Mazda 3 TCM (2006 - 2014) Transmission Control Module Location, Removal & Repair by UpFix

[@joshliu4774]

I changed my TCM today, it did not work. Still check engine light on, AT light on. Very shaking when shifting gears, and never shift over 3rd.

[@davidchavez3510]

Happend to . Me . Have a mechanic pull your codes . Guarentee it's your Speed Sensor for the transmission .

[@Thoy28]

Josh did you try to drain the transmission fluid... it's help my car... before AT light came on and it wouldn't go into gear.... don't use Lucas anti slip make it worst...I have to drain it back out.

[@upfixauto]

Hey Josh, are you still having issues with your vehicle shaking when shifting gears or did you get that resolved. Also, see comment bellow of changing the fluid. Not sure if that would help, could be worth a shot. UpFix.com can always repair your unit or send you one that is ready to install and is plug-and-play www.upfix.com/product/mazda-3-2006-2014-tcm-tcu-transmission-control-module-exchange/

[@timfavorites]

@@Thoy28 Did you only change the transmission fluid which resolve your AT light illuminated issue?

[@Thoy28]

@@timfavorites yeah I drain it twice ... it's help AT light stopped poping up....I would recommend changing the transmission fluid filter ... July 10, 2021 i changed my transmission fluid filter...My 2012 Mazda 3 skyactiv is running good great...no more problems... easy do it yourself job... it's just filter clogged up.... here is the part#FZ01-21-500 if you have the same model... dealership called STRAINER... others parts stores keep giving me wrong part.

[@fillistercarson7571]

Took mine to the mazda dealership. They confirmed it's the TCM. They quoted me $6763.00 to replace the whole transmission. North Park Mazda San Antonio TX. Dude thx so much for making this video fr.

[@upfixauto]

That is a crazy quote, most dealerships don't know that it is just the TCM that is faulty.

[@evildax6815]

@@upfixauto dont you need it to be programmed by the delearship after changing it ?

[@upfixauto]

@@evildax6815 No programming is needed if you have your original TCM repaired, because it is already programmed to your vehicle. We also update your TCM to the latest firmware. www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@kiwishbj1]

Those dealership are thugs.!!! So did you get the TCM repaired.? And how is it going so far?

[@m_3766]

They are thieves

[@akaitv6606]

Correct mate these engines run at 98-102 deg Celsius, the trans oil is also really hot , a neat trick I do is intercept the thick black wire on cooling fan motor and run a jumper to my own electronic thermostat , I switch my fans on at 78 deg C and back off at 74 c , also fit a separate cooler for the auto, it now should last forever . So much under bonnet heat destroys rubber and electrical components.

[@scotttaylor7430]

You guys are the best! Got my TCM back from you and just reinstalled today (this vid helped!) and transmission is back working! Thank you so much! For those researching similar issues and how to fix, I had check engine and AT lights on, only a U0101 code, hard shifting into Drive and Reverse, car was stuck in one gear (apparently 3rd) limp mode, was able to safely drive the 30 miles home from work in limp mode keeping it under ~65mph, my 2011 Mazda 3 had only 96k miles when it failed on me 2 weeks ago as I went to leave work, no early warning signs, everything was fine on my way to work, suddenly did not work when I went to leave. Searched a bit, found you guys, waited for a warm enough day to remove the battery and TCM, then sent it in to UPFIX, had it back a week later, and good to go! UpFix and comin through like champions! Keep up the great work, guys!

[@upfixauto]

Thank you so much!!!

[@manuelfuentesguerra88]

How much did you spend fixing your tcm?

[@sleepydog33]

I did exactly what you did in the video and it worked for me. I used my vacuum to blow on the dust. Thank you for the video!

[@upfixauto]

Glad you got it working. Sometimes the simplest solution is the best!

[@VeronicaRodriguez-bu6nd]

My 2007 Mazda3 tcm failed last year. Took it to dealer and they quoted me around $1500 to fix. They later called me while they still had my car and said it was still covered under P warranty? My car at this point had about 107k miles on it. They ended up replacing it for free but told me that the motor mount right above it was worn out & damaged & when it is, it can cause the tcm to get damaged due to hitting it? I asked if they could place the module in a different location but they said it would void any warranty & was specified to go in the location it is. Given I didn’t have to pay for it I didn’t push it. I did have them replace then motor mount above tcm since they were already in there. Never the less they charged a lot for that but I still saved money on the tcm. When I asked what warranty it fell under they just said p warranty, I didn’t question it further in case they reversed their decision lol but until this day I am not sure what they meant. Maybe powertrain warranty?

[@MrLougarou1000]

Other videos do not show you where the part is. I love the way you zoomed into the area and found the part instead of starting the video already underneath the transmission. I have a better idea of what I'm doing now. Ty

[@upfixauto]

I am glad that you found the video very useful. Thank you for your feedback!

[@245artist]

This is a very helpful video, showing how to remove the battery housing to access the TCM will help speed things up!

[@upfixauto]

Glad it helped

[@mdnite2941]

I disconnected my battery for 2 hours then hooked the battery back up now everything is working fine. For how long I don’t know! 👍💀

[@calvin3688]

Just got my part from you today and installed it within 30 minutes thanks to this video 🙏🏾

[@upfixauto]

Happy to hear that we can be of service to you. Thank you for your business 🙏

[@MissJojo7682]

What about the 2004 Mazda 3? Is the TCM located in a different place? Did exactly what you said in this video, and my TCM is not in that location. I've read many different things about it on Google, such as the 2004 Mazda 3 doesn't have a standalone TCM. It says that it's integrated into the PCM. I've also read to check behind the passenger side kick panel, above the ECU? I'm very confused now because I cannot seem to find its location, and all I'm finding online is conflicting information.

[@upfixauto]

If it is not there, then your vehicle does not have TCM and it's built into the transmission.

[@Roottech25]

do you think is ok to zip tie the TCU to the brake lines? what if the TCU gets hot and burn the line and starts leaking?

[@upfixauto]

The only reason to relocate the TCU is because the transmission gets hot and original location of the TCU is on top of the transmission. The TCU will not heat up.

[@davidchavez3510]

I just replaced my TCM. Bought a brand new one from Mazda was having all the same symptoms with 06 Mazda 3 . 2.3 . After about two hours of driving the car kicked into limp mode and the check engine light along with AT was on again I could have drove off the road but I didn't. Instead I took to my uncle's machine and he ran the codes he knew that # of the code right away. Long story short I had to replace my Speed sensor on the transmission... nothing was wrong with my TCM I bought.. but I have the new one in there anyways. But yeah if your having this issue have your Mazda codes check 1st. ..

