TCM Problems! Transmission Control Module (2007-2011 GMC Sierra 1500)
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- čas přidán 16. 07. 2024
- I had issues with my truck not showing the gear the transmission was in and it was in limp mode. I went through and looked throughout the trans wiring. I could not find any issues with the wiring or the grounds. I had to buy a remanufactured tcm, and it worked!!
Check Wires
Check Connections
Check Grounds
Resetting System:
Charge Battery to 12+Volts
Disconnect Battery From Truck for 30 Minutes
Install PCM/TCM
Connect Battery
Start Truck
TCM was sourced through:
store.allcomputerresources.com
Parts on the GMC
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Thanks for doing everything out of frame
Thank you for sharing. My 2008 GMC Serria suddenly went crazy. It shifted very hard the first shift. After that it shifted fine. My gear indicator on dash did not illuminate. Backup lights did not work, door locks went crazy. Several other things failed to work. After watching your video I ordered a rebuilt TCM from All Computer Resources online. They were great to do business with. Every step they took, they informed me. I just received the part and installed in a matter of minutes. Everything works as it should, yeah!! Feels good to have my truck running good again. I appreciate your help. Thanks again!!
William
That’s awesome!!! Happy to hear that!
Thank you for your video. My 2007 Silverado had a U0101 code, in limp mode, no gear selector, no speedometer and door locks gone crazy. Saved myself some money by seeing your video and replacing the TCM, rather than taking it to the shop.
That’s awesome! Thanks for the support! That’s what the CZcams auto community is supposed to be for!!
Did this replacement hold up?
@@blooemu3823 Yes, it's held up. I've had zero issues after replacing the TCM
My 2007 Avalanche 4x4 had a similar issue...Drove fine, parked it...came out in the morning and Check engine lamp came on and the rig went into limp mode....Scan it and had the U0101 code......Nothing more....I ordered a pre programmed TCM from the outfit you used here....A few days later the fresh one showed up.....Installed and the issue was solved.... Great video you posted..
That’s awesome! Happy that was your fix!!
My 09 Yukon Denali did something very similar. All gauges except for the voltmeter died while driving and truck wouldn’t upshift unless I put it into neutral and back to drive. Found a bad ground that had bricked my TCM. Thanks for the video.
Nice to hear you found the issue!
Right on! Nice job. 👍
Thanks!!
Nice fix partner!
Thank you for the video. It lead me to the link. All computer resources i think, they were great in every way just keep hitting 0 when you call or they dont answer. Just to let everyone know there is a blue clip that holds the gray one from opening. Also it's much easier to pull the entire tcu out to unclip it.
Yes I agree! Thanks for the comment!!
@@TheShopWorldWide I wonder why ours are there? It seems like every other silverado, older and newer, I have seen has an empty space there and the tcm is in the trans.
@@redrider7xbilly548 there’s no telling. Engineers vs mechanics…..
@@TheShopWorldWide my theory is they were trying something new to make life easier on mechanics for once. Then when they found out a customer can change it in under five min back to the tranny it went. Lol
@@redrider7xbilly548 you’re prolly right lol
Thank you for the video.
Thanks for the comment!
Im having a similar but different situation, when I have my gmc sierra 2011 on park position the truck start lock and unlocking the doors when a shift to another gear it doesn’t make it, I check ground power, I try to found the transmission gear position sensor but in the data park/reverse is flashing
I have 05 Silverado tow mode stuck on seems like only going to 3rd got rebuilt Trans new torque converter codes shows open circuit
Have the same issue with my 09 2500, TCM came in today fingers crossed it fixes it!
Hopefully it does!!
Did this work?
So glad i found your video
I installed a newer 6L80e in my 2009 Avy. Took it to the dealer to flash and they some how bricked the TCM. No gear selection light, whining and grinding from the pump (transmission), and other mess. They will not take ownership they messed up. Im so mad!!
