inside. My transmission wouldn’t that technically mean it’s mounted on the outside legit like behind my radiator fan On the driver side

    • @HVAC_Mechanic
      @HVAC_Mechanic  5 หลายเดือนก่อน

      The TCM can be located inside the transmission and be built into the valve body. If you think it is a computer issue, before replacing it, I would be sure to check all the wiring, fuses, and be sure the alternator is charging correctly. Like I said though, this code can be hard to fix.

    • @MegaNeet7
      @MegaNeet7 2 หลายเดือนก่อน

      @@HVAC_Mechanic boss went and got myself a Kaykay five 2025. I still have the Chevy paid it off. Had the transmission place and send it to a specialist but even he couldn’t get it to pair with the engine again but then when I got it home and had it towed I actually was able to drive it around for a bit full power shiftingmanually and automatic because I have the hybrid shifter but all in all after a while and went back into it so I’m starting to think it’s literally a wiring issue but I will deal with that down the road when it comes

  • @beckhamsfamilyjourney
    @beckhamsfamilyjourney 9 หลายเดือนก่อน

    2013 chevy silverado 3500hd. How do you rest the TCM? I did the " remove the battery connection for hr" and nothing. It's not dirty or oily? All fuse are good. The dealership said I had to drive it in for them to look at it lol SHE DOESN'T MOVE FOOL! (The guy hug up on me). So is there a do it yourself? I know getting a new one it has to be programmed to the truck, so I still have to take it somewhere 😅

    • @beckhamsfamilyjourney
      @beckhamsfamilyjourney 8 หลายเดือนก่อน

      Also it has a sweet but nasty smell to it

    • @mikey13b
      @mikey13b 3 หลายเดือนก่อน +1

      did u end up getting this fixed?

    • @mikey13b
      @mikey13b 3 หลายเดือนก่อน

      @@beckhamsfamilyjourney if so where was the issue?

    • @beckhamsfamilyjourney
      @beckhamsfamilyjourney 3 หลายเดือนก่อน

      @@mikey13b the Circuit board fried

  • @GodessIsabelRaina
    @GodessIsabelRaina 7 หลายเดือนก่อน

    I got a new battery. could it be that they put it in incorrectly❓️🤔
    I had codes read on my vehicle and that one popped up. The only lights that I've been dealing with is engine power is reduced. I had my throttle body cleaned by Chevrolet and it's running even crappier so I've decided to figure out these codes for myself🙄

    • @rscrevolutionpking7143
      @rscrevolutionpking7143 7 หลายเดือนก่อน

      Nah pretty much no way to put a battery on incorrectly, negative to negative, positive to positive, pre sure if you put the negative to positve and same with postive to negative all your wires just fry and youll definitely know if it does, theyll melt or something, dunno never been dumb enough to do it, just seen videos 😂 but check your spark plugs and coils, see hkw they look, if theyre crusty, bunch of oil gotten to them then could need new spark plugs and/or coils, had a car that went into limp mode due to that, changed them and ran normal, also check for any air leaking from the intake hose on the throttlebody, maybe leaking and not getting enough air if its runnibg worse since theyve cleaned it, id tell ya to check the throttlebody but unsure how mechanically minded you are and got to be careful with that as they go directly to your engine and the butterfly flap inside it can sometimes snap off into it if youre not careful

    • @rscrevolutionpking7143
      @rscrevolutionpking7143 7 หลายเดือนก่อน

      Is it idling up and down alot? Not staying consistant in revs? Like goto 500, end up stalling or jump to 2000, then 1000, then 1500 etc etc

  • @felixpolkey8449
    @felixpolkey8449 9 หลายเดือนก่อน

    Can you tell me where the tcm is located in a 2014 Toyota Camry SE ,4cyl

  • @donaldctwittyjr
    @donaldctwittyjr หลายเดือนก่อน

    Where is the TCM located on a 2018 suburban lt?

  • @Habbasio
    @Habbasio หลายเดือนก่อน

    HI SIR I HAVE 2012 CHEAVY EXPRESS VAN 3500. TCM FUSE WAS KEEP BLOWING I HAD CHANGE T C M IN SIDE CHANGED CONDUTOR PLATE.NOW CAN PROGRAMM KEEP COME UP U0101. I CHANGED E CM CHECKED WIREING ALL THAT.ONE GETTING 60 OHM.DLC TCM AND ABS. ENGINE 6.0. 6 SPPED T C M( ZF) I GOT DIAGRAMM. OBD. I CAN NOT FIND ANY PROBLEM 2 MONTHS.PLS HELP GIVE SOME HINT. WHRER TO LOOK. .ON LINE GUYS CAN NOT GM TECH CAME TRY TO PROGRAMME.CAN DO ANY THINK. MAY SEND YOU VIN? I AM SHOP HITECH GERMAN AUTO. NEVER DID GM BEFORE.

