Resetting a transmission control module is actually pretty easy to do yourself. If you’re looking to reset your Chevy TCM, then this is the guide for you! This guide also functions for other vehicles, not just Chevrolets. Show
Before we dive into how you reset a transmission control module, it’s important to understand some vehicles have more complex systems where you’re not supposed to disconnect power from the battery. These systems are designed to have constant power from the battery and disconnecting the power source could lead to issues. Please do research on your vehicle model to see if it’s okay to disconnect the battery.
There are a few ways to reset the transmission control module in a Chevy. Below, we outline the most common method. Step 1: Turn key positionThe first thing you want to do is place your key in the ignition and turn it twice so all of the lights on the dashboard illuminate. Do not start your vehicle yet. Step 2: Foot on the gas pedalNext, step down the gas pedal. Continue to do so until you activate the kick-down switch, you should hear a click – push the gas pedal past the click. Your foot should be basically touching the floor. Keep the gas pedal pushed down for 10 – 15 seconds. Step 3: Turn key off and release gas pedalNow with the gas pedal pushed down, turn the key back off and release the gas pedal. Step 4: WaitNow for the fun part – you wait. Don’t open the door, don’t play with your phone, don’t breathe! It’s important you don’t disturb any of the vehicle’s electrical systems. Wait 2 – 5 minutes. Step 5: Ready to driveNow you know how to reset a transmission control module. Once you perform this procedure the Engine Control Unit (ECU) and Transmission Control Unit (TCU) will work together to learn how you drive by monitoring your driving pattern. Your vehicle is ready to be driven. It’s important to just drive normally so your transmission can learn and react to your throttle input in the way you want it to. If these steps didn’t work, there could be an issue with other components of your ECU. Here is a handy video showing you the engine control unit process and how to reset the ECUs. 4l60e Transmission Control Module Location The transmission control module in a 4l60e transmission is typically located on the rear of the transmission case, directly under its cover. It is found beneath the engine control module. It may also be found near the battery or center console inside a car, depending on the vehicle model. 4l60e transmission specsThe 4L60E from General Motors is an evolution of the Turbo-Hydramatic 700R4 and replaced the tried and true TH350. The advantages over the TH350 include lower gear ratios, improved valve body, addition of fourth gear (overdrive), a lockup torque converter which makes it popular choice for street performance or retrofitting 400-700 HP depending on year and internal modifications. 4L60E / 4L65E Specs
Gear Ratios:
ConclusionResetting the transmission control module is a lot easier than you may think. You don’t need to be an expert mechanic or have access to expensive tools and equipment, all it takes is some time and the right instructions. We recommend that if you are unsure of yourself or feel uncomfortable working under the hood, take your car in for service with a professional who specializes in transmissions. FAQsWhat makes a transmission control module go bad?There are various reasons a TCM could go bad. Since automatic transmissions rely on computers for the majority of their functions, electrical issues are usually the cause:
Will a bad transmission control module throw a code?Oftentimes, a bad transmission control module will throw an error code. If you use an ODB-II scanner, you will typically see these codes: P0613, P0700, and P0706. Check the driver’s manual or search for your car model on how to reset this type of engine warning light/code. Does a transmission control module need to be programmed?This depends on the model of the vehicle. Older, pre-1990 vehicles used removable PROM chips, which provided stored powertrain information specific to the vehicle. Later vehicles started using EEPROM and other non-removable storage. Most of these new vehicles, especially the ones with a 6-speed automatic transmission, use a dedicated transmission control module that is mounted to the valve body. When you install a new transmission control module in these vehicles, it must be programmed with dealer-level equipment. Your vehicle must also be towed to the dealership for the programming process to be completed. If you risk driving your vehicle to the dealership without proper programming, you could cause premature transmission failure. How long does it take to reprogram a transmission control module?If the repair shop has the right information and tools from the manufacturer, the reset process takes anywhere from 30 minutes to an hour, depending on the make and model. Will disconnecting the battery reset TCM?Simply disconnecting the battery would not return the TCM to its default settings, you would need to use a transmission scan method to do so. Disconnecting the battery terminals will not complete the phase or solve any gear shift issue. How much does it cost to reprogram a transmission control module?Prices vary for how much it will cost to reprogram a TCM, this can depend on how old the vehicle is and how difficult it would be to access. Typically changing the TCM will cost you anywhere from $210 – $1,100. How do I reset my transmission control module?Tips When Resetting A Transmission Control Module
You can reset it by taking off the position of its power supply for more than five minutes and then turning it on. It is possible to do it five times till the engine is thoroughly warm, but you should avoid it in low temperatures.
Why would you reset your transmission?Carrying out reset and relearn is important to prevent transmissions failure after fluid change.
Do transmission control modules need to be programmed?When you install a new TCM in these vehicles, it must be programmed with dealer-level equipment or equivalent, and the programming must be performed on the vehicle. What's more, you should never try to drive the vehicle to the dealership after the repair; it may cause premature transmission failure.
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