Any suggestions?? They say transmission is bad. Lies
Glad it helped
I'm having a problem with 2004 GMC Sierra that doesn't go into low or overdrive?
2008 gmc sierra 1500 vortec max. When weather gets cold (40 ish) and after engine warms up my entire truck goes nuts electronically intermittently. Gauges, locks, lights, and starts shifting hard as hell, esp in 2nd. If I kill truck it won’t restart for several minutes…new battery and cleaned and grounds looked good with no fix. Runs good during warm weather. 🤷🏽♂️
I wonder if you have a bad connection some where.
@@TheShopWorldWide exactly what I’m thinking but man what a pain for someone who’s not a mechanic.
@@grantwillings8091 yea it’s difficult when you don’t have certain knowledge…
The same thing happens to mine. Please tell me if you found the problem so I can know what it is and be able to fix mine. They have the same problem.
The same thing happens to mine. Please tell me if you found the problem so I can know what it is and be able to fix mine. They have the same problem.
have a2010 Silverado transmission goes to neutral when stopped give a little gas and it takes off and shifts fine. if you pickup the rpm from 500 to 700 it stays in gear don't know what is wrong? fluid and filter is new
Yesterday I changed the filter and fluid on my 2007 GMC Sierra 1500 with the 4l60E transmission..came out great until my check engine light came on..I reset it my scanner and the light came back on...there are 2 codes...the P0700 for the TCM and a P0976 shift solenoid B control circuit low.. when I removed the trans pan I barely bent the shift bracket outwards so I could slide the pan of and on...then bent the shift bracket back to its original spot..I see a wiring harness right there by the lower shift linkage going into the transmission..and it kind of seems like it's a little loose as in possibly worn out ?
It is on the drivers side by the transmission shift linkage...anybody know what that is and what it's called ? I know I don't like what I see and tried to zip tie it together for a better tighter fit but the tie kept sliding off so I left it... all I did was change the filter and fluid/gasket and now these 2 codes.. I will probably change the A & B solenoids but I hate having to take the tranny pan back down with the fresh fluid in it..I will probably try to get a new pan with the drain plug in it to make it easier.. anyway excellent video here.
Also I checked the fuses on the drivers side under the cover and the 2 or 3 that it listed were all good.
Thx
Thanks for the comment!!
Having the same issue. Just replaced my TCM with no luck. Getting power at fuse box. No fraying I can see. Pins look good.
Have you checked all of your teams fuses?
@@TheShopWorldWide Yeah both TCM fuses get power. I don't know where to go from here.
I’m not sure, I know to check the wires, connections, fuses, and the tcm. Possibly could be a sensor with the trans?
@@TheShopWorldWide Yeah I'm at a loss. Any idea where it connects into the transmission? I tried picking around tonight but will have to dig deeper this weekend.
I haven’t gone any further into my truck other than what was in this video. But there should be a trans harness as well, I would think.
@TheShopWorldWide did you program the tcm before installing it?
The company I bought it from requests your vin to preprogram the tcm to match your truck.
Will the transmission stop slipping and overheating after getting a new TCM? The TCM caused it to slip and overheat.
I cannot answer that one, if your tcm made it over heat, I would guess it was blocking fluid flow throughout the trans. Good luck to you!