  • @felipeisacchar2957
    @felipeisacchar2957 10 หลายเดือนก่อน +1

    Great información tanks

  • @jimmybetters9869
    @jimmybetters9869 หลายเดือนก่อน

    2004 Saturn will crank but the rpm keep moving while I’m in park what do that mean

  • @Joe-rv3ud
    @Joe-rv3ud 9 หลายเดือนก่อน +1

    Battery died one day and after getting it replaced it’s doing this. Can i narrow it down with that?

    • @henm4975
      @henm4975 3 หลายเดือนก่อน

      maybe it wasnt the battery then

  • @weerebuildz4427
    @weerebuildz4427 4 หลายเดือนก่อน

    Hey need some help I am rebuilding a 2018 Audi S5 for my channel and i am getting the same fault codes but still can not find the reason to get the car to start and need your help.

  • @Habbasio
    @Habbasio หลายเดือนก่อน

    HI SI I CHECK ALL WIRING ONLY PROBLEM I SEE 103 GROUND GOSE TCM AND B C M. GROUND WHITE &BLACK.WIRE ..TRUNED TO 00.0 ON POWER PROB..GROUND GOWAY WHEN TURN IGNITION ON PLS HELP OUT WHAT SHOULD I DO I CHECK NET WORK GOOD.60&120.HOM MAY RUN GROUND BY BATTERY TO TCM? AND SEE IF WORK OUT.. O PLSFORGIVE MY ENGLISH VERY POOR I M GERMAN

  • @rsmith317
    @rsmith317 2 หลายเดือนก่อน +2

    I currently have this U0101 code on my 2014 Chevy Malibu. When the TCM is down, the car is stuck in third gear (limp mode) and gear shift is not illuminated. When I drive 20-30 minutes in limp mode , the TCM does come back and stays as long as I keep driving. When I shut the engine off and wait about 10 minutes and turn engine back on, the TCM fails again, so it's an intermittent issue. Chevy dealership has no answers after I paid them 224 dollars in diagnostic fees. They wanted an additional $1300 to further diagnose it and obviously I declined that, so now I'm stuck with a TCM that goes in and out. Very frustrating. I have taken that TCM connector off and on so many times that I've lost count. Nothing is working.

    • @shamilbabayev8856
      @shamilbabayev8856 2 หลายเดือนก่อน

      Hi. I have the same problem with my Cruze2014. Could you fix the problem?

    • @figgiefigueroa7372
      @figgiefigueroa7372 2 หลายเดือนก่อน

      Buy one at the junkyard

    • @DJJamOfThaDose
      @DJJamOfThaDose หลายเดือนก่อน

      Check for bad fuse box, had 2 I found on two different years 2012 & 2010. Found break in the circuit board under the fuses, there is a lot of videos on it.

  • @mariachiwaula7140
    @mariachiwaula7140 ปีที่แล้ว +1

    My VW Polo has U0101 and U111100, no gear display, shifter won't move out of park. Where can I check

    • @lovisharora7250
      @lovisharora7250 11 หลายเดือนก่อน

      Take it to the mechanic

  • @SaeedAfrooz7
    @SaeedAfrooz7 4 หลายเดือนก่อน

    Hi
    My car have problem with tcm
    When I start my car it’s ok for 1 hour and after that the gear only shows (p-n) not go to the (D-R) when I turn of my car and turn on its ok for one time change gear after that same issues Will appear

    • @HVAC_Mechanic
      @HVAC_Mechanic  4 หลายเดือนก่อน

      It needs to be troubleshooted to know the cause, but often, when there is no issue when starting, but after the engine gets hot, there is an issue. The TCM has a bad contact or solder joint on the board. This is just a guess, but I have seen it before.

    • @SaeedAfrooz7
      @SaeedAfrooz7 3 หลายเดือนก่อน

      I changed the tcm fuse , but the problem is still there , what may cause ?
      There is no issues code to know what’s wrong with the car no check light !
      After one horse ride the problem coms and gets worse , Every think ok the gearbox is so soft , but when gets hot when I want to change the gear it’s only go to (n-p) when I turn of it ok only for one more time

  • @sirthomas5220
    @sirthomas5220 10 หลายเดือนก่อน

    Dealing with this issue on a 2016 impala…. It comes and goes…. Had the wires replaced and it worked for 8 months…. Problem is back and I’m trying to avoid a 3k fix

    • @williammerrow
      @williammerrow 6 หลายเดือนก่อน

      I've seen a fuse block have bad connection. Check from the back side connections to the top side connections.

  • @cj599
    @cj599 2 หลายเดือนก่อน

    2014 sonic im getting a u0101 its a 5 speed manual ???

