Getting a new key fob for your Mitsubishi or needing to reprogram an existing one can seem like a daunting task. Many vehicle owners immediately assume it requires an expensive trip to the dealership. The good news is that for many Mitsubishi models, this is a straightforward process you can easily do yourself in just a few minutes with no special tools.
This DIY approach not only saves you a significant amount of money but also gives you the satisfaction of a job well done. This guide will walk you through the entire process, providing clear, beginner-friendly instructions on how to program a mitsubishi key fob, getting you back on the road with full remote functionality.
Programming your Mitsubishi key fob at home might seem like a daunting task, but it’s actually simpler than you might think. With the right steps, you can save yourself a trip to the dealership and avoid unnecessary expenses. All it takes is a few minutes of your time and the willingness to follow some straightforward instructions. By the end of this guide, you’ll have a fully functional key fob and a better understanding of how the process works.
When Seeking Professional Help
If you encounter any issues while programming your Mitsubishi key fob or feel uncertain about the process, seeking professional help is always a reliable option. Professional locksmiths or your local Mitsubishi dealership have the expertise and tools needed to program key fobs efficiently.
While this option might come with additional costs, it ensures the job is done correctly and saves you from potential frustrations. Additionally, professionals can offer guidance if there are hardware malfunctions or other underlying issues with the key fob. Don’t hesitate to reach out for assistance if necessary—it’s better to have peace of mind knowing your key fob is functioning properly.
Step-by-Step Guide on How to Program a Mitsubishi Key Fob
Step 1: Gather Your Keys and Prepare the Vehicle
Before you begin the programming sequence, it is essential to prepare your vehicle and gather everything you need. You will need your original, working ignition key and all the key fobs you wish to program for the vehicle, including any existing ones that are already working. It is important to program all remotes at the same time, as this process will often erase any previously stored codes. Make sure all the car doors are closed and unlocked. Get into the driver’s seat and have all the keys and remotes within easy reach to complete the upcoming steps smoothly.
Step 2: Locate the OBD Port
The key to initiating the programming mode on many Mitsubishi vehicles is the On-Board Diagnostics (OBD) port. This is the same port that mechanics use to connect a scanner and read engine codes. In most Mitsubishi models, such as the Outlander, Lancer, or Eclipse, you will find this port located under the dashboard on the driver’s side, usually to the left of the steering column. It is a 16-pin trapezoidal connector. You might need to look carefully, as it can be tucked away. Knowing its location is crucial for the next step in the sequence.
Step 3: Create a Jumper Wire
To enter the vehicle’s programming mode, you will need to “jump” two specific pins on the OBD port. You can do this with a short piece of wire or even a simple paperclip. You need to connect Pin 1 to Pin 4. Pin 1 is typically on the top left of the connector, and Pin 4 is on the same row, a few slots over. Before inserting the wire, double-check your vehicle’s manual or an online diagram to confirm the pin layout. Carefully insert one end of your jumper wire into the Pin 1 slot and the other end into the Pin 4 slot.
Step 4: Initiate the Programming Sequence
With the jumper wire securely in place, the vehicle is ready to enter programming mode. The next steps must be performed in a quick and precise sequence. Press your car’s hazard light button (the button with the red triangle) six times in a row.
When you do this correctly, you should hear the door locks cycle—locking and then immediately unlocking. This audible confirmation is your signal that the car has successfully entered programming mode and is now ready to learn the codes from your key fobs. If the locks do not cycle, remove the jumper wire and start the process over.
Step 5: Program the First Remote
Now that you are in programming mode, you must act quickly. Pick up the first key fob you want to program. Press and release the “Lock” button on the remote three times in quick succession. After the third press, the car’s door locks should cycle once again. This is the vehicle’s way of telling you that it has successfully received and stored the code from that specific remote. This first remote is now programmed. If the locks do not cycle, try pressing the “Lock” button more deliberately three times again.
