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How to Repair a Remote Key Even though most remote key fobs boast impressive battery life, they will eventually wear out. Sometimes it's simple to replace the batteries in the device, however sometimes the problem can be more serious. Take apart the remote and clean the buttons. Then, flex them in and out. These techniques might be all you need to get the key fob working. Battery Car key remotes are powered by CR2025 or CR2032 batteries and can usually be replaced when the fob is functional. If not accessible, you can take it off the fob and check the battery terminals and buttons to look for signs of wear or damaged parts. Often the terminals and buttons can be re-soldered back into place but you'll need be aware of the exact kind of battery is used by your fob. If you're not sure if the battery is at fault you can use a backup fob to start or unlock your vehicle. If you are able to do so, it's time to replace the primary fob. If not, a professional check is needed to figure out why it's not working correctly. It could be as simple as reset, or it could require other types of repairs. There's also the possibility that your vehicle has lost your fob that you can fix on your own. Case The plastic housing that covers the outside of a remote is called the case. It is usually equipped with a replacement button pad. It is important to use a new case, as the original one is likely to be pretty grungy, and it is essential that the circuit board is placed properly in the case. The circuit board controls the key fob's function. You can test it using an instrument set to RF (radiofrequency) mode, and a radio scanner that is tuned to the same frequency as the key fob. Check the contact points of the buttons on the keypad. They could be loose over time or have been damaged. Carefully soldering them back in their original position can usually restore them to their original function unless they completely snap off. Buttons If your key fob buttons no longer work or are difficult to press you may need a dorman or motormite key housing replacement for your remote can be purchased online for a reasonable price for your year/make and model. Then, simply pop the circuit board from your old case into the new. For certain models you may have to move the board slightly. key repair near me can then use aluminum foil and double-sided tape to adhere to the black contact points on the buttons. Programming The key fob and the receiver in your car are linked, but this connection can be ruined. A professional will examine the car to determine the make of the vehicle, year of manufacture and model. key repair near me use specialist equipment to re-pair or program the fob with a blank transponder chip (or duplicate a key if this is possible). They will then test the remote to confirm that it functions. It is essential to be careful when reprogramming the blank key, because the process can be a bit complicated and different brands require distinct steps. It is easy to miss a key step or wait too long before exiting the programming mode. To avoid the risk of damaging your vehicle it is recommended to employ a professional who has vast knowledge of the security system of your vehicle. Certain programming tools also have the capability of analyzing diagnostic trouble codes from your vehicle, which can aid in repairing or resolving further problems.