Did you have to reprogram the tcm? If not than which brand did you byy
Yes they require programming
I forgot to put my trans cooler clips back on. All my oil spilled out and it threw this code
i have a 2011 silverado with the 4l60e transmission that has had to be rebuilt twice so far in its 230000 miles... these are my symptoms.. speedometer starts jumping followed by loss of acceleration for a minute.. also while towing anything in tow mode if the speedometer jumps it will kick it out of tow mode.. i have replaced the speedo sensor and installed a new stepper motor on the cluster for the speedo.. still does it.. then every once in a while ill get the engine code of canbus a stopped communicating.. i can reset the code and it will act fine for awhile.. during the summer it hardly did it.. then when it started getting cold recently it has started acting up again leading me to believe that the board on either the tcm or ecm expands in the summer allowing contact and when it gets cold it shrinks allowing intermittent contact either at a solder joint or on the chip itself.. i have unplugged my harness from my tcm which is located in the exact same location as your gmc and found no bad pins and no frayed wires.. im leaning towards the tcm as the other day it flashed the light on the dash for the traction control turning off then immediately went back off.. cant really find any info on what module controls the traction control and the tow mode.. but i would think the tcm would control that.. i also replaced the pigtail on the harness connector for the speedo sensor.. i have a remanufactured tcm on the way and hoping it fixes it.. when it throws the engine code for the canbus a not communicating it puts the truck into limp mode and shifts really hard.. appreciate any input from anyone. thanks.
Sounds like you’ve done everything you can, I would try the new tcm and see what happens. I mean I wouldn’t know what else to do with what all you have checked and replaced…..
Try the crank shaft sensor my speedometer was doing the same and then stoped working but changed out my crankshaft sensor now works fine
did the new tcm work? I have a 2011 Silverado 1500, the transmission slips and neutralizes and I’m debating on getting a new tcm, I’ve checked grounds , changed transmission solenoids but nothing seems to change.
@@rey-mj8fq the slipping im not sure about but after replacing my tcm and it still had the same symptoms turns out my pioneer radio that i had put in the truck uses a maestro interface that you can hook part of it up to the odb2 port to get live data while going down the road was causing all the problems...
just joe what was the solution for that problem did you put the original radio or a new radio what was the solution thanks friend
Was the tcm plug and play or did you have to have it flashed
I had to order one flashed to my specific vin.
How did you get the TCM programmed to your truck Vin
I bought mine through a company that specializes in computers. I’ve heard you don’t have to have it programmed by someone. But I can’t confirm that.
When ur tcm went out did it act like it was stuck in gear and wouldn't drive forward or reverse
My gear indicator wasn’t working, drive gear was like a manual starting in 5th slowly letting the clutch out, reverse worked perfect.
What is the indicator light you're looking for. And where is it located
The indicator I’m talking about was on the dash that shows what gear you are in. I had no display of gears or indication of which gear I was in.
Have a 2011 Chevy Silverado I had the transmission rebuilt in 2020 and now it will only crawl! All gears work no codes popped up
i have the same problem i cant find out nothing
Got a 2003 4.3 4l60 trans stick in 2nd an 3rd gear changed all the sensors in the trans along with harness shifts fine sometimes but most the time it’s just stuck
I’ve heard of the shift solenoids going bad. You may want to check that.
So did you have to get that TMC programmed or you just put it in there and did that
You have to have the tcm programmed to your vin or it will not communicate with the ecu,bcm.
I'm chasing a problem with my shift indication on my dash as well. The little line that shoes under each gear position drops in and out. The truck is driving fine (no limp mode), but when the line goes out under the R indicator, my aftermarket backup camera doesn't work and cruise control drops out when the line drops out under D during Drive. It comes and goes and sometimes stays solid like there is nothing wrong at all. I have inspected as much of the associated wiring, but can't find any issues. I don't get any codes when I check with a standard engine scan tool. I am thinking it is the gear position switch inside the transmission or the TCM. The TCM is easier to access and it's about the same place. Any thoughts?
That sounds about the same as my issue. A tcm is under $150, if you’ve checked everything else I would try that before taking it to someone
@@TheShopWorldWide Yup. I saw your video and it pointed me to the TCM as a possibility. The noticeable difference of your situation is the limp mode, my truck drives normal. I'm hoping to find someone with detailed knowledge to eliminate one of my two choices. I must admit that swapping out the TCM is more attractive option though.
My poz cable may have arced out on my tcm. If so would that cause it not to turn on?
Yes it can fry the computer.