[@upfixauto]

David when you scanned it with a scanner, what code number did you get for the transmission speed sensor?

[@araoyeabiodun24]

How did u get code?

[@araoyeabiodun24]

How did u get code?

[@hasbanahmed7471]

At least you guys have good machenic and garages aswell Here in africa i m looking for TCM since last 5 months and i m failed 😢

[@SupaHogg]

I've got a P0841 and P0732 transmission code for a 2007 Mazda 2 2.3. Should I change all the solenoids out (P0732)? Where's the location for the transmission fluid pressure switch (P0841)?

[@ferhatsirin506]

Thank you very much. I want to ask you something. My vehicle is a 2006 model 1.6 automatic transmission Mazda 3. Unfortunately, I cannot find the TCM in my vehicle. Where do you think it could be?

[@upfixauto]

It's possible that your vehicle might not be equipped with a TCM, but rather, the PCM controls both the engine and transmission. If you're having TCM related issues, let us know what those codes/issues are.

[@ferhatsirin506]

@@upfixauto I live in Turkey. My vehicle's AT light came on 2 months ago. When we looked with the obd2 device, we saw the p0715 error code. The master said that this was caused by the speed sensor. Even though it was changed 3 times, there was no improvement. I learned from the internet that TCM can cause this problem. But unfortunately I couldn't find this part in the car. Another authorized Mazda service said that the turbine had to be replaced without checking anything in the car and that it was very expensive. Unfortunately, repairmen in Turkey always prefer the easiest and most costly methods. There are also problems with gear shifting and I have read that these problems can be solved by resetting the tcm. What do you think I should do? By the way, thank you for your interest.

[@henzik]

I know this video is old, but our 2008 Mazda 3 basically bucks in 5th gear with a loud bang, then revs the engine like it is not in gear, then just fixes itself at the AT light flashes on the off. Scares the shit out of us. Would that be a TCM issue? I do have check engine light on due to vacuum leak, so I am not sure if it is related to that. The AT light does not stay on. Any ideas?

[@gcertain]

Dude you just described the exact same issue I got with mine (2010 mazda3 S Sport 2.5L). It happens after some 10 minutes of driving, sometimes it’s really loud and scary! Today I did a drain and fill of the AT fluid (also changed the filter) but the issue is still there. We connected the OBD scanner and it gave us the code U0101 which by looking thru the internet it’s got something to do with the TCM or wires, idk. I will keep investigating and if I find a solution, I’ll let you know.

[@upfixauto]

Yes this is a common issue on this Mazda 3 2006-2014. TCM needs to be replaced or repaired. Check out upfix.com, here is the full link www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@henzik]

@@gcertain Send in your TCM for repair. They fixed mine and the transmission now works.

[@alibilgeozturk2227]

Hello. I need serious help. My car has problems similar to the ones mentioned in the video. I'm using a 2011 mazda 3 BL. The car shakes a lot when shifting from 3rd to 4th gear. RPM spikes momentarily and the vehicle shakes. Sometimes when I shift the gear to R, the car does not move. The gear can shift into R, but the vehicle does not move. The mechanics suggest a complete transmission swap, but I would like to try everything before this final solution. Do you think the problem could be TCM related?

[@upfixauto]

Yes, most of the time, it is the TCM for this particular Mazda 3

[@reaper350z2]

I was just given a second mazda3 (2007 2.3 N/A) because the transmission is having issues even after the tcm refurbish. Still shifts hard but I have a feeling it’s the wiring. I’m having trouble trying to source a harness and what led me to believe that it is the harness is that the battery keeps dying after being fully charged and plugged back into the car. Would love to hear advice or get a good link to source the harness.

[@bobsoft]

Have you changed fluid and filter? Check for parasitic drains on your battery with a multimeter. You may have a module or a stereo that is not going to sleep.

[@trabajosdeconstructionams755]

All the videos I've seen are very easy, just like you do it, it's always in the same place today I wanted to replace the one on my mazda5 2006, surprise no 😔 I found it nowhere

[@upfixauto]

That means your vehicle does not have the TCM. Most Mazda 3's 2006 to 2014 have TCM. But some dont have it.

[@shaybaby3925]

I have a 2013 3 I just bought. There’s no trouble lights on. I just happen to use Bouncie and switched it over on this trade and it kicked code P0882. Other than the car being slightly sluggish compared to other Mazda 3s I’ve owned In the past, it doesn’t seem to drive like it’s having major issues. Is this normal? The dealership passed it off as because it’s “skyactive it drives like that to save fuel” 🙄 It also has a cracked transmission case they didn’t mention either but my mechanic said it’s fine for now. However they didn’t catch the tcm code either, is it worth sending in to repair it? And do u think it will fix the code and drive better?

[@upfixauto]

Sounds like the transmission and TCM is good. 👍

[@Stefffine]

A quick question does the number or code on the original TCM have to be the same for the replacement? ... Little background: i have a mazda 3 2010 with check engine light and AT light illuminated & im getting Code:p0763 So i purchased the exchange service on your website but im not sure if i was sent the correct part for the model and year to my car because it didn’t solve the problem and i already had the solenoid c changed and it continues to be the same problem so my only answer is it may still be the tcm failing if i can please get helped please and thank you so much in advance.

[@245artist]

Some part numbers are interchangeable based on the engine displacement and when the TCM was manufactured. The P0763 code does indeed correlate to the TCM. If the symptoms improve and the code doesn’t disappear, a scanner or hard battery reset should clear the code. If there still is a hard shift then that would be a hard code that won’t clear until the issue has been resolved. When you receive the TCM back the AT light and associated codes should clear up. If not, someone will get in touch with you to assist you further from UpFix to get it resolved.

[@upfixauto]

Code P0763, this is a very common fault code for a faulty TCM unit. We do fix this issue when we rebuild/repair your TCM. See our service page for more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@annaosborn7668]

Hi, I have a 2010 Mazda 3 and the check engine light and AT light are on. Driving in limp mode, but the AT light goes away when I turn car on/off again. Then after 5 min of driving car will downshift into 3rd again and AT light comes back on. Error code PO753 solanoid A. Got quoted $4300 to replace the transmission. Is it possible it is just a TCM issue?? Dealership says no way because it didn’t get the code saying TCM issue, just the PO753.

