Is your standard Mitsubishi key feeling outdated or bulky? Many Mitsubishi owners, especially those with models from the 4G Eclipse era and similar years, are looking for a more modern and convenient key solution. Upgrading to a flip key fob is a popular and achievable DIY project. This guide will walk you through the process of converting your existing Mitsubishi key into a stylish and functional flip key fob.
Understanding the Components: Transponder and Remote Fob
Before you start, it’s important to understand the two key components within your Mitsubishi key:
- Transponder Chip: This is a small black chip, usually housed in a white holder inside your key. It’s crucial for starting your car as it communicates with your car’s Engine Control Unit (ECU).
- Remote Fob (Optional): Some keys include a separate remote fob for locking, unlocking doors, and opening the trunk. This fob communicates with the car’s Body Control Unit (BCU).
Step-by-Step Mitsubishi Key Fob Conversion to Flip Key
This conversion involves a few key steps, combining parts from your original key and readily available aftermarket flip key fobs.
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Disassembling Your Original Mitsubishi Key: Carefully open your existing key. You’ll typically find a seam running along the inside of the key. Use a razor blade or similar tool to gently cut along this seam to open the key casing. Inside, locate the transponder chip. Handle this chip with care as it’s essential for your car to start.
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Preparing the Aftermarket Flip Key Fob: Purchase a compatible aftermarket flip key fob designed for Mitsubishi vehicles. These are widely available online. These flip key fobs usually have a cavity designed to house a transponder chip and space for a remote fob.
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Transferring the Transponder Chip: Remove the transponder chip from your original key and carefully insert it into the designated cavity within the new flip key fob. This cavity is often located near the flip mechanism button. This step ensures your new flip key can start your car.
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Key Blade Cutting: Have the key blade for your flip key cut to match your original key blade. This can be done at most locksmiths or key cutting services. It’s highly recommended to get the flip key blade cut before you disassemble your original working key. If you happen to disassemble your key first, remember that you only need a cut key blade and the transponder chip near the ignition switch to start the car in an emergency.
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Adding Remote Functionality (Optional): If you want remote lock/unlock and trunk functions, you’ll need a used Mitsubishi key with an intact remote fob. Search online marketplaces for a used, “cut” Mitsubishi key that includes the fob. Dismantle the used key and carefully remove the fob circuit board from its diamond-shaped housing. Install this fob circuit board into the designated space within your flip key fob.
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Programming the Remote Fob (Optional): The used remote fob will likely need to be programmed to your car’s BCU. Fortunately, many Mitsubishi models allow for DIY remote programming using a paper clip and the OBDII port. Search online forums and resources specific to your Mitsubishi model for detailed instructions on remote programming.
Important Considerations and Tips
- Key Blade First: Always prioritize getting the flip key blade cut before disassembling your original key to avoid being stranded.
- Transponder is Key: The transponder chip is crucial for starting your car. Handle it with care during the transfer process.
- Used Keys for Remote Functionality: Using a used key fob is a cost-effective way to add remote features to your flip key.
- DIY Programming: Programming the remote fob yourself can save money, but ensure you follow instructions carefully for your specific Mitsubishi model.
Conclusion
Upgrading your Mitsubishi key fob to a flip key is a worthwhile DIY project that enhances both the style and convenience of your car key. By carefully following these steps and utilizing readily available aftermarket parts and used key fobs, you can achieve a modern key solution for your Mitsubishi vehicle. Enjoy the satisfaction of a successful DIY upgrade and the sleek feel of your new Mitsubishi flip key fob!