My 2007.5 Silverado won’t start at all not even like the clicking sound of a dead battery. No Indaxtor light on the dash sound what gear I’m in. Do you think it’s tcm?
I would think that would be more of an ECM problem. That controls the engine. Let us know what you find out!
I love rockauto too. Lol
I shop between rock auto, Amazon, and eBay before ever going to the parts store!
Everybody says my tcm on my 2009 gmc yukon is inside transmission but the part looks like the one on video transmission is a 40L60E
There’s 2 Computers on mine. One is the tcm, the other is the pcm. They look kinda similar, but $100 isn’t to bad for a replacement tcm (same price as diagnosis)
Question tony. Did you figure out where your tcm was located? I have a 09 yukon, looking for tcm. It's not located where this video shows
What's the mileage on the truck as of now and any issues since?
I’ve put 15k miles on the truck with no issues from the tcm….. It runs and drives great!
very informative, where did you get your TCM from?
store.allcomputerresources.com
@@TheShopWorldWide They will not rebuild one for a 3500.
@@TheBlackshoe967 that’s no good. We’re you able to source someone else that can?
@@TheShopWorldWide I found a company out of Canada that will refurbish it and reprogram it to my truck for a fee. The GM dealer both US and Canada said they were backlogged over 10,000 so it would be awhile. This place will send UPS labels and there is a 7 to 10 day turn around to rebuild it.
They were call Xemodex Technology
@@TheBlackshoe967 that’s great. I’m happy you found a solution.
Ive got a 2008 Silverado 1500. Checked some fuses and since no speedometer, no gear indicator light, ABS Indicator is on, runs sluggish and U0101 error code. On someone's advice I changed the speed sensor and it didnt fix the issue. Tomorrow, I'm gonna check wires to TCM, as I had recently checked fuse for A/C b4 issues started, which sounds similar to your story. Thanks for making the video.
Hopefully it leads you to a fix. Searching for fixes sucks! Good luck!!
Did you have any luck, exact same issues here.
And the fix is buy a New Battery...when your junky old battery doesn't start it the tcm has to be reset
Did you have to have the new TCM programmed by dealership? I’m being told it has to be done or it will lock transmission and to have it towed not to drive it to dealership. We ordered part now not sure what to do.
When I bought my replacement tcm online, it was programmed with my vin and options before being shipped to me.
Do you know if it can be driven without being programmed? It’s like 6 miles to the dealership.
@@BestLifeHappyLife70 I don’t believe it can, I would think if you were able to get the truck to run it would be in safe/limp mode and not go any where
Thank you
Hey do I need to have the tcm flashed or what? Should I buy used or new
I bought one that was flashed with my vin, it was less than $110 shipped to me.
Hey will share the link from where you get the tcm?
Could this also cause a p2769? The tcc has been replaced already but its still giving me the code so could the connector be a possibility?
From what I’ve read it could be wire related or your torque converter could be going out.
U ever fix that issue ?
What indicator are you talking about?
The indicator in the dash that shows which gear the transmission is in.
I’m having similar problems whit my
08 Chevy Silverado when the gear indicator light doesn’t come on my truck shifts hard in first gear but sometimes it come on and drives just fine when I clear the codes whit the computer the gear indicator light comes on and drives fine until it gos back off do you think it’s the same problem thank you
I would look at the connectors, wires/grounds, and then look at the tcm.
I’m having the same issue the I can see the gear Indicator
Why does my 2010 silverado 1500 4x4 5.3 not have one there?
Someone just commented the other day that he found out his is in the transmission. I’m not sure the specs on his truck, he did say he asked a gm mechanic which told him the location.
How easy is it to change the tcm? Is it just unplugging the wires? Or is there some bolts too? I'm hoping this is what's wrong with my 09 sierra
It’s simple just unhook it from the tabs and unplug it. The way you reinstall it is in this video
TCM INSTALL!!! Transmission Control Module (2008-2011GMC Sierra 1500)
czcams.com/video/_-RbhyF24vo/video.html
@@TheShopWorldWide I'll have to check the video out in the morning
@@TheShopWorldWide did your truck have the 6l80e in it?
