How to Repair a Remote Key
Even though most remote key fobs come with amazing battery life, they do eventually get worn out. Some times it is as simple as replacing the batteries in the device but sometimes the issue can be more serious.
An easy fix that could help is taking apart the remote by cleaning the buttons and moving them in and out. These steps could be all that you need to get your key fob working again.
Battery
Car key remotes are powered by CR2025 or CR2032 batteries and can usually be replaced when the fob is functional. If it's not accessible, you can take it off the fob and inspect the battery terminals and buttons to look for signs of wear or broken parts. You should be able to connect the terminals and buttons back in place. However, you'll need to know what kind of battery is being used in your fob.
If you're unsure whether the battery is the issue, make use of a backup fob to start or unlock your vehicle. If it's possible do so, it's probably time to replace the primary fob. If not, a professional inspection is needed to figure out why it's not working correctly. It could be as easy as reprogramming it, or require other repairs. It could also be that your vehicle has forgotten the fob. This isn't something you can tackle on your own.
Case
The case of remote keys is the plastic case that surrounds it and typically comes with a button pad that is replaced. It is essential to choose a new case, as the original one is likely to be a bit shabby and it is vital that the circuit board is installed correctly inside the case. The circuit board controls the key fob's function. You can test it with a multimeter set to RF (radiofrequency) mode, and a radio scanner that is tuned to the same frequency as the key fob.
how to repair car key fob to check is the button contact points on the keypad, which might be loose or damaged in the course of time. Soldering them back in place can often restore them to their original functionality, in the event that they snap completely.
Buttons
If your key fob buttons are no longer working or are difficult to push, you can buy an alternative dorman or Motormite remote key housing online for an affordable cost for the model/year/make. Then, you can take the circuit board out of the old case and insert it into the new one. You may have to slightly alter the position of the circuit board for certain models. The black contact points of 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 may be corrupted. A professional will assess your car to determine the year, make, and model. key repair car 'll then use specialist equipment to recouple or program the transponder chip with a blank fob (or copy the key, if possible). They will then test the remote to ensure that it functions.
It is important to be careful when reprogramming an unprogrammed key, since the process is often complicated and different brands require certain steps that are slightly different. It is also possible to miss a step, or delay too long before leaving the programming mode, therefore it is best to use professionals with extensive knowledge of the security system of your vehicle to minimize the risk of damaging your car. Certain key programming tools can also identify diagnostic trouble codes on your vehicle. This can help you repair or troubleshoot other issues.