[@upfixauto]

DTC Code P0753 (Shift Solenoid A Malfunction) is very common code for a faulty TCM module. That is one of the codes on the list of reasons why we receive TCM modules for repair. Here is more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@annaosborn7668]

@@upfixauto Thanks so much! I just submitted an order through UpFix to repair my TCM and will be mailing it tomorrow. I've never done any kind of work on a car before but it wasn't too hard removing the TCM!

[@upfixauto]

@@annaosborn7668 great job on your first car project!!! As soon as we get your part we will keep updating you thru email and text with order status. Thank you for your support! 🙏

[@deandrebryant3416]

My car is doin the same thing but its a automatic, got the code for bad shift solenoid. Got it swapped out and got a full transmission change and filter , but AT And ENGINE light is still on. Did replacing your TCM work for you?

[@datkiidwokeup]

Great video I have a 06 Mazda 3 that needs the TCM replaced are their any other mazda that has the same TCM that are compatible ?

[@upfixauto]

Unfortunately not, look at the part number that is on the side of your TCM unit. Then you can search for replacement with that part number. We do have an exchange service available where we can send you a good TCM unit to you right away. Here is the link www.upfix.com/product/mazda-3-2006-2014-tcm-tcu-transmission-control-module-exchange/

[@davidchavez3510]

Call Mazda and they should ask you for Vin# based off of that they will tell you the part#. I have a 06 Mazda 3 also the part # they gave me over here in CA was " L32E189E1D ". I was able to buy a new one for the stealer for around $600 . But I dont even think it was my TCM. It was Transmission Speed Sensor. B4 you go buy the TCM have your codes read at a mechanic or if you have your own reader.

[@davidchavez3510]

Transmission speed sensor coast me only $70 paid dude 40$ to out in..

[@245artist]

@@davidchavez3510 What code was it that popped up that pointed to the speedo sensor?

[@johnsko3321]

I have Mazda 3 2011, I have these two codes U0101, U0100. Will your repair service fix this? I dont want to buy a new one from dealership for $1,500 and then additional fee to program it

[@chrisgioia8547]

@UpFix can you please explain what "plug and play" is

[@paulsz6194]

ChrisGioia85 you have never heard the term, plug & play ? ...Have you ever installed a printer to your computer, or any other device via USB ? Plug and play simply means that it will operate once you plug the TCM in. Although I’d recommend disconnecting the battery before reconnecting the TCM...

[@upfixauto]

Good explanation

[@jdh6000]

Could the TCM still be suspected without my AT light illuminating? I have a very rough shift into R when cold. Also, feels like it goes in and out of reverse, not a slip, but feels like engaging and and disengaging. I also have a hard 1-2 shift, mostly when cold. Both don't seem quite as bad when the car has been driven for a while, though they still don't seem quite right.

[@upfixauto]

Yes it still could be an issue with TCM. But usually AT light will come on and then go off. Sounds like your TCM is just starting to slowly fail. Here is more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@santa1563]

check your motor mounts also

[@RaNdOmJLA360]

Once you replace the tcm its just plug and drive right? Nothing needs to be reset?

[@upfixauto]

Yes that is correct

[@jackjamess157]

Have a 2006 Mazda axela, Tranmissions ecu part number is LSF3 18 9E1A but i got a new tranmissions ecu but the part number is LFS3 18 9E1B, will this work in my car?

[@upfixauto]

No, that part number does not work as a replacement for it.

[@robertandreas1720]

Alright so i have a mazda5 2006 and often it slips from 4th gear into 3rd gear engine light and ATM light comes on and I'm stuck into 3rd went to mecchanic and read the codes and he told me its the speed sensor that needs to be changed any tips on that?

[@upfixauto]

The Mazda 5 2006 doesn't have a TCM but rather the ECU that controls both the ECU and transmission. If the mechanic scanned for codes and it points to the speedo sensor it's very likely that it'll need to be replaced. That's another common failure point on these Mazda's which also plagues the newer years that we support for both Mazda 3 & 5. 2007-2014

[@XxPANCAKExX]

Hi, i have this issue, can you swap it out for a refurbished replacement? Mazda told me new one will need programming.. tia

[@upfixauto]

Yes, you can swap it for refurbished replacement. It will need to be programmed. We ask for your VIN to make sure it is properly programmed for your vehicle.

[@timsalzmann8888]

If you ziptie it, how will it dampen vibrations? Computers need solid mounts, which double as a good earth.

[@upfixauto]

That is a really good question. These computers were designed to fail after getting over 75k miles. By mounting it to the brake lines the vibrations are soften. That is the bulletin recommendation.

[@upfixauto]

TCM failures occur not because of vibrations but from being mounted to the TCM which causes them to overheat. Mounting them to the brake lines prevent overheating of the internal circuit components, which improves on a major design flaw. Your response was correct in that if anything the vibrations are more dampened since brake lines don't have that many moving parts like a transmission which has many moving internal parts

[@bobsoft]

@@upfixauto What do you mean designed to fail after 75K. No electronics can last a lifetime in a hot/cold environment. The expansion/contraction of the board and the use of lead free solder causes many of the issues with most vehicle computers. I have a Mazda 3 with over 280,000 KM with the original TCM.

[@jessetran3784]

I will give UpFix my business because of your 100% guaranteed or your money back policy. It show that you guys stand behind your work.

[@upfixauto]

Thank you! Please start the order at UpFix.com, you will get a free shipping label to send your part for repair. You don't pay until your part is repaired. If you need the part immediately then we can send you a good working part with a core fee that would be refunded after you send your bad module back for core refund. For more info: www.upfix.com/product-category/repair-return/tcm-repair/

[@asburypark1516]

Do you have a service on 2011 CX9??? From park to drive you get a jerk everytime once trans is heated up. When trans is cold it shifts into drive smoothly. I'm told it's a TCM that needs to be updated.

[@upfixauto]

For some reason we have not heard this happening on CX9.

[@mystnightmare]

Hello, I have a 2012 Mazda3 with 160k miles on it. Was on a long drive for vacation before the traction control light came on. I pulled over off the highway and then the AT and Check Engine light came on. I had a mobile mechanic come and use a diagnostic tool and he checked the transmission fluid which he said looked fine. He told me the code said, "Transmission fluid pressure switch B circuit low." - could this be a TCM issue? That's the error code that came up

[@upfixauto]

No, this is not one of the common symptoms for this TCM failure. For common issues

[@skhawar03]

I have mazda 3 2016 hatchback, where the TCM module located and how to remove it. Thanks

[@upfixauto]

It's located in the engine compartment and bolted directly to the transmission -- underneath the battery box. This video shows you how to locate and remove the unit. It's an easy job.

