Mazda 3 TCM (2006-2014) Easy Transmission Control Module Repair

What is a TCM Transmission Control Module or TCU Transmission Control Unit?

If you're needing a (2006-2014) Mazda 3 TCM Transmission Control Module Repair, you've come to the right place!

To begin with, if you're not already aware, your TCM Transmission Control Module or TCU Transmission Control Unit (whichever you prefer to call it) is a vital part of your car. TCMs or TCUs are what keep your vehicle running by providing power to the vehicle's wheels. Its primary responsibility is to calculate the right time and place to shift gears for smooth driving. Therefore, without it or when the part is defective, an automatic transmission cannot shift gears so the vehicle cannot function properly.

Why do Mazda 3 Transmission Control Modules Fail?

It is very well known that Mazda 3's are notorious for their TCMs (Transmission Control Modules) failing due to them being fastened directly to the automatic transmission casing.

What does that mean and what does it have to do with why you need to repair your TCM TCU?

Consequently, when your TCM TCU is mounted right on top of the transmission casing, it causes the control module to overheat from insufficient heat dissipation. The long-term exposure to so much heat is what causes them to go bad.

Symptoms of a Bad TCM

To Repair or Replace a Transmission Control Module (TCM)?

Once you diagnose that the issue with your vehicle is indeed the TCM TCU, you then have to decide if you want to repair or replace the part.

Oftentimes auto part stores and dealerships will encourage you to replace your TCM as the only option, so for those who prefer OEM (Original Equipment Manufacturer) parts be aware. But the truth is replacement is unnecessary and you'll end up spending both more time and money than you have to.

Currently, consumers have reported that Mazda dealerships charge $1,500 - $2,000 for OEM TCM replacements and due to current global shipping shortages, their parts are always on backorder. In addition, when you replace your TCM, your old one is likely to end up in a landfill so we recommend UPFIXing your OEM TCM.

On the other hand, companies like us that recycle and repair original parts to reuse exist because of poorly designed electronic systems. This is due to manufacturers cutting costs to increase revenue and simple manufacturing design flaws that generally lead to units failing. In general, when repairing Mazda 3 (2006-2014) TCMs, most of our competitors will install rubber washers where the 3 screws go.

Unfortunately, this simple modification doesn't really solve the heat or vibration transfer issue causing the TCM fail to begin with. If you don't move the location of the TCM, you're likely to experience the same issue again later on down the road.

*IMPORTANT* In conclusion, professionals here at Upfix highly recommend relocating the TCM once you receive your repaired part back!!! Remounting it to the brake lines is key in addition to the repair for it to last as it allows for more heat dissipation for your parts' longevity. Unless TCM is reinstalled in a different area, it is very likely it will fail again.

How We Can Help | "Don't replace your parts- UpFix them!"

Place your order TODAY for your fast and easy TCM transmission control module repair on our website listed below! Make sure you have your part numbers and fault codes from the diagnostic scan to share with us. Ensure you enter your personal information accurately so you can your part repaired and returned in 4-7 business days!

Once you receive your returned part, no additional programming will be required after the repair. Your TCM will be plug-and-play once re-installed back into your vehicle.

UpFix also offers a TCM Transmission Control Module Exchange Service for those that cannot go without their vehicles.

Common Mazda 3 TCM TCU Codes

Part Numbers We Service

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