Have you encountered issues with resetting the transmission control module in Chevy Silverado?
No need to be anxious! You can carry out this reset in simple DIY steps, which we will list in this article.
Today, we will discuss the DIY method of how to reset Transmission Control Module Chevy Silverado.
It is important to carry out other checks to ensure that your vehicle is properly functioning.
This article will examine the definition of a transmission control module, its importance, signs to look for, and steps on how to reset Transmission Control Module Chevy Silverado 1500.
- 1 What Is Transmission Control Module (TCM)?
- 2 Where is the Chevy Transmission Control Module Located?
- 3 Why is TCM Important for a Vehicle?
- 4 What Are the Signs of a Bad Transmission Control Module?
- 5 How to Reset Transmission Control Module Chevy Silverado: Step by Step
- 6 What Causes the Vehicle’s TCM to Have Problems?
- 7 FAQs About How To Reset Transmission Control Module Chevy Silverado
- 7.0.1 01. Will disconnecting the battery reset the TCM?
- 7.0.2 02. Will this work on all Chevy Silverado models?
- 7.0.3 03. Why Does the Transmission Control Module Need Resetting?
- 7.0.4 04. How much time and money does it cost to reset the TCM of Chevy Silverado?
- 7.0.5 05. How often should you perform this reset?
- 8 Conclusion
What Is Transmission Control Module (TCM)?
The transmission control module is a type of engine control unit responsible for the automatic transmission in your vehicle.
The module functions with many sensors such as the vehicle speed sensor, wheel speed sensor, throttle position sensor and so on to help the vehicle when changing gear.
These sensors feed data to the module to help it calculate when to change gear.
In short, the transmission control module functions as a timer for the gear shift.
Before TCM, many vehicles used hydromechanical controls.
In essence, this meant that the human functioned as the timer to decide when to change the vehicle’s gear.
The upgrade to the transmission control modules in vehicles means that vehicles have better performance, better fuel economy, decreased emission and a more reliable gear shift than the hydromechanical modules.
In addition, the transmission control module is programmed to send error codes to your car system in case of a malfunction with the transmission unit.
There may be damage with one or two sensors in the car or damage in the module itself and may require a replacement.
Where this occurs, you would usually notice inefficiency in the gear system, including failure to change gear and other transmission issues.
Where is the Chevy Transmission Control Module Located?
The 4l60e transmission control module location is in the rear of the TCM case, underneath its cover just below the ECU.
Why is TCM Important for a Vehicle?
The TCM acts like a processor with memory and circuits to collect data and give data to other systems in your vehicle.
The TCM collects data from the vehicle speed sensor, wheel speed sensor, turbine speed sensor, transmission fluid temperature sensor and son, and feeds the engine control units and other systems to facilitate gear change.
Firstly, the transmission control module is solely responsible for gear change, without which your vehicle will fail to change its gear and will not perform properly.
Sometimes a faulty or bad transmission could mean the vehicle is stuck at neutral, which could cause serious friction and damage the vehicle system.
In addition, as earlier emphasized, the TCM works with other sensors to ensure optimal performance like fuel efficiency, decreased emission, etc.
Where there is no TCM, or it is faulty, the vehicle may be stuck in a particular gear for a long, which may cause the car to consume more fuel.
Finally, TCM gives the driver a great driver experience.
Since the driver is no longer focused on manually changing the transmission (which is now done by the TCM), they can focus on other aspects of driving.
What Are the Signs of a Bad Transmission Control Module?
Earlier in this article, we briefly mentioned the consequence of a bad transmission module.
When you suspect that your vehicle has a bad transmission control module, there are signs to look for.
The following are signs of a bad transmission control module-
01. Check Engine Warning Light
The Check engine warning light does not always mean that your transmission control modules are faulty.
With a couple of other signs like difficulty in changing gear and transmission issues, this could be a sign that your transmission control module is faulty.
The check engine light in your Chevy Silverado will appear on the screen of your vehicle dashboard.
You can use an OBD II scan tool to check for a trouble code or error to determine if it’s an issue with the transmission control module.
It would be best if you looked for the error code P0700.
You should know that your transmission module is bad where this occurs.
02. Stuck on the Same Gear
This can be very problematic for drivers and result in a bad driver experience and fuel efficiency.
You will experience here that you are either stuck in neutral or cannot move past first gear.
When you experience this, you have a problem with your transmission control module.
03. Problematic and Delayed Gear Shift
When your Chevy Silverado experiences a problematic or delayed gear shift, then this is a sign that your transmission control module is faulty.
In this stage, you would experience difficulties shifting to the next gear or a delayed response in shifting to the next gear.
Also, there will be difficulties accelerating as your vehicle relies a lot on the gear shift.
This makes it difficult to downshift to generate more torque for acceleration.
04. Difficulty with Downshifting
The process of downshifting is crucial in driving and acceleration.
Downshifting is when the automatic transmission shifts to a lower gear, which increases the torque and gives you more room for acceleration and better control of the vehicle during acceleration.
To better explain downshifting, where you are accelerating on a highway and then decide to slow down, the gear usually automatically decreases till when you reach a final stop, in which case your vehicle would be at first gear.
If you experience an issue with downshifting, your vehicle’s transmission control module is faulty.
05. Difficulty with Shifting Into a Higher Gear
When accelerating, your vehicle is also programmed to increase its gear gradually.
This may not be the case with a bad transmission control module in a Chevy Silverado.
The impact of this is that your Chevy Silverado will never attain a certain speed as each gear has a maximum speed it can reach.
How to Reset Transmission Control Module Chevy Silverado: Step by Step
You would usually need to reset the transmission control module of your Chevy Silverado when you just replaced it with a new one.
