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How to Repair a Remote Key

Although most remote key fobs have impressive battery life, they will eventually degrade. Sometimes it's as simple as changing the batteries in the device, however sometimes the problem can be more serious.

Take apart company website and clean the buttons. Then move them in and out. These methods could be all that you need to get your key fob back in working order.

Battery

If the fob continues to working it is possible to swap out the CR2025 or CR2032 battery. If not, you can open the fob and inspect the battery terminals and buttons for any signs of looseness or damaged parts. You should be able to solder the buttons and terminals back into their original positions. However, you'll be required to know which kind of battery is being used in your fob.

If you're not sure whether the battery is at fault, utilize a backup fob in order to unlock or start your vehicle. If you can do so, it's probably time to replace your primary fob. If not require replacement, you'll need to have a professional examine it to find the problem. It could be as simple as reconfiguration, or it may require other types of repairs. You might also discover that your vehicle has lost the fob. This is not something you can do on your own.





Case

The case of a remote key is the outer plastic housing and usually comes with the button pad replacement. It is essential to choose an entirely new case since the original will probably be quite dirty and it is crucial that the circuit board is placed correctly inside the case. The circuit board controls the key fob's function. You can test it using a multimeter set to RF (radiofrequency) mode, and a radio scanner that is tuned to the same frequency as the key fob.

Examine the contact points of the keys on the keypad. They could have become loose over time or have been damaged. Carefully soldering them back in place will often restore them to their original function unless they break completely.

Buttons

IF your key fob buttons do not function anymore or are difficult to press, a dorman or motormite key housing replacement for your remote can be purchased online for a reasonable price for the year/make/model you have. Then, you can take the circuit board from your old case and into the new one. For certain models it may be necessary to adjust the position of the board slightly. Then, you can use aluminum foil using double-sided tape to adhere it to the black contact points on the buttons.

Programming

The key fob and the receiver in your car are paired, but this connection can be corrupted. A professional will inspect your vehicle to determine its year, make and model. They will then employ specialist equipment to reconnect or program the transponder chip with a blank fob (or duplicate the key if possible). Then they test the remote to be sure it functions.

It is important to be cautious when programming a blank key, as the process can be complicated and different manufacturers require distinct steps. It is easy to miss a crucial step or to wait too long before exiting the programming mode. To minimize the risk of causing damage to your vehicle it is recommended to work with an expert who has extensive knowledge of the security system of your vehicle. Certain key programming tools are also capable of analyzing diagnostic trouble codes from your vehicle, which can aid in repairing or resolving other issues.