How to Repair a Remote Key
Although many remote key fobs boast impressive battery life, they will eventually wear out. Sometimes it's as easy as changing the batteries, but sometimes there are more serious problems.
One quick fix that may help is dismantling the remote by cleaning the buttons and flexing them in and out. These steps could be all you need to get the key fob to work.
Battery
Car key remotes utilize CR2025 or CR2032 batteries and they can be replaced when the fob is operational. If not, you can inspect the battery terminals or buttons to see if there are any parts that are loose. Often the terminals and buttons can be soldered back in place, but you'll need to know exactly what type of battery your fob uses.
If you're unsure whether the battery is the issue you can utilize a backup fob in order to unlock or start your car. If remote key repair can, it's probably time to replace the primary fob. If not then you'll require a professional to examine it to find the problem. It could be as simple as reconfiguration, or it may require other types of repair. There's also the possibility that your car has forgotten your fob that you can fix yourself.
Case
The outer plastic housing of a remote is called the case. It is usually equipped with an additional button pad. It is best to use an entirely new case as the original is likely to be very filthy. It is crucial that the circuit board in the case is properly positioned. The circuit board is responsible for the function of the key fob. It can be tested with a standard multimeter by setting it to the RF (radio frequency) mode and holding a scanner tuned to the same frequency the key fob is using next to it, listening for pulsing signals when a pressing the button.
Check the contact points of the buttons on the keypad. They could be loose over time, or even broken. Carefully soldering them back in place will often restore them to full functionality unless they break completely.
Buttons
If the buttons on your key fob aren't working or are difficult to press, you can buy a new dorman or motormite remote key housing online at the lowest cost for the model/year/make. Then pop car key fob repairs out of your old case into the new. On some models it may be necessary to move the board slightly. remote key repair can then apply aluminum foil using double-sided tape to adhere it to the black contact points on the buttons.
Programming
The key fob is linked with the receiver of your vehicle and this connection can be corrupted. A professional will examine your vehicle to determine its year, make and model. They will then employ specialist equipment to reconnect or program the transponder chip with a blank fob (or clone the key, if possible). They will then test the remote to make sure that it functions.
It is crucial to be cautious when programming an unprogrammed key, since the process is often 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, so it is recommended to work with a professional with comprehensive knowledge of your car's security system to reduce the chance of harming the car. Certain key programming tools also have the capability of reading diagnostic trouble codes from your vehicle, which could help repair or troubleshoot other issues.