You may find that you have a whole range of issues with your gear shifting and all of these can be linked back to a faulty or damaged TCM. The TCM is responsible for sending shifting signals in your vehicle which is vitally important to ensure that you are driving safely. The TCM is responsible for shiting the gearbox to allow your vehicle to run at the most fuel-efficient levels, but when it is failing or damaged then it will no longer be able to optimize the best shifting patterns to improve your fuel economy. If your vehicle has been suffering from poor fuel economy then this can be a big indicator that your transmission control module is struggling. If you have spotted one or more of the following symptoms then your Chevy’s TCM may be damaged or completely broken. There is a variety of signs that your transmission control module is defective and these may often be overlooked and blamed on another aspect of the vehicle. Signs and Symptoms of a Bad Transmission Control Module You would be alerted to these malfunctions by illuminated lights on your dashboard such as the check engine light. Meaning it ensures that your vehicle provides peak performance.Īnother key function of the TCM is to detect any malfunctions or other issues with your transmission system. The sensors that work with your TCM are the accelerator pedal sensor, turbine sensor, throttle position sensor, and transmission fluid temperature sensor.Īll of these sensors send data to your TCM which it uses to calculate optimal gear shifting. What Is a Transmission Control Module or TCMĪ transmission control module interprets data from sensors on your vehicle. Now remove the key, slowly release the gas pedal and wait for 2-5 minutes.Īlternatively, you can try disconnecting the battery and let the computer run out of charge by waiting 5-30 minutes. To reset a Chevy transmission control module, set the ignition key to on, and gradually depress the gas pedal. There are a few simple steps to follow and your TCM problems should be in the past. Resetting the transmission control module in your chevy is not a complicated task and can be completed by a DIYer. If you want to know how to reset a Chevy transmission control module then you will need to know to do it correctly as the high number of parts in this device can create a number of errors. Transmission control modules (TCM) can be expensive to fix and is the reason why many people choose to repair them at home to save money.
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