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How to repair car keys a Remote Key

While most remote key fobs come with excellent battery life, they'll eventually run out of battery. Some times it is as simple as changing the batteries inside the device, however sometimes the issue could be more serious.

An easy fix that could help is taking apart the remote key fob repair and investigation cleaning the buttons before flexing them in and out. These steps could be all you need to get your key fob working properly.

Battery

Car key remotes are powered by CR2025 or CR2032 batteries, and they can often be swapped out in the event that the device is operational. If it's not then you can remove the fob and check the battery terminals and buttons to look for signs of wear or broken key repair parts. The terminals and buttons can be re-soldered back into place but you'll need know exactly what type of battery is used by your fob.

If the battery isn't the problem you can try an alternative key fob to determine if you can unlock or start your vehicle using it. If you are able to do so, it's time to replace the primary fob. If it's not, you will require a professional examine it to find the issue. It could be as easy as reprogramming, or it could require other repairs. There's also the possibility that your car has forgotten your fob, which isn't something you can fix yourself.

Case Study

The case of a remote key is the plastic case that surrounds it and usually comes with the button pad that is replaced. It is important to use an entirely new case since the original case is likely to be pretty grungy, and it is essential that the circuit board is set properly in the case. The circuit board is responsible for the operation of the key fob and is tested using a normal multimeter by setting it to RF (radio frequency) mode and holding a scanner tuned to the same frequency that the key fob is using next to it, watching for pulsing signals when a pressing the button.

Another thing to examine is the contact points for buttons on the keypad. They may have become loose or broken over time. By carefully re-soldering them back into place will often restore them to full functionality unless they completely snap off.

Buttons

If your key fob buttons are no longer working or are difficult to push, you can buy an alternative dorman or Motormite remote key fob repairs housing online at the lowest cost for your model/year/make. Then pop the circuit board out of your old case into the new. For certain models, you may need to adjust the board's position slightly. Then, you can use aluminum foil with double sided tape to adhere to the black contact points on the buttons.

Programming

The key fob and receiver in your car are linked however this connection could be corrupted. A professional will assess your car to determine the year, make, and model. They'll then use specialist equipment to recouple or program a blank transponder chip or fob (or clone the key if that is possible). Then, they test the remote to make sure it functions.

When programming blank keys it is essential to take care. The process can be complex and each manufacturer has distinct instructions. It is easy to miss a crucial step or to take too long to exit the programming mode. To reduce the chance of damaging your vehicle, it is best to work with an expert who has vast knowledge of the security system in your vehicle. Some key programming tools can also identify diagnostic trouble codes in your vehicle. This will help you fix or resolve other issues.