How to Repair a Remote Key
Although most remote key fobs have amazing battery life, they will eventually degrade. Sometimes it's as easy as changing the batteries, but sometimes there are more serious issues.
Remove the remote from the unit and clean the buttons. Then move them out and in. These techniques might be all you need to get your key fob working.
Battery
Car key remotes utilize CR2025 or CR2032 batteries and can usually be swapped out when the fob is functioning. If not, examine the battery terminals or buttons to see if there are any missing parts. You can usually solder the buttons and terminals back into their original positions. However, you'll need to know what type of battery is used in the fob.
If you're not sure if the battery is the problem you can make use of a backup fob to unlock or start your vehicle. If it's possible, it's probably time to replace the primary fob. If not, a professional inspection is required to determine why it's not working correctly. It could be as easy as reprogramming, or it could require different types of repairs. You might also discover that your vehicle has lost the fob. key repair car isn't something you can do on your own.
Case Study
The outer plastic enclosure of a remote is referred to as the case. It is usually equipped with an alternative button pad. It is recommended to purchase the latest case as the original is likely to be very dirty. Also, it is crucial that the circuit board within the case is placed correctly. The circuit board is responsible for controlling the function of the key fob. You can test it by using a multimeter set to RF (radiofrequency) mode and a radio scanner that is tuned to the same frequency as the key fob.
Another thing to examine is the button contact points on the keypad, which might have become damaged or loose over time. Soldering them back into place will often allow them to return to full function, unless they break completely.
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 bought inexpensively online for the year/make/model you have. Then, how to repair car key fob can take the circuit board out of your old case and insert it into the new one. You may have to slightly adjust the position of your circuit board for certain models. You can then use aluminum foil with double sided tape to adhere to the black contact points on the buttons.
Programming
The key fob is connected with the receiver of your vehicle and this connection could be damaged. A professional will examine the car to determine the manufacturer, year of the vehicle, year of manufacture and model. They make use of specialist equipment to repair or program a blank fob or transponder chip (or duplicate a key if this is possible). Then they test the remote to be sure it works.
It is crucial to be careful when reprogramming an unprogrammed key, since the process is often complicated and different manufacturers require slightly different steps. It is easy to miss a crucial step or to wait too long to exit the programming mode. To avoid the risk of damaging your car it is recommended to employ an expert with vast knowledge of the security system in your vehicle. Certain key programming tools also have the capability of reading diagnostic trouble codes from your vehicle, which can help repair or troubleshoot other issues.