2006 Chevy Cobalt Transmission Control Module Failure




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Pearl Gonzalez: My 2006 cobalt all of a sudden jumps when I step on the gas. sounds like it's losing power???

James Nemeth: Michael Hodges, No offense but your friend is just stupid. Only a crazy person would think anything like that... Truth is. anything electronic, failure is imminent eventually.

Michael Hodges: Friend told me they set the cars like this to steal money from customers. The miles are on the computer and they take their time on your wallet already preset

Nikki F: my check engine light just came on this morning. I own a 2006 Chevy Cobalt LT. 2 Dr.
should I go to Advanced Auto to let them test it?

Souleye Oudraogo: I turn the ignition on ..but the check engine light is off ..the problem is I was putting a new horn on the the the positive touched the body of the car nd now the problems started ..the car won't start at all ..what should I do ..u think that the pcm is scratched..

Joe Nardone: A friends car had a similar problem, researching I found that either a pitted fuse for the "transmission control Module or TCM"  or a loose wire can be and was our problem!!
The fuse was fine!! but one of the wires I aimlessly moved around did move, the car has worked well since, the problem is I don't know which wire it was!!! but have pinpointed where the problem is, "in our case"
Along side your transmission shifter on the passenger side is a panel to gain access to your Body Control Module or BCM. "  Google Colbalt BCM Location and check images"  the fuse number for the TCM is 25 if the fuse is ok then check for a loose wire in the BCM!! Hope this helps someone!!!

Martin Salas: para reparar este problema hay que abrir el modulo TCM, biene muy bien cerrado, pero hay que abrirlo y en la parte de adentro hay que soldarle un pequeño alambre que es el que hace la tierra con el conector exteror, se troza por eso marca este error, yo ya lo hise con mi carro y funciono

Juan Torres: Ive been having this problem. I took it to the dealer, the mechanic hasnt given me a call back. The scanner code that appeared was u0073 communicaton modle bus off. I called and emailed GM well as NHTSA. Just waiting for a response. I hope they make a recall on this issue its unsafe to drive like this. I did my own research. I came across that alot of people changed the TCM and problem was fixed. But some suggested to clean the fuse box the BCM and ECM. Check the ground wires and Transmission wires. I did that and drove the car a few blocks and it seemed ok.... For now... If the issue continues I guess I'll have to buy the TCM ugh. 

Amber Webster: Have the same problem here with a 2008 chevy cobalt never again in my life will i drive or own a chevy this never would have happened with a ford. Whats the fix to this

Brian Arrington:

My car has had this problem since 40k miles. It now has over 70k miles. Ill be driving down the interstate and the power steering will go out. This isnt safe, but when I called GM they said "tough luck". Report your problem to NHTSA at 18883273246 if they receive enough complaints GM will be forced to issue a recall. 

Leah Marrs Scott: VERY same problem with mine today. Had it fixed.  Got a new transmission control module. Works fine now. 

Gorgi Dimitrov: i have same prpblem.on my 06cobalt can you tell me how to fix 

Ivan Ortega: i have the same issue with my cobalt can u please help me out 

Texassince1836: Ignition switch will do this

Jaime Merino: Bad luck, mine is still great!

lisa robertson: Same problem with our 2005 Chevy cobalt. Bought this for our newly driving teen. Replaced the ecm and the tcm. Cleaned the ground wire to the ecm. Found that it was a fix for two weeks. While driving it will randomly loose all power steering. All of the gauges and lights go crazy. Transmission shifts very hard. The car stalls out. Also have a clicking noise in the transmission shifter all this goes on at the same time. Anyone have these same problems and found a fix for it? We only bought this car 19months ago. The car had just over 30 thousand miles on it and we have put about 1500 on it. My guess is that the previous owner was having the same problem and that is why the low mileage. I don't know .. but my 17year old draughts life is more important than any $$.

birdman3003: try disconnecting both battery posts for 20 minutes. this is to reset transmission control module. reconnect both battery posts and start car. the check engine light should go off. if your tcm was not previously dammaged then it should shift normal because it stores shift points and sends them to the transmission. if it does not shift as normal then you probably need to change the tcm...Please note, in trying this POSSIBLE SOLUTION, YOU ARE DOING SO AT YOUR OWN RISK. IT MAY BE BEST TO TAKE CAR TO A CERTIFIED MACHANIC!!!

Sandra Burleson: Found my 2007 Chevy Cobalt problem: it's not a Ford Ranger.

Alisa New: thanks for this, my car is doing this!!!! except i'm having trouble with my traction too! I'll check into the power steering issue though with my dealership!

EMT: Thanks! They sometimes skip corners and take the easy way. If they ever did that, I suggest you consult with a paralegal or lawyer. This way they won't be able to cheat you.
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2006 Chevy Cobalt Transmission Control Module failure 5 out of 5

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