[@RW-ds4dj]

If the TCM wasmounted on the gearbox, then it may have a purpose in relation to cooling. If TCM gets hotter than Trans, TCM will cool down. If TCM is mounted loosely, it may not get enough cooling alone (free standing, aircool only).

[@upfixauto]

Thanks for watching and commenting! Please feel free to join our UpFix Community Forum and share your knowledge. We have a lot of great info and advice in the Forum. forum.upfix.com/?wpfs=mazda+tcm

[@syedsolehin2870]

Mazda well known for novice engineering design. Always placed parts that difficult to remove & rectify. Sometime because the parts placed cause improper problem that suppose not to happen. Maybe Mazda hired post graduated young engineers from no where college, & that engineer some day learn a lot before shift their employer to Toyota.

[@upfixauto]

Yes you are absolutely right. Sometimes parts are placed in areas that are extremely hot and heat causes most of these problems. Also some parts are designed to fail its like a time bomb, designed to fail at designed time, more part sales. Sadly things are not made to last anymore. And yes, we get a lot of business because of that!

[@bobsoft]

@@upfixauto Oh come on! Tell me a vehicle manufacturer that has made a perfect vehicle. Everyone complains about something. I have owned many brands including Toyota and they have all had some issues, some more than others.

[@donottouch9110]

My mazda 3 2011 2.0L doesnt shift at start i get the cold start temperature signal then after the signal is gone the transmission can shift and engage without slipping gear properly but only after playing a little with reverse neutral and drive the peocess takes 5 minutes after that the car drives normal and i have gone even 80 mph on it without any weird smell noise or even vibration could this be a tpm issue or a transmission issue i changed the trans fluid at 100k miles the car still drives at 106.8k miles problems started at 106k miles i also added lucas trans fluid and it helped at first but i am asking for advice if i should send tpm or get my trans fixed for 2k

[@upfixauto]

Yes, these are common issues that are caused by a failing TCM. You will need to get it replaced or have it rebuilt. If you need your TCM rebuit, please consider UpFix. The process is fast and easy! Check out www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@aliiskandar1377]

Hello, I own a Mazda 3 2013, auto transmission hatchback The AT light has appeared a couple days ago but there is no symptoms of any failure at all, but the code is stuck on and took to a mechanic to clear, and the code wouldn't even come up Should I just ignore it and keep driving? Or change it I have been quoted 800+ I feel nothing wrong with the car

[@upfixauto]

Yes correct the problem starts intermittently, the transmission is okay its just the TCM module that is starting to have issues. Once you start experiencing it more and more then you might want to plan time to either replace the part or send it in for repair.

[@aliiskandar1377]

@@upfixauto okay cool, and what should it cost? And the average market? Thanks bro

[@upfixauto]

Currently the repair cost is $199 Here is the link for more info: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@rekzzz14]

I used to have the p0772 shift solenoid e and i replaced the solenoid now all i have is p0773 shift solenoid e electrical. Do you think this will repair my tcm? Thanks

[@upfixauto]

Yes definitely P0773 is one of the common error codes for faulty TCM. We can rebuild it. See our service link: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@afterparty586]

Not too long ago, my tcm was replacement and everything went well but now my pcm is bad, could it be that I wired it wrong ?

[@upfixauto]

No it will not be the wiring. You just disconnected the harness plug and reconnected it. What DTC error codes are you getting on the PCM?

[@mechanicboy50]

My 2010 Mazda 3 will not shift past 3rd gear. When I start it, the check engine light comes on but the AT light does not come on until I try to put it into gear. It goes into gear hard, especially into reverse. I have no manual control at all. I did a drain and fill on the transmission which didn't fix it so I pulled the codes. P0768 and P0773 came up, nothing else. I cleared the codes but the come back instantly. I was going to check the electrical but I don't have a diagram to check the pins, do you happen to have one I can use or do you believe this is just a TCM issue? Thank you.

[@upfixauto]

Both of those codes are supported by UpFix for the TCM repair. It sounds like the TCM just needs to be rebuilt.

[@mechanicboy50]

I had the rebuild performed by you guys but it didn't fix the issue and now it also has a code P0763 on top of the P0768 and P0773. Any idea why the new code would come up?

[@tb673]

why was this video so perfect LOL thanks alot guys!

[@upfixauto]

Thank you!

[@thedork7481]

I have a mazda 3 2007. I have no AT lights on, none of the error codes show up on my obd scanner. Yet i have this issue where the drive light in the dash that shows which gear the car is currently in go off and on at times. This issue only affects drive and none of the other gears. When the drive light is on and not going on and off, all gears perfectly shift and the car runs really smoothly. Is this still the tcm or some other transmission related issue.

[@upfixauto]

If the drive is affected when the gear shift indicator light is intermittent, then it sounds like it could be a physical issue, not just an electrical one. It would be good to verify if your OBDII scan tool is capable of reading TCM codes. If it is, then it's possible for the TCM to be at fault since they're commonly known to fail as a result of manufacturing defects. We can do a bench test and see if there are any issues with the TCM on our test bench, and rest assured, proceed with repairs after diagnostics.

[@thedork7481]

@@upfixauto can you elaborate a bit more about the physical issue part. Do you think it could have something to do with the transmission linkage cable, sensors or the shifter itself? I'm really puzzled as the car runs smoothly whenever the drive light isn't going crazy blinking.

[@shirabaybee123]

Do I have to program the new TCM? Or can I just replace it

[@upfixauto]

Yes, we can program it, and we also offer repair service and exchange service. Visit upfix.com

[@kylekam6879]

My 06 Mazda 3 sometime jerks during a mild acceleration and the check engine and AT light will come on then go away. Is it the TCM going bad?

[@upfixauto]

Yes this is common issue when TCM is failing on a Mazda 3

[@kylekam6879]

@@upfixauto Do you guys ship to Canada?

[@Domiano542]

I went on your site and saw the tcu are only for 2007 and up. Mine is a 2006. Will it work?

[@upfixauto]

If your vehicle has that TCM then yes

[@heftysv806]

Did you have to reprogram it before you installed it or did you just plug it in and it worked?