@@stevemalm9502 yes mine has a 6l80e 4wd, dealing with any computer on the truck you have to use the vin to get the correct programming and set up for you truck.
@@TheShopWorldWide that's weird because my tcm isn't under the hood I asked about it in the gmc/chevy group I'm in on Facebook and one of the members said my truck has a techm in the transmission and not a tcm under the hood
Then it’s probably your neutral safety switch
Tcm fixed everything.
Is yours the 4 speed or 6 speed and where did you get the TCM from if you have a link?
I have a 4spd, I got my tcm from
store.allcomputerresources.com
@@TheShopWorldWide awesome thanks, i have a 12 5.3V8 and got the same code but can't find the TCM, i have same symptoms, stabilitrak and traction control lights on, no light under the shift indicator and backup camera not working, this video is informative but I have to see where mine is located thanks a bunch
@@eddiegonzalez9924 your tcm could be in your transmission. Gm changed things up and started putting them in side the transmission around 2012.
So check this out! After driving my truck for a few minutes, I reach in to grab my tcm, and its so hot about burned my finger tips to the bone!! Why????
It’s hot… just kidding, the engine bay is already hot, but those computers can also put out some heat. I don’t touch any thing in the engine bay if the truck isn’t cold.
Hey man where do you get the tcm module!
There should be a number on the tcm, if not it can be tracked down with using your vin number.
I can’t find a Tcm on my 2000 gmc do you have any idea where it’s at
Everything I’ve read says it’s under the hood on the driver side, like in the video
Who did you order your Tcm from ?
In the description
Have this code on 2018 silverado
I know the 2011+ have a different solution for the fix. Let us know what you find out!
I bent over a tall truck and I cracked a couple of ribs be careful
Ouch, that sucks
Where did you get the tcm and how much was it
store.allcomputerresources.com
$120
Did you have to get your tcm program?
Yes I had to order a reflashed tcm with the vin from my truck.
@@TheShopWorldWide where do you go to get it programmed?
@@bikelifegang6130 allcomputerresoures.com
I called them and gave them my vin and they did everything else
Will it make your heart not work to
Depends on what type of heart you have….
Where did you buy your TCM?
store.allcomputerresources.com
Any parasitic draw before it went out?
No, just hoped in to move it one day and the indicator wasn’t working on the dash and it was in a limp mode.
Will a 2011 tcm fit a 2013?
I’m not sure, from what I understand is there are certain tcm models and numbers that have the vin burned into them. You’ll have to contact a tcm reprogrammer and see what they say.
I Put Rebuilt Transmission 3 times Still Rimming Hot What Would case that
Which is running hot, engine or trans?
@@TheShopWorldWide my trans is any. Glule
@@terriphillips7526 Trans cooler built in radiator?
If so replace your radiator and go from there, I had a trans cooler crack inside of my radiator and was causing the trans to get hot at idle.
My new tcm is installed but when I put it in drive the light pops off again 🤷
The gear indicator lights?
@@TheShopWorldWide yes
@@jeffschroeder9089 hmmm id call the place you got the new tcm from
@@TheShopWorldWide you don’t have to program it or calibrate or anything like that?
@@jeffschroeder9089 it should be programmed to your vin for you vehicle
Where you get it from ? I think it have to be programmed help me 😢
In the description. Hopefully it gets you going!
@@TheShopWorldWide i hope I took it to the gmc but they said is my transmission is dont think so i got the code on , and it shows fuel pump code on and i replaced already
I'm having same symptoms with no speedometer. Where did you end up ordering it from? Still going strong?
store.allcomputerresources.com
No issues at all, running great! They have a great customer service with finding out what you need to know! Good luck!!
