OBD Port Locks: Everything You Need To Know About The Data Port Locks!

Key Takeaway

  • OBD is a vehicle diagnostic system that can be used to access and control the internal computer systems of cars. Thieves can use this access to steal cars by using the OBD port.
  • Installing an OBD lock or data port lock is the best way to protect your car from theft, as it prevents access to the OBD port.

Last month, one of my neighbors had her car stolen, which made me look for all the possible ways to prevent my car from being stolen. While I read many interesting points, one thing that drew my maximum attention was data port locks. As a result, I made sure all my nears and dears, including my readers, were aware of data port locks and their benefits. 

Data port locks are an important part of protecting your car from theft. Car data port locks are designed to block access to the On-Board Diagnostics (OBD) port, which thieves use to access and steal cars. With a data port lock in place, it is virtually impossible to gain access to a vehicle’s OBD port and data without the correct code. No matter the level of force, an unauthorized person cannot remove the lock without the correct code.

In this blog post, we will cover everything you need to know about data port locks, from what OBD is, how thieves use it to steal cars, the benefits of a data port lock for car security, and how to install one on your vehicle. 

What is OBD?

What is OBD?
src- https://www.fiix.io/car-advice/articles/learning-about-your-obd-ii-port

OBD stands for On-Board Diagnostics, and it is a computerized system in cars that monitors the self performance and operation of the vehicle. This system can detect any issues and alert the driver with warning lights or messages. Technicians also use OBD to find out issues. 

The OBD system is connected to the car’s Data Port which is a small port located in the vehicle where diagnostic information can be accessed. Unfortunately, this same port is also vulnerable to theft, as criminals can use it to access the vehicle’s control systems and steal the car. To prevent this, an OBD lock, also known as an OBD port lock, can be installed.

How Do Thieves Steal Cars Through OBD Ports?

Thieves have become increasingly tech savvy in recent years and they are now using the OBD ports of cars to gain access and steal them. They typically use specialized devices to gain access to the OBD port and unlock the car. This can allow thieves to gain access to your car’s ignition, brakes, transmission, and more. With this access, a thief can bypass the regular locks, allowing them to steal the vehicle without having a key. In some cases, they may also be able to reprogram the key fob or electronic keys used to start the car. 

In order to prevent this from happening, many people opt for an OBD lock or OBD port lock. This type of lock is designed to be fitted over the OBD port, preventing any unauthorized access. The locks can be made from various materials such as metal, plastic, or even composite material, and they usually require a key or code in order to open them. By using an OBD lock, you can keep your vehicle secure and make it much harder for thieves to steal it.

What Is A Data Port Lock?

What Is A Data Port Lock?
src- https://www.tvl-ltd.co.uk/obd-port-protection-key-operated

A data port lock, also known as an OBD lock or OBD port lock, is a device that can be installed in an automobile’s OBD (On-Board Diagnostics) port to help prevent theft. The OBD port is a small connector that provides access to the car’s internal computer systems and can be used to reprogram the vehicle’s security settings. 

A data port lock works by blocking access to the OBD port and thus preventing thieves from gaining access to the car’s onboard systems. 

What Are The Benefits Of A Data Port Lock?

The benefit of using an OBD lock is that it adds an additional layer of security to your vehicle. The OBD port contains valuable information about the car, such as its make and model, mileage, engine details, and more. By locking this port, you can help protect this data from being accessed by anyone who doesn’t have the correct key. 

Many criminals will look for easy targets, and if they see an OBD port lock installed, they are less likely to target that particular vehicle. 

Knowing that you have taken an extra step to secure your car can be a great reassurance, especially if you park your car in public or unattended areas.

How To Install A Data Port Lock On A Vehicle?

Installing a data port lock on your vehicle is relatively straightforward and can be done in just a few simple steps. Before getting started, it is important to ensure you have the correct OBD lock for your specific make and model of vehicle. 

  • Step 1: Find your vehicle’s OBD port. The OBD port is usually located near the center console or near the gas pedal. Once you’ve located it, use a flathead screwdriver to pry open the plastic cover protecting the port gently.
     vehicle's OBD port
    src- https://learn.sparkfun.com/tutorials/getting-started-with-obd-ii/all
  • Step 2: Insert the OBD Lock into the port. Make sure that the locking mechanism is facing outward so that it will be visible when the cover is closed. Then slide the cover back over the port and lock it into place.
  • Step 3: Secure the OBD lock to the frame of your car. This will prevent someone from being able to remove it from the port. You can use cable ties, bolts, or any other secure fastening system.
  • Step 4: Test the OBD Lock to make sure that it is properly secured and functioning correctly. Once you’ve verified that it is working, you can then rest assured that your vehicle is protected from OBD Port theft.

Installing an OBD Lock is a simple and effective way to protect your vehicle from potential theft. This security measure can provide peace of mind knowing that your car is safe and secure at all times.

Frequently Asked Questions

Q1. Where is the OBD port lock located?

Answer – The OBD port lock is usually located under the dashboard on the driver’s side, although its position may differ depending on the car model. If you cannot locate it, you can always contact the car’s manufacturer for assistance. 

Q2. What information does the car data port provide?

Answer – This car data port offers data about the speed, emissions, mileage, and other issues that your car may be having. Additionally, it is used to install GPS trackers to keep track of where your vehicle is and how it is being used.


Data port locks are an effective way to protect your vehicle from OBD port theft. Installing an OBD lock or OBD port lock can give you peace of mind that your car is safe from thieves. It is important to remember that even with a data port lock, you should always take extra precautions to ensure your car’s security, such as parking in well-lit areas and avoiding leaving valuables in the car. Data port locks can give you extra security and help prevent your car from being stolen.

If you have any more queries about the safety of your vehicle using data port locks, write to me in the comment section. I shall gladly assist!

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Hey! I am Mark. Though I am not a locksmith by profession, but locks have always fascinated me since my teens. And it all started when I got locked out of my house and I had to pick the lock. Since then it has become my hobby to learn more about different kinds of locks, understand their working and methods to pick them up. In due course of time, I have also become better aware of how installing the right lock goes a long way in ensuring iron clad security. I aim to share my passion (about locks) through this blog. If you are also passionate about picking locks or are just looking to beef up the security, hop on the ride.