How to Repair a Remote Key
Although most remote key fobs are equipped with impressive battery lives they'll eventually get worn out. Sometimes it's as easy as changing the batteries, however sometimes there are more serious issues.
Take the remote apart and clean the buttons. Then bend them in and out. These methods could be all you need to get your key fob to work.
Battery
If the fob is functioning you can replace the CR2025 or CR2032 battery. If not, examine the battery terminals or buttons to see if there are any parts that are loose. The terminals and buttons can be re-soldered back into place but you'll need be aware of the type of battery is used by your fob.
If the battery isn't the problem Try using an alternate key fob to determine whether you can unlock or start your vehicle using it. If car key fob repairs , it's time to replace your primary fob. If it doesn't require replacement, you'll require a professional to assess the fob to identify the issue. It could be as simple as reprogramming, or it could require other types of repair. You might also discover that your car has lost the fob. This isn't something you can fix on your own.
Case
The case of remote keys is the plastic case that surrounds it and typically comes with a button pad replacement. It is crucial to get a new case, as the original one is likely to be quite dirty and it is crucial that the circuit board is installed correctly in the case. The circuit board is what determines the function of the key fob. You can test it with an instrument set to RF (radiofrequency) mode and a scanner that is tuned to the same frequency as the key fob.
Another thing to check is the contact points for buttons on the keypad. They could have become damaged or loose in the course of time. By carefully re-soldering them back into place will often restore the functionality of the keypad unless they break completely.
Buttons
IF your key fob buttons don't work anymore or are difficult to press for any reason, a motormite or dorman key housing replacement for your remote can be purchased online for a reasonable price for the year, make and model of your. Then, simply pop the circuit board from your old case into the new one. You may need to adjust the position of the circuit board on certain models. You can then use aluminum foil and double-sided tape to adhere it to the black contact points on the buttons.
Programming
The key fob is connected with the receiver in your vehicle, and this connection can be corrupted. A professional will examine the vehicle to determine the make 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 clone a key in the event that it is possible). Then they test the remote to make sure it works.
It is essential to be careful when reprogramming the blank key, because the process can be complicated and different brands require slightly different steps. It is also possible to miss a step, or delay too long before leaving the programming mode, therefore it is recommended to work with professionals with extensive knowledge of the security system of your vehicle to reduce the chance of damaging your car. Some key programming tools are also capable of reading diagnostic trouble codes from your vehicle. This can help repair or troubleshoot additional problems.