@@TheShopWorldWide Thanks!
Try your crank shaft sensor my speedometer was going all over the place and then at times stoped working but ended up being the crankshaft sensor it’s above the starter on the 5.3
@@jonathanontiveros5655 Was the transmission in limp mode with no dash indicators like P R N D?
@@jonathanontiveros5655 thanks for the additional info!!
P0700 it's the same ?
I can’t fully say it’s the same. I know my tcm went bad and I replaced it, which fixed my issue.
My TCM toy 2009 gmc sierra 1500 is inside the transmission
I don’t know why gm did that, they put TCMs outside and inside the trans.
U only temporarily repaired it! Run a ground wire to both TCM & PCM from battery preferably
It’s been good for the last 10k + miles. But if it happens again I’ll do that.
10 4
where does the ground connect to tcm and pcm?
I can’t locate my tcm on my 07 Escalade
Should be located on the back side of the engine bay near the battery.
How tf do you remove the blue connector lol
lol there’s a button on top of the connector and then you move the latch and it should come off, sometimes you have to GENTLY pry it off
@@TheShopWorldWide THAMK YOU I ALMOST RIPPED IT OFF OMG
You don’t have to flash them to vin.
Good info!!
Looked into one today it depends where you get your tcm from some will be pre flashed like on eBay but the ones from advance auto need to be flashed
@@dieseldawg7132 thanks for the info!!
Did your transmission fuse blow?
No my tcm went bad and had to be replaced. Not sure if it was just a fluke that caused it to go bad or if it was from having to just the truck off a few times.
Howdy, i have an automatic 07 5.3l 4×4 silverado new style and i have had a new transmission in for a few years. Now I have several codes being thrown but in regards to symptoms the truck selects all gears on dash (d,1,2,3,r) but has little to no power in 1st when in main drive. When i select 1st then 2nd then 3rd it will drive and if i try driving in the regular drive from a start it eventually starts shifting it just clunks shen it shifts but no grinding or slipping sounds. Some of the seemingly transmission based codes i have are p0977 and p0700 there are bunch of other codes though. Any idea or similar sympton experience? Thanks everyone stay blessed!
I don’t have any experience on a trans doing that. It does sound like it could be computer related.
@@TheShopWorldWide shift solenoids were bad
@@oharacare did that fix everything?
@@TheShopWorldWide yeah shes pulling the 6x12 big tex loaded with mowing gear no problem.
@@oharacare that’s great!
Lol I use a milk crate lol
I have a 2006 gmc yukon...only shifts from first to second...but!!! No indicator lights in dash🤔
I’ve read that is possibly an issue with the tcm as well.
Is that a TCM or an ECM?
Tcm, transmission control module
@@TheShopWorldWide thanks so it is sitting behind the actual ECM?
Also I have a 2011 avalanche that looks prettt similar would the TCM be located in the location
@@ramonvelasquez9189 hopefully this video helps you.
Name of song
Shoulders Closures by Gunnar Olsen
300,000
This is off topic but you sound just like Jason aldean😂
Ha!!!! To bad I can’t sing.
Of course YOU would say that
@@JameGoFast27 wym YOU do I know you or something😂
And my battery died quick for some reason
That’s not good. Hopefully your trans is still good. I’d refill it, and charge the battery, do the reset procedures and pray it’s fixed.
@@TheShopWorldWide Still not communicating. It only let me go 20mph
I may need a new tcm
@@toriwilliams500 if that’s after you tired to reset it, then you may need to order another one.
Possibly
I made biggest mistake buying one of these I see all this advice of these pieces of crap I have a brand new transmission 4000$ it shudders shakes don't shift right consumes oil and coolant with a rebuilt motor less than 1000 miles total crap stay away it's literally the worst vehicle I've ever owned. I'm not even changing the oil I'm done ill drive it till it dies and takes the plates off and I have no transmission light
I hate to hear that!!!