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Thursday, February 29, 2024

Finding the Port on Your Key Fob Programming Tool

A key fob is a device that serves many purposes, such as locking and unlocking your car. But before you can use it, it must be programmed to work with your car’s electronics.

The process can be easy if you know what to do. But it can also be complicated, depending on the model of your vehicle.


OBD2 (On-Board Diagnostics) is a standard interface to the vehicle’s engine and other systems. It is used by a wide range of tools to monitor and analyze vehicle data.

There are many different levels of scan tools, ranging from simple code readers like the FIXD OBD2 scanner and app to professional scan tools that are far more expensive than the average home hobbyist’s budget.

Generally, these tools can access more than just the engine and other systems – they can also read diagnostic trouble codes. This is a valuable resource, as it helps identify malfunctioning parts and systems and can be helpful when trying to fix a problem yourself.

Key fob programming tools are useful when a module is replaced or reflashed, as they can also program the new module onto the car’s key. This can help avoid a loss of key information and saves money in the long run.


The OBD port on your car connects to the engine’s computers and enables it to self-diagnose and report errors that could affect your driving. It also gives you access to a variety of data, from smog tests to battery and engine performance information, all stored as diagnostic trouble codes.

A wide range of OBD tools are available to access the data on your vehicle. There are generic consumer level scanners, sophisticated OEM dealership tools and vehicle telematic devices.

In terms of performance, the best OBD2 scan tools provide pro-grade functionality at a consumer price point. They can read and clear a variety of OBD trouble codes, perform an emissions test and show live data from the engine, airbags, tires and other systems.

One of the most important things to consider when choosing a key fob programming tool is the port it uses. This port can be found on your vehicle’s instrument panel or under your dash.


Despite what many people think, the port on your key fob programming tool is not always accessible. In fact, there are several reasons why you might not be able to program your keys without the help of an automotive technician.

First, there are many telematics devices that connect to your car through the OBD II port. These devices do everything from tracking your fuel efficiency to preventing unsafe driving.

Second, it is also a common place for trouble codes to be stored by your vehicle. This information can help a shop diagnose and fix issues with your vehicle.

The third reason that a key coding tool might be necessary at your shop is because you may need to reprogram a key or fob when it has been damaged or replaced. This is often called key cloning.


As more vehicles come on the market with remote fobs and proximity keys, locksmith and repair shops need to have a key programming tool at their disposal. The need to be able to program these types of vehicles isn’t limited to any particular situation, but three situations in particular might require you to have this capability at your shop:

First, there are some no-start diagnostics where reprogramming the key might be necessary after a module was replaced. Second, a customer might have lost all of their original keys and need to get a replacement.

These functions allow you to program a new set of remote controls and key fobs from the vehicle’s memory or deactivate the old ones if they have malfunctioned. They also enable you to clone an existing key and generate a blank that will work with the vehicle.

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