How to Repair a Remote Key
Although most remote key fobs come with an impressive battery lifespan, they eventually wear out. Sometimes it's as simple as replacing the batteries, but occasionally there are more serious issues.
One quick fix that may aid is to disassemble the remote, cleaning the buttons and moving them in and out. repair car keys could be all you need to get your key fob working.
Battery
If the fob continues to functioning you can replace the CR2025 or CR2032 battery. If not, you can open the fob and inspect the batteries' terminals and buttons to look for signs of wear or damaged parts. Most of the time, the buttons and terminals can be re-soldered back into place, but you'll need to be aware of the kind of battery the fob is using.
If the battery isn't the problem you can try a backup key fob and see whether you can unlock or start your vehicle using it. If you can, then it's time to replace your primary fob. If not, a professional inspection is necessary to determine the reason it's not functioning properly. It could be a simple reset, or it could require other types of repair. You might also discover that your vehicle has forgotten the fob. This isn't something you can fix by yourself.
Case Study
The plastic housing that covers the outside of a remote is referred to as the case. It usually comes with an additional button pad. It is best to use the latest case as the original will likely to be extremely filthy. It is essential that the circuit board in the case is correctly placed. The circuit board is responsible for the function of the key fob and can be tested with a standard multimeter by setting it to RF (radio frequency) mode and holding a radio scanner tuned to the frequency the key fob uses close to it, and listening for signals that pulsate upon button presses.
Check the contact points on the keys on the keypad. They could have become loose over time or broken. Soldering them back into place can often restore them to their original function, unless they snap completely.
Buttons
IF your key fob buttons no longer work or are difficult to press, a dorman or motormite remote key housing replacement can be purchased online for a reasonable price for the year/make/model you have. Then, you can slide the circuit board from your old case into the new. For certain models it may be necessary to move the board slightly. Then, you can use aluminum foil with double sided tape to adhere it to the black contact points on the buttons.
Programming
The key fob and receiver inside your car are linked however this connection could be corrupted. A professional will assess 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 clone the key, if possible). Then, they test the remote to be sure it works.
When reprogramming blank keys it is essential to take care. The process can be complicated and each manufacturer offers distinct instructions. keys repair is also easy to miss a step, or delay too long before leaving the programming mode, which is why it is recommended to hire an expert with a thorough understanding of your car's security system to reduce the chance of harming the car. Some key programming tools can also identify diagnostic trouble codes on your vehicle. This can help you solve other issues.