Are you looking to unlock the full potential of your SCT X4 Tuner? Then read on! If you’re an experienced tuner and you’ve been wanting to do the work yourself, then this article is for you.
We’ll explain how to unlock your SCT X4 Tuner yourself, step-by-step so that you can get the most out of your tuning experience. Let’s begin!
Table of Contents
What is an Sct x4 tuner?
The sct x4 tuner is a stock device that allows you to read the real-time data of your vehicle. It lets you detect and check valuable sensor data like air/fuel ratio, EGT, etc.
The Sct x4 is a superior model to the previous generation Sct x3. The sct x4 device lets the user use the dyno-proven tune files to maximize the torque and horsepower.
Another great feature of these great sct tuners is that they can deal with error codes very easily. That results in greater control of your vehicle’s overall performance.
Why Use an SCT Tuner?
If you are a performance enthusiast looking to unlock your vehicle’s hidden potential, opting for an SCT tuner is the way to go.
The sct device directly connects to your car’s computing system via the OBD-II port. This lets you have full control of the performance of your car.
And if you have made a recent change or update to your car performance, then you should have a powerful tool like sct x4 in your arsenal.
And the thing that makes sct x4 superior is its simplicity of installation. So if you are looking for the sct x4 tuning guide for your vehicle’s computer, check the rest of the article out.
How to Unlock Sct X4 Tuner Yourself?

Acquire the Necessary Equipment
Unlocking your SCT X4 tuner is an easy process that requires very little technical know-how. The first step to unlocking your device is acquiring the necessary equipment. You’ll need an OBD2 cable, a laptop or computer with a USB port, and the appropriate software installed on it. Once you have all of these items, you can begin the unlocking process.
The OBD2 cable allows for communication between your vehicle’s engine control unit (ECU) and computer. This connection will allow you to access diagnostic information from your vehicle’s ECU as well as upload custom tunes created by the SCT X4 tuning software onto your vehicle’s ECU. The laptop or computer acts as a host for both sending data to and receiving data from the tuner via its USB port.
Lastly, make sure you have downloaded and installed the latest version of SCT’s tuning software on whatever device you are using before beginning this process so that everything runs smoothly during the programming of your device.
Install the SCT X4 Tuner
Installing the SCT X4 Tuner is the first step in unlocking its features and taking advantage of all that it has to offer. It’s important that you follow these instructions carefully in order to ensure a successful installation.
First, remove your vehicle’s negative battery cable and wait for at least five minutes before proceeding. This will help prevent any power surges or damage to your computer system while installing the SCT X4 Tuner.
Next, plug the OBDII connector into your vehicle’s diagnostic port located beneath the dashboard on most cars. Once done, connect the USB end of the device to an open USB port on your computer and install any software needed by following provided instructions from the SCT Performance website downloads section.
After everything is installed correctly, reinstall your car battery cable back onto its terminal; this will allow you to power up both devices simultaneously so they can communicate with each other properly via Bluetooth connection once setup is complete. Now you are ready to start using all of its amazing features!
Connect to Your Vehicle’s Computer
Before you can use the SCT X4 tuner to make changes to your vehicle’s computer, you need to be able to connect it. To do this, first, open the hood and locate your vehicle’s diagnostic port. This is usually located near the firewall on the driver’s side of your engine compartment.
Once you have identified it, plug one end of a USB cable into your laptop or desktop computer and then plug the other end into the SCT X4 tuner. Next, take another USB cable and attach one end to an available power source in your car such as a 12V auxiliary port or cigarette lighter socket (note: if using a cigarette lighter socket, ensure that its voltage is greater than 9 volts).
Then attach the other end of this second USB cable to the SCT X4 tuner unit itself. At this point, turn on both devices (your laptop/desktop computer and SCT X4) so that they are powered up and ready for communication with each other.
Now when you launch software such as LiveLink Gen II or Ford IDS VCM Suite on either device, they should automatically detect each other’s presence over their shared connection via Bluetooth technology – allowing them to exchange data back and forth between themselves without any further user intervention required!
Update the Software
Updating the software is an important step if you want to unlock your Sct X4 tuner yourself. To do this, you will need to connect the tuner to a computer via USB and download the latest version of the software from SCT’s website.
Once downloaded, install it on your computer and follow any on-screen instructions for updating. After that, open up your SCT X4 tuner program and select “Update” from the main menu. This will automatically detect any available updates for your device and begin downloading them onto it.
When finished, restart your computer as well as disconnect and reconnect your device so that all changes can take effect properly. By doing this regularly, you can ensure that everything about your SCT X4 remains up to date with no problems whatsoever!
Unlock Your SCT X4 Tuner
Unlocking your SCT X4 Tuner may seem like a daunting task, but it is actually quite simple. First, you will need to download the software from the manufacturer’s website onto your computer or laptop. Once this is done, connect your X4 tuner to your laptop via USB and open the software.
You should be presented with a list of options for unlocking; select “Unlock Now” and follow the on-screen instructions. It’s important that you have an active internet connection during this process as it requires access to SCT’s servers in order to complete it successfully.
After following all steps correctly, your X4 tuner should now be unlocked and ready for use! Unlocking yourself can save time and money compared to having a professional do it for you, so take advantage of this opportunity!
Modify and Create Custom Maps
Once you’ve connected the SCT X4 Tuner to your vehicle and unlocked it, the next step is to modify and create custom maps. This will allow you to fine-tune your engine for optimal performance. The process requires a few steps but can be completed with relative ease. First, you will need to connect the tuner to your laptop or desktop computer via a USB cable.
Then launch the SCT tuning software that comes with the device and use it to open any existing or past map files that are installed on your computer. You can then go into each parameter of these maps and make modifications as needed such as rev limiters, air/fuel ratios, spark advance curves, etc., until you have created a custom map tailored specifically for your engine setup.
Once finished, save this new file onto a folder in your computer so that it can be loaded onto the X4 tuner later on when ready for installation onto your vehicle’s ECU (engine control unit). With this done, you now have all of the tools necessary to unlock the SCT X4 Tuner yourself!
How do I know if my SCT X4 tuner is unlocked?
To check whether your sct x4 tuner is unlocked, go to the device’s main menu. There you can see the firmware information. There you can see how many unlocks are left and other information you might find useful to tune your truck.
How do I reset my SCT X4 tuner?
To reset your tuner, power up your x4. Then go into the device settings and scroll down. At the bottom of that menu, you will find an option called “Factory reset”. Clicking on this will reset your tuner.
How do I get more unlocks on the SCT tuner?
The tuners usually come with 5 unlocks per device. If you want to get more unlocks on the tuner, you will have to pay a fee of 150 USD. But check whether the tuner is married to the previous owner’s car if you buy a used model.
How do I unlock my SCT X4?
You can unlock all the non-ford models remotely by calling the service provided. If you are dealing with a BDX or ford Powerstroke, you can buy the unlock online without hassle.
Final Thoughts
Unlocking your SCT X4 Tuner yourself is a great way to save time and money. With the right tools, like an OBD2 scanner and the correct software, you can unlock your tuner in minutes.
It’s important to remember that unlocking your tuner will void any existing warranty or guarantee on it, so make sure you know what risks are involved before proceeding with this process.
If done correctly though, unlocking your SCT X4 Tuner yourself can be a rewarding experience both financially and experientially as you get deeper into engine tuning and performance modifications.
I’m Md Nurul Islam, a blogger, and automotive enthusiast also. I started creating this website because I have always loved cars and bikes.