How to Repair a Remote Key
Even though most remote key fobs have impressive battery lifespan, they eventually degrade. Some times it is as simple as changing the batteries in the device but sometimes the issue could be more serious.
Remove the remote from the unit and clean the buttons. Then bend them in and out. These techniques might be all you need to get your key fob to work.
Battery
Car key remotes use CR2025 or CR2032 batteries, and they can often be replaced when the fob is functional. If not, you can inspect the battery terminals or buttons to see if there are any parts that are loose. You should be able to solder the buttons and terminals back into place. However, you will be required to know which type of battery is installed in the fob.
If you're unsure whether the battery is the issue then utilize a backup fob in order to start or unlock your car. If it's possible, it's time for a replacement of the primary fob. If it doesn't, you will require a professional to examine it to find the problem. It could be as simple as reset, or it could require other types of repairs. You might also discover that your car has lost the fob. This is not something you can tackle by yourself.
Case
The case of a remote key is the plastic case that surrounds it and typically comes with the button pad that is replaced. It is essential to choose a new case as the original case is likely to be pretty grungy and it is vital that the circuit board is installed properly in the case. The circuit board determines the function of the key fob. You can test it using an instrument 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. They could be loose or damaged in the course of time. A careful soldering process to put them back in their original position can usually restore them to full functionality unless they completely snap off.
Buttons
If your key fob buttons don't work anymore or are difficult to press for any reason, a motormite or dorman remote key housing replacement can be bought inexpensively online for your year/make and model. Then, take the circuit board out of the old case and into the new one. For certain models it may be necessary to adjust the board's position slightly. The black contact points of the buttons can be adhered to with aluminum foil and double-sided tape.
Programming
The key fob and receiver inside your car are linked however this connection could be corrupted. remote car key repairs will inspect your vehicle to determine its year, make, and model. They will then employ specialist equipment to recouple or program the transponder chip with a blank fob (or duplicate the key if that is possible). They will then test the remote to confirm that it functions.
It is crucial to be cautious when reprogramming a blank key, as the process can be a bit complicated and different brands require distinct steps. It is easy to skip a step or to wait too long before exiting the programming mode. To reduce the chance of damaging your car it is recommended to work with a professional who has vast knowledge of the security system of your vehicle. Certain key programming tools can also identify diagnostic trouble codes on your vehicle. This will help you repair or troubleshoot other issues.