How to Repair a Remote Key
Although most remote key fobs come with amazing battery life, they do eventually wear out. Sometimes it's simple to replace the batteries in the device but sometimes the problem can be more serious.
Take the remote apart and clean the buttons. Then, flex them in and out. These methods could be all you need to get the key fob working.
Battery
Car key remotes use CR2025 or CR2032 batteries and they can be replaced if the fob is still operational. If not, you can inspect the battery terminals or buttons to determine if there are any parts that are loose. Most of the time, the buttons and terminals can be re-soldered back into place, but you'll need to be aware of the exact kind of battery is used by your fob.
If you're unsure if the battery is the problem then use a backup fob to start or unlock your car. If you can, then 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 reconfiguration, or it may require other types repair. It could also be that your vehicle has forgotten the fob. This is not something you can fix on your own.
Case Study
The case of remote keys is the outer plastic housing and typically comes with a button pad replacement. It is best to use an entirely new case since the original one case is likely to be quite filthy. Additionally, it is essential that the circuit board inside the case is correctly placed. The circuit board is responsible for the function of the key fob. It is tested using a normal multimeter by setting it to RF (radio frequency) mode and then holding a radio scanner tuned to the frequency the key fob uses next to it, watching for pulsing signals when a pressing the button.
Examine the contact points of the buttons on the keypad. They may have become loose over time or have been damaged. A careful soldering process to put them back in place can often return the functionality of the keypad unless they completely snap off.
Buttons
If the buttons on your key fob aren't working anymore or are difficult to push, you can buy an alternative dorman or Motormite remote key housing online at a low cost for your model/year/make. Then, take the circuit board out of your old case and into the new one. key fob repair may need to adjust the position of your circuit board on certain models. The black contact points of the buttons can be adhered to with aluminum foil and double-sided tape.
Programming
The key fob is linked with the receiver inside your vehicle and this connection could be damaged. A professional will assess the vehicle to determine the make of the vehicle, year of manufacture and model. They make use of specialist equipment to repair or program an empty fob or transponder chip (or clone a key should this be possible). They will then test the remote to confirm that it works.
When reprogramming blank keys, it is important to be careful. The process is complicated and each manufacturer offers slightly different instructions. It is easy to miss a crucial step or to take too long to exit the programming mode. To minimize the risk of damaging your car, it is best to work with a professional who has extensive knowledge of the security system of your vehicle. Certain key programming tools can also identify diagnostic trouble codes in your vehicle. repair car key can help you solve other issues.