[@upfixauto]

It will be Plug-n-play, if you have your original TCM repaired, send it to upfix.com

[@chrissmith135]

I have a 2009 mazda 3i 2.0 I am having trouble finding this part. Does anyone know if all 2006-2014 tcm's are the same? Or is there a difference between the 2.0 tcm and the 2.3 tcm? I'm having no luck

[@upfixauto]

Yes, they are different. Also, make sure the part numbers match. If no luck and you have some time, then an option is to send your original for repair. It takes a few days for repair and few days in shipping. Check out upfix.com

[@salilm1]

I have a 2012 mazda 3 skyactiv.automatic The engines revs high at about 30 miles/hr. Is the transmission not shifting?

[@upfixauto]

This is a common issue with faulty TCM. Transmission is okay, just the TCM that needs to be replaced or repaired. Check out upfix.com

[@TreehouseMachineStudios]

I just had my 2006 Mazda 3 tcm back from your facility and I still have same issue. Hard shifting in reverse, transmission light on, stuck in 3rd gear when I put in drive. Seems like nothing was fixed by your service.

[@245artist]

You might need to do a hard reset. With the TCM still plugged in, battery removed, short out the battery terminals for at least 30min. Afterwards reconnect the battery and see if the TCM improves. If not, I’d reach out to UpFix and provide the codes/issues you’re still having. The TCM typically comes with a one-year warranty.

[@TreehouseMachineStudios]

@@245artist how do I short out battery terminals exactly. Unplugged battery already with it plugged in per techs suggestion and zipped tied positive and negative so they were touching for 30 min with same issues when I connected again.

[@245artist]

@@TreehouseMachineStudios It sounds like you've already tried the hard battery reset. What codes were you still getting after the reset?

[@TreehouseMachineStudios]

@@245artist yes and I am unpluging my battery overnight tonight as well. Trans light is on in my dash, when I put in drive it’s in 3rd gear, hard shifting in reverse. Same thing as before I sent in tcm for repair.

[@edit8688]

Any update on it ?

[@ozunabrii92]

2011 mazda3 jerks when put in reverse and traction light, ebrake, engine light, and AT light on... will i need a new tcm or ecu? helppppp

[@upfixauto]

It sounds like you need to get it scanned. For all those diagnostic lights coming in and most likely a TCM rebuild will be in order to resolve those issues. But have it scanned by using a diagnistic scan tool to see what codes are coming up to know what the issue is.

[@elijahjenkins1669]

Very helpful video, thanks!

[@upfixauto]

Glad it was helpful!

[@calvinglenn1460]

Hello! I had a problem with my mazda miata NC3 2013. Everytime the car downshift from 3rd gear to 2nd gear and 2nd gear to 1st gear, it always jerk like rough downshift. The car also had P0757-FF (Shift solenoid B performanve or stuck on) warning and sometimes gave me a check engine and A/T warning. My mechanic already check all of the mechanical components and there's nothing wrong at all. Is all of this problem come from the tcm? Thanks!

[@upfixauto]

Yes this is a common issue with this TCM unit

[@calvinglenn1460]

Sorry for the late reply, so i check my tcm to two nearest local shop in my town and they said that my tcm is fine. So after that i changed all my transmission component like gearbox, body valve, and torque converter with the new one but i still cant fix the problem. After chaging all the component i also check on all the wiring and my mechanic say that everything was fine. Could it be that the shops who checked on my tcm doing some mistake? The one that makes me confuse the most are because theres no burnt inside my tcm and theres no error code at all after i reset it 3 months ago. So is it still coming from the tcm even if theres no error code at dashboard indicator and from the OBD? I hope that you could help me and share your thought on this because that will means a lot to me, Thanks!

[@FlipBoji]

Hey, so I have a 2011 Mazda 3s 2.5 and the code read as P0720, which said it was an output sensor. Could you direct me to find more information on this or place to buy? I’d greatly appreciate it

[@LarusXLarusX]

How did you end up fixing it?

[@FlipBoji]

@@LarusXLarusX so apparently there was a whole other output speed sensor underneath the car, so I replaced that. Once I pulled it it started leaking transmission fluid, so I had to fill it to adequate levels after I was done. And then my at remained, which I went to upfix to get a refurbished tcm. They had two options, which were trade in your tcm for a refurbished one (quick) or send your tcm to get fixed and sent back

[@terriarobinson1240]

I have a 2015 Mazda Premacy skyactiv and it has these codes PO732 P0733 P0734 P0751 P0780 P1728. Do you think replacing the TCM will fix? Is the tcm located in the same place?

[@245artist]

If you have a TCM that looks like the one you see on this video then UpFix should be able to rebuild it.

[@upfixauto]

👍

[@johannesbahm6148]

I have a TCM problem, my part number is LFS3 18 9E1A. 2006 Mazda 3 LF 2.0L Will an L3 type TCM work on my car?

[@upfixauto]

For this vehicle, the replacement part number needs to be the same as your original part number. If you have time, we can always upfix your original part!

[@johannesbahm6148]

@@upfixauto Thank you very much for the advice. Sounds like a good plan to upfix it but I am all the way in Southern Africa (Namibia 🇳🇦)

[@stalinleon9749]

Hello, I have a 2009 Mazda 3. Currently getting the code P2708. I was previously getting another code saying solenoid B was stuck that code no longer comes out. It does kick when going on reserve & when going from gear 1 to 2 after the AT light coming up it’ll shift all the way up to 4 but not to 5. Will replacing the TCM fix this issue ?

[@upfixauto]

We support the code P2709 which is also for solenoid F but the electrical part of it. P2708 refers to the actual solenoid itself. If the TCM hasn’t been rebuilt yet we would highly recommend starting there since its most likely the TCM itself. Other possible culprits are a faulty solenoid or dirty transmission fluid. Replacing the TCM with another used one may actually make it worse especially if it’s the wrong part number or not rebuilt yet. We recommend to replace your TCM unit or you can send your part for repair to UpFix.com www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@dylan6996]

if my tcm causing me these issues and I don't want to pay to get it fixed is it possible to simply buy the tcm of another mazda same year same everything and just install it to my car the way you showed or it will need to be reprogrammed

[@upfixauto]

It would most likely need to be reprogrammed which the dealership has to do. With our service you would simply send in your tcm and we would repair the one you already have. This means no programming would need to be done.

