One of the essential parts of your car’s drivetrain system is the transmission control module (TCM). The TCM controls many things in your car, including your shifting pattern, how quickly you accelerate, and how quickly you shift gears. If you think your car’s TCM is beginning to malfunction, get it fixed ASAP to prevent more severe issues from occurring down the road. Here are some signs that your car’s TCM may fail.
What Is The Transmission Control Module (TCM)?
The transmission control module (TCM) is a vital component of your car’s transmission system, as it is essentially the computer system that controls the function of the transmission. It monitors and controls the transmission, ensuring it shifts smoothly and efficiently. Without the TCM, your car’s transmission would not be able to function correctly.
Erratic Shifting
Erratic shifting is one of the most common and apparent signs that your car’s TCM is failing. If your vehicle suddenly shifts gears erratically, it signals something is wrong with the transmission control module. The best thing to do in this situation is to take your car to a mechanic or dealership as soon as possible to have it checked out.
Transmission Won’t Shift.
If your car’s transmission doesn’t shift, it could be a sign that the transmission control module (TCM) is failing. The TCM is responsible for controlling the electronic components of the transmission. If it’s not working properly, the transmission may not shift correctly. If you notice that your car’s transmission isn’t shifting properly, take it to a mechanic to have it checked out.
Transmission Overheating
If your transmission starts to overheat, the TCM is failing could be a sign. The TCM regulates the flow of the transmission fluid, so if it’s not working correctly, the transmission can overheat. Other signs that the TCM is failing include:
- The powertrain light coming on.
- The car is stalling.
- Strange noises coming from the transmission.
If you notice any of these signs, take your car to a mechanic to have it checked out.
Trouble Downshifting
When you’re driving, and you go to shift gears, the transmission control module (TCM) is what tells your car how to do that. If the TCM isn’t working correctly, you may have trouble downshifting.
Your car’s TCM is vital to the function and performance of your car’s transmission. If you notice any signs of a failing TCM, get your vehicle to a qualified mechanic to diagnose and fix it.