Step 6: Program Additional Remotes
If you have more than one key fob to program, you need to do them immediately after the first one. You have a short window of time before the programming mode automatically exits. Pick up your second remote and repeat the exact same process: press the “Lock” button three times. You should again hear the door locks cycle to confirm that the second remote has been successfully programmed. You can repeat this process for up to four different key fobs. Remember to reprogram any existing fobs as well, as they were erased when you started.
Step 7: Exit Programming Mode and Test the Fobs
Once you have successfully programmed all of your remotes, you need to exit the programming mode. To do this, simply remove the jumper wire or paperclip that you inserted into the OBD port. After removing the wire, the programming sequence is complete. Now it is time to test your work.
Step out of the vehicle and close the door. Use each of the key fobs you just programmed to lock and unlock the doors. Also, test any other functions like the trunk release or panic button to ensure everything is working correctly.
Troubleshooting Key Fob Issues
If your key fob does not function as expected after programming, there are a few troubleshooting steps you can take. First, verify that the battery in the key fob is fresh and properly installed. A weak or dead battery is a common cause of malfunction. Next, double-check the programming process to ensure each step was followed correctly; even a small error could result in issues.
Additionally, confirm that the key fob is compatible with your vehicle’s make and model, as not all fobs are universally supported. If the fob is still unresponsive, inspect the OBD port and wiring to ensure the connection was made securely during programming. For persistent problems, consult your vehicle’s manual or seek assistance from a professional locksmith or dealership to diagnose the issue further.
Frequently Asked Questions (FAQs)
Can I Program a Mitsubishi Key Fob Myself?
Yes, for many Mitsubishi models, particularly those from the early 2000s to the mid-2010s, you can program the key fob yourself using the OBD port method described in this guide. However, newer models, especially those with push-button start and smart keys, often require specialized diagnostic equipment that only a dealership or an automotive locksmith possesses. Always check your specific model year for compatibility with DIY programming.
Do I Need to Reprogram My Old Fob if I Add a New One?
Yes. When you initiate the programming sequence, the vehicle’s computer erases all previously stored remote codes from its memory. Therefore, you must program all your fobs during the same session. This includes any old remotes that were already working perfectly. If you only program the new fob, your old ones will no longer function until you repeat the process with all of them together.
Why Is My Mitsubishi Not Entering Programming Mode?
If the door locks do not cycle after you press the hazard button six times, the car has not entered programming mode. The most common reasons for this are:
- The jumper wire is not making a good connection in Pins 1 and 4 of the OBD port.
- The sequence of pressing the hazard button was too slow or not completed correctly.
- Your specific vehicle model does not support this DIY programming method.
What Is the Difference Between a Key Fob and a Transponder Key?
A key fob contains the remote transmitter for locking and unlocking the doors. A transponder key has a small chip inside its plastic head that communicates with the vehicle’s immobilizer system, allowing the engine to start. While the remote functions (fob) can often be programmed via the OBD port method, programming the transponder chip almost always requires professional equipment.
Where Can I Buy a Replacement Mitsubishi Key Fob?
You can purchase replacement key fobs from a Mitsubishi dealership, but they are often much cheaper from online retailers or specialized automotive key suppliers. When buying a replacement, it is crucial to ensure that the FCC ID and part number on the back of the new fob match your original one exactly. An incorrect part number will not be compatible with your vehicle and cannot be programmed.
Conclusion
Programming a key fob for your Mitsubishi doesn’t have to involve an expensive and time-consuming visit to the dealership. For many models, the process is surprisingly simple and can be completed in your own driveway with just a small piece of wire.
By carefully following the sequence of jumping the OBD port, using the hazard button to enter programming mode, and registering each remote, you can restore full functionality to your vehicle’s keyless entry system. Now that you have a clear guide on how to program mitsubishi key fob, you can confidently handle this task yourself and enjoy the savings and satisfaction that come with it.