[@dylan6996]

@@upfixauto How do I get it fixed from you guys are you available in Canada too?

[@reesecochlin8794]

Hello! I have a 2006 Mazda 3 with 224,000km. I recently ran the codes and got (P0753) Shift Solenoid A. After reading I’m convinced this would be a TCM issue but I’m also not sure given some people saying this didn’t fix the problem. My car is in rough shape and I don’t know if spending the $500 is worth it for a old and used car like mine. Consider selling it for around a thousand dollars with its problems. What’s your thoughts? (It’s also in safe mode, won’t go past 3rd, rough shifting, AT +CEL)

[@upfixauto]

Yes it is a very common issue with these Mazda 3's

[@bobsoft]

You should be changing the fluid and filter every 100,000km. The shift solenoids have a hard time doing there job when the fluid is dirty

[@tylermatte6882]

If I replace my TCM myself will I have to program it?

[@upfixauto]

Not always, depending on the part number. Make sure the part number of replacement matches.

[@timfavorites]

I have a similar issue. The AT light and Check Engine light stays on at some times. No always. I am confused that why the issue is not always happened if TCM is failed. Will your repair service fix this?

[@upfixauto]

It is best to have your car scanned with a diagnostic scan tool to get codes. You will need to scan it while the light is on, if the light is off it most likely will not help to identify the problem. Once you have the code and the code is listed one of the codes that we repair, then our service will work for you. See here what issues our service fixes: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@timfavorites]

@@upfixauto Thanks. I scan it and get codes is U0101.(No communication with TCM). After plug-n-play the TCM module, the issue was not reproduced so far. only drived 12 miles from plug-n-play the TCM module. I am confused that why the issue is not always happened if TCM is failed. Is it possible just loosely linked TCM? or Is it possible related with dirty transimition fluid?

[@upfixauto]

@@timfavorites That code points to an internal failure inside the TCM which means the TCM isn't communicating with the scan tool. Currently it may be intermittent, where it is just starting to fail occasionally. If it continues we recommend to replace it or sending your original one to us for repair, we fix that specific issue. For more info visit our website upfix.com Here is the link for this repair www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@timfavorites]

@@upfixauto Thanks!

[@ChapaDB]

Will the TCM work with any Mazda TCM? Pls ik im 3 years later but im having problems with this atm

[@upfixauto]

If you are getting a replacement part, then make sure the part number is the same. You can also get your original TCM repaired by UpFix. Visit upfix.com for more information.

[@jac9245]

Yeah, just make sure to match the part number and correctly put your vin number in. Totally worth it

[@ChapaDB]

@@jac9245 which is the part number? Like the top one?? Or the big numbers?

[@jac9245]

@@ChapaDB the one on the top the big numbers

[@jac9245]

@@ChapaDB on their website they’ll let you choose which part number you have like a photo . To find your vin number it’s on your windshield on the bottom right corner

[@cadendequilla4214]

I have a 2008 mazda 3 (2.3L 5 speed auto) and I started my car and tried to go into reverse. When that happened my car felt like it almost stalled and my engine and transmission light came on, any ideas what my problem can be? My reader pulled the u0101 code

[@cadendequilla4214]

The car more so clunks and won’t move. Stall isn’t the right word

[@upfixauto]

Your TCM unit is starting to fail and affecting the transmission.

[@bernardhunter-nc8ij]

How much does it cost to send in my TCM for my 2006 Mazda 3 2.0L.?

[@upfixauto]

Here is the link for the current price: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@upfixauto]

Here is the link for the current price: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@bernardhunter-nc8ij]

Ok these are the issues I am having with my 2006 Mazda 3 2.0L 1. Check engine light and AT light on 2. The car shifts into 1 and 2 gear like it doesn't even there. 3. Once in third gear it gives high rpms then hard shifts 4. Goes into "limp mode" 5. Sometimes I can't go in reverse. 6. Manual transmission gear options don't display 7. The engine gets real loud as if it is whining/grinding. 8. If driving and I stop at the stop sign or stop light the car while not kick back into gear when taking foot off brake and applying gas. I would have to put it in park, turn the car off. And once the car is restarted it will work just fine for about a few minutes then the same problems occur. 9. Put the OBD reader into the car and the codes given are P0455, P0771, P0741, and P2187. 10. Now if I clear the codes, the engine goes a lot quieter and all gears start to work to include the manual transmission gear options start to display and become active again. But at this point I don't know if I should be changing my solenoids, fluid, and filters or what. So I'm lost. Also I just purchased the car from a friend and not sure of the maintenance upkeep but I got the vehicle at 230,000 miles.

[@josecaba9433]

Do u have to reflash the computer or is it just plug and play

[@upfixauto]

After you get it back from us, it will be plug n play.

[@bonneless]

Tengo un Mazda 3 2010 y el módulo no se encuentra ahí, hay alguna otra parte donde pueda estar?

[@upfixauto]

Algunos Mazda 3 no tienen TCM. Eso significa que está integrado en la transmisión.

[@upfixauto]

If your Mazda 3 or 5 does not have the external TCM. Then first have dark or dirty transmission fluid drained. I recommend replacing it with fresh fluid and a new filter. Check fuses, back probe wiring, plugs, and pins. Make sure they are free from debris, dirt, grease/oil. Check your speed sensor and your oil pressure switch to the transmission as well. Please check your battery cables and grounds, try the hard battery reset (guide attached) with both negative and positive terminals constantly touching for 30-40min and the battery removed. Once you have completed the above steps, re-scan the car and follow the codes. If he has the same issue then the PCM may need to be replaced. forum.upfix.com/tcm/tcm-troubleshooting/

[@UnknownJinX]

If 1st Gen is anything like the 2nd Gen, the 5AT TCM is known to go bad on these cars as they age. There are some DIY videos on KZbin you can use to help you replace it, but the part itself could cost. ...and that's part of the reason why I own a 6-speed 2nd Gen.

[@upfixauto]

Instead of replacing it, just UpFix it. Visit upfix.com today!

[@bobsoft]

We have 1st gen 2007 automatic with no issues. I change the fluid/filter every 100,000km and I also moved the TCM to the firewall for better cooling. In realty it doesn't matter what vehicle you drive They all have issues when they get older. All fuel injected vehicles have computers that will fail over time. The constant heating/cooling of the PCB cause it to flex and solder joints to crack (lead free solder) and capacitors leak or dry up with age. Just a fact of life no matter the brand.