  • @Jeepche
    @Jeepche 3 หลายเดือนก่อน

    Hi, can anyone please help. I've got W212 2013, U010 code pops up every now and then with check engine light. The code goes away on its own. From past 2-3 days the code is popping more frequently. Whenever the codes pop up the car Doesn't shift up, rear camera doesn't work, when pushing the lever to shift gear from park to drive takes a strong jerk and the car only drives on 1st gear. The cars Ignition is fine amidst these AC sometimes stops working. Battery is new car start normally without any hesitation. Any suggestions on what to be done??

  • @Renegar87
    @Renegar87 4 หลายเดือนก่อน +1

    Great video

  • @28samz
    @28samz 6 หลายเดือนก่อน

    What about U0122 Lost Communication With Vehicle Dynamics Control Module (Corvette)

  • @constantinmilitaru
    @constantinmilitaru 9 หลายเดือนก่อน +15

    Replaced the TCM and it’s a no start no crank. The new TCM is bad… 13 pins connection oil coming out… god… also don’t forget to disconnect the battery…

    • @aaronj08ar
      @aaronj08ar 8 หลายเดือนก่อน

      Oil coming out of there is fine. All those wires terminate in the oil bath, they're not shorting out at the connector because of the oil.

    • @supermomxt
      @supermomxt 7 หลายเดือนก่อน +1

      You have to have it programmed with your vin number at a dealership or a shop that can if you put a new one in.

    • @MechaniclifeJDM
      @MechaniclifeJDM 7 หลายเดือนก่อน +5

      @@aaronj08arVERY BAD ADVICE

    • @moenycn6c
      @moenycn6c 7 หลายเดือนก่อน

      I have the same issue I changed a new tcm and the car no crank no start

    • @SaulPaez-ed7go
      @SaulPaez-ed7go 6 หลายเดือนก่อน

      I change the tcm but i have c0100 and p0722 codes do i need to reprogram? Because with mi old tcm i don't have that codes

  • @zlatonicbuzz
    @zlatonicbuzz 29 วันที่ผ่านมา

    2014 Chevy Malibu this code pops up but it also says service power steering and my locks in my car go nuts like a mini gun going off, I can reset the tcm and it’ll run fine after but 2 weeks go bye and it’s back to fucking up

  • @49dsa505
    @49dsa505 ปีที่แล้ว +1

    Thank you for the info!

  • @juanojeda8069
    @juanojeda8069 8 หลายเดือนก่อน +1

    Mi car was the battery do not hold the charge because winter and storage car. Mercedes GLA 250

  • @MrTane41
    @MrTane41 หลายเดือนก่อน

    My 2010 Chevy Tahoe is not reading any codes whatsoever, but it doesn’t want to go and drive reverse or do anything let alone As a better off that I just take it to a shop

  • @philswift791
    @philswift791 3 หลายเดือนก่อน

    A cheap signal generator is an amazing tool to use.

  • @treytonmiller8407
    @treytonmiller8407 11 หลายเดือนก่อน

    My 2022 dodge charger lights won't illuminate on the shifter, won't start and has the service transmission code

    • @lovisharora7250
      @lovisharora7250 11 หลายเดือนก่อน

      should be under warranty, take it to the dealer

  • @LatifKassim-sv2uk
    @LatifKassim-sv2uk 11 หลายเดือนก่อน

    Hello

  • @EdAguirre-zf6lg
    @EdAguirre-zf6lg 5 หลายเดือนก่อน

    Ok

  • @НуртилеуКойчибаев
    @НуртилеуКойчибаев 7 หลายเดือนก่อน

    Негылдеді мынау

  • @GuadalupeMartinez-sl2ee
    @GuadalupeMartinez-sl2ee 10 หลายเดือนก่อน

    I have this code on my 08 jeep grand Cherokee nobody can figure it out

  • @freddyg9026
    @freddyg9026 7 หลายเดือนก่อน +1

    why do you talk so slow?

    • @curyman000
      @curyman000 6 หลายเดือนก่อน +1

      Why do you talk fast?

    • @deadly1360
      @deadly1360 6 หลายเดือนก่อน

      He doesn't, stop doing bumps and the world might slow down buddy. 👃❄️

  • @CodyPing
    @CodyPing 27 วันที่ผ่านมา

    also the charging system for this car has wild fluctuations from 12.2v - 14.7v your alternator is not the problem this is normal

  • @SaeedAfrooz7
    @SaeedAfrooz7 4 หลายเดือนก่อน

    Hi
    My car have problem with tcm
    When I start my car it’s ok for 1 hour and after that the gear only shows (p-n) not go to the (D-R) when I turn of my car and turn on its ok for one time change gear after that same issues Will appear

    • @DW-ji6is
      @DW-ji6is หลายเดือนก่อน

      Did you ever get this fixed? If so what was the issue! I have a 2014 Chevy equinox and it sounds like the same issue