This method involves resetting and teaching your car TCM to function efficiently and effectively.
In the subsequent list, we shall briefly list and explain steps to follow to reset the TCM of your Chevy vehicle:
So, how do you reset a transmission control module?
Follow these steps to reset the TCM.
Step 1: Insert Key and Turn to Position 2
The first step in resetting your Chevy Silverado’s transmission control module is to first slide your key in the ignition and set it to position 2.
In this first step, you do not need to start your vehicle.
Ensure that the dashboard light is lit up.
Also, ensure that your key is indeed positioned to 2.
To do this, listen to the click as you turn the key.
The second click is position 2.
If there are any error lights, they will appear here.
Step 2: Step on the Accelerator Pedal
It is also known as the gas pedal. Place a foot on the pedal and gently press down.
Make sure that you have pressed the pedal down.
Keep your leg on the depressed pedal to activate the kick-down switch, and don’t lift your leg till about 15 to 30 seconds.
Step 3: Turn Off the Key Without Lifting Your Leg From a Pedal
After pressing your key on the pedal for about 15-30 seconds, go ahead and turn off the key.
Do this without lifting your leg from the accelerator pedal.
Once you have shifted the key back to position 0, you have completed step 3 of this reset, and you are ready for step 4.
Step 4: Release the Acceleration Pedal.
Remember to turn your key to position zero before performing this step.
Failure to do this will mean that you will have to start this procedure again for it to work effectively.
Now, if you wonder whether to remove your foot from the pedal slowly or hurriedly do so, there are no worries here.
There is no specific way to remove your foot here, so feel free to pick any method as long as the key is turned to position zero before taking your foot off the pedal.
That being done, we can move to the next step.
This step will require your patience.
Step 5: Wait Patiently
It’s time to test your patience. The waiting period allows your Chevy Silverado to rest and simplify the procedure.
The rest period will usually take 3-5 minutes.
Any longer could mean that there is a physical fault on the TCM.
Make sure to take note of the waiting period.
It is important to emphasize that your car key is left in the ignition hole and put in position zero during this step.
If you have mistakenly removed the key during this process, you can just carefully insert the key and start this process.
You may experience some delay, but that is okay.
Final Step: Drive and Calibrate
The last step to reset the TCM of your Chevy Silverado is to drive the vehicle.
Don’t get scared about the calibration.
Calibration is just a way of your vehicle telling its system and sensors to re-adjust and reset to work efficiently.
At this stage, we can say that your Chevy Silverado re-learns how you drive and control the vehicle.
The drive is expected to last between 10-15 minutes for the car to learn your driving method completely.
Take your time to drive slowly and allow your car to adapt carefully.
Compare this process to teaching a child how to walk.
However, you don’t need to take months to teach your car how to drive properly.
Just take it easy.
We also recommend keeping to a specific speed and avoiding acceleration during this final stage.
If there is no physical damage to your Chevy Silverado TCM, this method should easily solve the issue.
You can start driving your car as nothing happened.
What Causes the Vehicle’s TCM to Have Problems?
Many things could damage the transmission control module of your Chevy Silverado.
Firstly, excessive vibration can reduce the lifespan and, therefore, damage your TCM.
TCM is usually bolted on the vehicle chassis, and too much vibration will put excessive stress on the bolt, later leading to damage.
Many design analysts and engineers have argued that this vibration could lead to fatigue of the TCM.
Secondly, water getting into the transmission control module could lead to short and eventual damage of the TCM.
Where there is water damage to your TCM, you may need to replace the TCM of your Chevy Silverado.
Next, Voltage overload could cause damage to your TCM.
This occurs when more voltage than the TCM is designed to carry is let into the device.
This will usually cause burnout or circuit burnout.
A repair could be done, but you will be required to replace the TCM in most cases.
Finally, when a short in solenoid occurs.
This is the opposite of Overload.
This occurred when a lower voltage than the TCM was designed to damage the solenoid found in the TCM.
FAQs About How To Reset Transmission Control Module Chevy Silverado
01. Will disconnecting the battery reset the TCM?
Disconnecting your car battery will not reset your car’s TCM.
For you to reset your car’s TCM, we recommend following the steps listed in this article.
Battery disconnection is not capable of any gearing or TCM resets.
02. Will this work on all Chevy Silverado models?
Yes, this method listed in the article should work on all Chevy Silverado models.
If you face any difficulty resetting your Chevy Silverado’s TCM, we recommend taking your car to any Chevrolet service center to get it checked and properly reset.
03. Why Does the Transmission Control Module Need Resetting?
Most later models of the Chevy Silverado(the post-1990) came with a dedicated TCM mounted on the car.
This TCM spends its time learning the driver’s technique and processing the data gotten from the TCM.
Replacing the TCM with a new one will require the new one to adapt and learn many things.
The new TCM does this during resetting.
Failure to reset the transmission could lead to transmission failure.
04. How much time and money does it cost to reset the TCM of Chevy Silverado?
Resetting the TCM of your Chevy Silverado will usually cost between $200 and $1000.
This will cover the cost of the new TCM and the installation cost.
A professional should complete the reset between 20-30 min.
A learner should complete the step.
05. How often should you perform this reset?
We recommend performing a reset if you have just replaced your TCM with a new one.
Also, where an error code was resolved, you are advised to carry out a reset.
In this article, we have listed steps to reset the transmission control module in Chevy Silverado.
Readers who follow the steps listed should easily rest their TCM and get their vehicle working more efficiently.
You don’t need to be a mechanic or have any engineering knowledge to carry out these steps.