[@nestorvargas9430]

I have 2005 send issues at light on hard kick into reverse and solenoid can you guys fixed?

[@upfixauto]

Yes that is a common issue. Here is more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@austinle008]

I have a manual car mazda 3, 2014 The gear is stuck and extremely hard to shift once engine is hot.. Is this a TCM problem? The transmission oil is full.

[@upfixauto]

It does sound like it could be the TCM at fault. Hard shifting or stuck in a particular gear, is indicative of internal TCM faults. If you have codes, make sure to provide those you when you checkout online via the product page: www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@austinle008]

@@upfixauto thanks for your reply. Look like we are going to use your service. However what is the codes are you refering to, and how or where i get these codes. Thanks heaps

[@upfixauto]

The codes are DTC codes. Diagnostic trouble codes that you can get when you use a OBD2 scan tool to pull trouble codes

[@austinle008]

@@upfixauto can I still send to you my old TCM for fixing without codes?

[@sportscamper88]

I Know this is now 6 months old but I gotta put this right! In this case the car is a MANUAL TRANSMISSION. There is no TCM in a MANUAL TRANSMISSION equipped car! Simply put, If you have a clutch peddle in your car then this thread is not for you.

[@Berkmugga]

I had jerking when shifting through my gears on my 2007 Mazda 3 2.3L automatic. I changed the TCM out and it’s Regina to 4500 before switching to 2,3,4th gear. The original code was P0758 before I installed the brand new TCM. That code is gone now and it’s P0757. Do you think the problem was the solenoid and not the TCM, both, or something else?

[@upfixauto]

Yes this is common when TCM is starting to fail. We can rebuild your original TCM at upfix.com

[@williamgould3674]

Hey man. Why is it that if I want to have a new unit sent to me so that I can still have my car to drive until it arrives, I am required to pay for firmware update ($99)?

[@upfixauto]

If you send your original part for repair then the firmware update is not required. But if you purchase an exchange unit then it will need a firmware update because it will be installed into a different vehicle and need to make sure the unit will work properly for you.

[@mohammadrashid9966]

I liked it.. Very nice video 😊

[@upfixauto]

Glad you liked it

[@mauricioruizarguello6001]

What is the difference between LF6B189E1B and LF6B189E1C ? or are the same?

[@upfixauto]

Not a 100% sure, but it is very minimal differences. It can possibly work for you. But you most likely will still need to have it programmed to your vehicle. Did this answer your question? With UpFix.com we program the TCM to your VIN before we ship it to you, to save you even more money and not needing any programming at the dealership.

[@devpaco7959]

Do you guys repair TCM for mazda 6 2011. Asking as i did not see it as an option on the website.

[@upfixauto]

I'm sorry, not at this time.

[@TheGoran83]

Do you put the same TCM back or new one?cheers

[@245artist]

If you buy the exchange service, UpFix sends you a refurbished unit straight away and you send yours to UpFix for a core deposit refund. If you're buying the repair service, then UpFix simply repairs your original TCM. The exchange service is ideal for those that can't afford too much downtime.

[@upfixauto]

👍

[@this-is-the-day9229]

Can a Po770 bad shift solenoid E be caused by TCM?

[@upfixauto]

Yes it is caused by a bad TCM

[@CrispyAkiyama]

Went to your website, do you guys only do Mazda 3? I have a Mazda 6 and having the same issue

[@245artist]

What year is your Mazda 6 and what codes are you currently getting?

[@CrispyAkiyama]

@@245artist not sure on the codes but it’s a 2006

[@upfixauto]

We almost never hear of this issue happening on Mazda 6. Dont think that issue is with TCM.

[@doc2590]

If the TCM is causing me so many issues in a simple Mazda 3, I hate to think of the expensive problems you might get in a Tesla.

[@davidmccarthy6061]

EVs have thousands of fewer parts, and moving parts, than gas cars.

[@1silvervespa]

Couple of self tapping screws and some spacers. Do right .

[@upfixauto]

👍

[@refinedbylew]

Hey so my 2008 mazda 3 have codes U0101, C1277-A0, U1900-E0 Will you guys program work for my car?

[@upfixauto]

The part that you are sending for repair, is it original to your vehicle? If it is then it is already programmed to your vehicle. If the part ia NOT original, then check the part number that is on the original and make sure it matches the part number on your replacement module. If part number are NOT same then most likely it will not work for you. Also if part is NOT same then we CAN'T program it to your vehicle because internal components of the part is different and it will never program tonyour vehicle. Only send us your original TCM unit for repair.

[@refinedbylew]

@@upfixauto I did the Exchange service you guys do and yeah it's the original part to my car and I'm just waiting for the one you guys sent out

[@refinedbylew]

@@upfixauto I sent you guys the part number to the original cars tcm

[@upfixauto]

Yes, perfect, yes we will rebuild it and update it to the latest firmware. Your original TCM unit is already programmed to your vehicle, since it is original to your vehicle.

[@refinedbylew]

@@upfixauto unfortunately it didn't work

[@catfishjerry6412]

Hello nice video I am having limp mode issues in second gear and hard shifting and high revving . I have changed dark fluid to put new fluid and filter . Worked fine then limp mode again. Gettin code for stuck solenoid c . Could this be TCM?

[@upfixauto]

Are you getting any codes? Do you have any warning lights on your dashboard?

[@catfishjerry6412]

@@upfixauto yes check engine light and code for stuck solenoid c

[@upfixauto]

@@catfishjerry6412 Yes you are most likely getting a fault code P0763. If you are getting that code then the problem is with your TCM unit and not with the solenoid. This is a very common fault code for a faulty TCM unit. We do fix this issue when we rebuild/repair your TCM. See our service page for more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@catfishjerry6412]

Just realized i have a 2.0 l that does not have TCM but has pcm . Could this be the same thing and I change pcm

[@rj2742]

@@catfishjerry6412 your pcm is the ECU. Not the same thing as tcm. But still an easy fix

[@artmus9936]

I had u0101 and my car is working only on 3rd gear. I replece my TCM and my car start to work on all gears but AT is not turn off and diagnostic is showing u0101 yet. Also sometimes lost any gear and turn back. What can be the problem?

[@245artist]

It sounds like a TCM failure honestly. You can try a hard battery reset procedure and see if that helps, however if you replaced it with another used TCM that would most likely be the cause of the problem. The first four characters of the part number should be identical and you should only install a refurbished or new TCM in place of your bad one. If you simply swap it for another used TCM, it may not fix your issue especially with that code provided.

