How to Repair a Remote Key
Even though most remote key fobs boast impressive battery life, they will eventually get worn out. Some times it is as simple as replacing the batteries inside the device, but in other cases the issue could be more severe.
Take apart the remote and clean the buttons. Then, flex them in and out. These steps could be all you need to get your key fob working again.
Battery
Car key remotes are powered by CR2025 or CR2032 batteries and they can be replaced when the fob is functional. If remote key fob repair isn't, you can open the fob and examine the batteries' terminals and buttons for any indication of looseness or broken parts. You should be able to solder the buttons and terminals back into place. However, you'll be required to know which kind of battery is being used in your fob.
If you're not sure whether the battery is the problem you can use a backup fob to unlock or start your vehicle. 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 working properly. It could be as simple as reprogramming, or it could require other types repair. You may also find that your car has lost the fob. This is not something you can fix on your own.
Case Study
The case of remote keys is the plastic case that surrounds it and typically comes with a replacement button pad. It is recommended to purchase the latest case because the one you have will likely to be extremely dirty. It is vital that the circuit board inside the case is correctly placed. The circuit board controls the key fob's function. 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 contact points for buttons on the keypad. They might have become damaged or loose in the course of time. Soldering them back into place will often allow them to return to their original function, in the event that they snap completely.
Buttons
If your key fob buttons do not function anymore or are difficult to press you may need a dorman or motormite remote key housing replacement can be bought inexpensively online for the year, make and model of your. Then, you can take the circuit board out of the old case and into the new one. For certain models, you may need to adjust the position of the board slightly. Then, you can use aluminum foil with double sided tape to stick to the black contact points on the buttons.
Programming
The key fob and receiver in your car are linked, but this connection can be corrupted. A professional will inspect your car to determine its make, year, and model. They'll then use specialist equipment to recouple or program a blank transponder chip or fob (or copy the key if that is possible). Then they will test the remote to be sure it works.
When reprogramming blank keys it is essential to be careful. car key immobiliser repair can be complicated and each manufacturer offers slightly different instructions. It is easy to skip a step or to take too long to exit the programming mode. To avoid the risk of damaging your vehicle it is recommended to employ an expert who has extensive knowledge of the security system of your vehicle. Certain programming tools that are essential to use can also read diagnostic trouble codes in your vehicle. This can help you solve other issues.