[@upfixauto]

Thank you for helping out!

[@artmus9936]

@@upfixauto can I reprogramming my TCM with outher number for my car? Is it working on my?

[@upfixauto]

@@artmus9936 if you are using a replacement part and the part number is different it will most likely not work. But you can always try. Just dont want you spending labor hours of getting it and then out back again. Along with programming fees from tge dealership. If you are getting a replacement part, please make sure to use the same part number. You can also send your original part to UpFix.com for repair.

[@artmus9936]

@@upfixauto but I do some staff on my original part )) is it a problem for you?

[@GiBBO5700]

Zip tie it to your brakes lines. It fine?

[@245artist]

If they're securely in place, it shouldn't be a problem. You're keeping the TCM away from the transmission which tends to overheat so zip-ties are an improvement.

[@GiBBO5700]

@@245artist at least put something in between to stop the vibration eventually wearing through the pipes. Then when you sell the car to a woman later on she doesn't kill her kids in an accident 5 years later.

[@245artist]

@@GiBBO5700 It shouldn't cause any vibration or wear on the TCM or brake lines that they are mounted to as they are solid metal lines with no moving parts. The bottom of any rebuilt TCM usually has a pad that acts as a sealant and should help with vibration.

[@upfixauto]

👍

[@LuisDiaz-dr5dk]

I have a mazda 3 2004 but I can't find the TCM am being looking everywhere but I can't find it you can tell me if have a TCM or not please.

[@upfixauto]

Hi Luis, this video is for year 2006-2014. In your 2004 the TCM must be in a different place.

[@jondua196]

@@upfixauto Do you know where The TCM could be if its not under the battery? I have a 07 2.0 and the TCM is not under the battery.

[@rickytaranaki3570]

Did you end up finding it?

[@josbuendi5839]

Hi i have a 2014 mazda 3 i took off the battery tray and theres no tcm i cant seem to find it do yall know where it can be?

[@upfixauto]

Some Mazda 3's dont have a TCM.

[@josbuendi5839]

@@upfixauto your website says you fix tcm from 2006-2014 thats why i thought it had one

[@upfixauto]

@@josbuendi5839 Mazda 3 2014 was a split year that started not to use TCMs.

[@Jacob1986]

My 2010 has the at light come on intermittently and i can feel it slipping. 2nd - 3rd gear and today 5th gear jerked

[@vitaly15]

This is common with Mazda 3 and Mazda 5 TCM units. UpFix.com can rebuild this unit instead of purchasing a replacement one.

[@paulsz6194]

Ah, those #fifthgear jerks! , I always thought #Topgear was more superior,well presented with Clarkson, Hammond and May..

[@upfixauto]

👍

[@mostaphaali5938]

How much is the piece and how much is the programming please?

[@upfixauto]

With our exchange service you'd send it in and we would repair your existing TCM for $289. This would require no programming

[@elmatalotes]

Bro me aparece la luz at, el escáner no me arroja error pero si le doy a limpiar me la borra por un rato, cuando aparece me resbala en el segundo y tercer cambio y no me pasa del 4to cambio, y si lo pongo en modo manual no me aparecen los números ni me suben o bajan las velocidades, crees que pueda ser eso? es una mazda 5

[@upfixauto]

Sí, este es un problema común con mazda 5 tcm. La unidad tcm necesita ser reemplazada o reparada. Podemos reparar esta pieza. Aquí hay más información: www.upfix.com/product/tcm-mazda-5-2007-2015-transmission-control-module-repair-tcm-tcu/

[@TheTruthhurts1984]

How much and where do I sent my tcm?

[@upfixauto]

Address is UpFix 4991 BU Bowman Dr, Buford GA 30518. Here is a link to the current pricing www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@pacificbayautoinc.7462]

will this service work on a 2015 Mazda 3?

[@upfixauto]

Yes here is more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@pacificbayautoinc.7462]

@@upfixauto it says it's for 2006-2014, do you know if 2015 is different? as far as I know 2015 is the same drivetrain but your listing goes only to 2014, thanks 🙏

[@upfixauto]

@@pacificbayautoinc.7462 some 2015 got away from using TCM. If your 2015 Mazda 3 has a TCM then we can repair it. You can look under the battery to see if the TCM is there. If it is not then your 2015 Mazda 3 does not have a TCM. Hope this answered your question.

[@juanrodriguez9876]

Is the TCM end the p0762 the same

[@245artist]

The TCM if faulty and in need of a repair can throw off that code. Basically, it just needs to be rebuilt.

[@upfixauto]

👍

[@Zentanglez7]

Are you guys still doing this !???

[@upfixauto]

Yes we are rebuilding these units daily!

[@goyardhold3038]

How do you get that yellow plastic piece off the bolt holding down the TCM

[@upfixauto]

It is a clip on, and it's on there very tight.

[@doc2590]

I'm still having issues with the TCM a mechanic took it out but couldn't get a replacement so he put it back in ( this cost me $180) so at least I can use the car, amazingly it started to work again for a while, and now it's not working again. Does anyone know anyone in Brisbane who actually knows how to fix these TCM problems? Somewhere I read that the TCM is supposed to last for the life of the car, and perhaps many are being replaced when they don't have to be. I don't know, I would just like the problem fixed, it's just very friggin annoying.

[@amazingsylvia]

Hey Guys, I want to sent my TCM to you to be fixed, how can I do that?

[@upfixauto]

Hi here is a link with more info www.upfix.com/product/tcm-mazda-3-2006-2014-transmission-control-module-repair-tcm-tcu/

[@Karen-ur6mm]

Where can we buy a brand new tcm

[@upfixauto]

Dealership sells new units. But I think it could still be on national back order for nee units.

[@javiermarquez5113]

Does it matter if the part numbers or some letters are different on the replacement TCM?

[@upfixauto]

Part numbers should be same. There is a few exceptions

[@OP-ik7qb]

I was checking my TCM on a Mazda 5 and the harness connector and pins on the TCM were completely wet, it seems like oil but there are not any oil leaks around. It seems like it's something leaking inside of the TCM, anybody is experiencing the same thing?

[@upfixauto]

There are no liquids inside this computer TCM. Did you get your issue solved?

[@notiturismoonline]

i aim rtyng to figur out if you can send the tcm to Mexico, really need to repair

[@upfixauto]

No sorry, we currently dont ship to Mexico, only to USA address