How to Repair a Remote Key
Although many remote key fobs boast amazing battery life, they will eventually degrade. Sometimes it's as simple as changing the batteries in the device, but in other cases the issue can be more serious.
An easy fix that could aid is to disassemble the remote by cleaning the buttons and moving them in and out. These techniques may be all that you require to get your key fob working properly.
Battery
If the fob continues to working it is possible to swap out the CR2025 or CR2032 battery. If not, you can open the fob and inspect the buttons and battery terminals to look for signs of wear or broken parts. The terminals and buttons can be re-soldered back into place however you'll need know exactly what kind of battery your fob uses.
If the battery isn't the problem Try using an alternate key fob and see if you can start or unlock your vehicle with it. If you can then it's time to replace the primary fob. If not, a professional check is needed to figure out why it's not working correctly. It could be as easy as reprogramming or it may require other types of repair. There's also the possibility that your vehicle has forgotten your fob and isn't something you can fix yourself.
Case Study
The outer plastic housing of a remote is referred to as the case. It typically comes with an alternative button pad. It is essential to choose a new case as the original one is likely to be a bit shabby and it is crucial that the circuit board is set properly in the case. The circuit board is responsible for the function of the key fob and can be tested with a normal multimeter by setting it to the RF (radio frequency) mode and then holding a radio scanner tuned to the same frequency the key fob operates on next to it, listening for signals that pulsate upon pressing the button.
Examine the contact points of the buttons on the keypad. They may be loose over time, or even broken. Carefully soldering them back in their original position can usually restore them to their original function unless they completely snap off.
Buttons
IF your key fob buttons do not function anymore or are difficult to press, a dorman or motormite remote key housing replacement can be purchased online for a reasonable price for your year/make and model. Then, take the circuit board from your old case and into the new one. You may have to slightly adjust 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 the receiver in your car are paired however, this connection may be corrupted. A professional will examine the vehicle to determine the make, year and model and use specialist equipment to re-pair or program an empty fob or transponder chip (or clone a key if this is possible). car keys repairs near me will then test the remote to confirm that it functions.
When programming blank keys it is essential to take care. The process is complicated and each manufacturer comes with slightly different instructions. It is easy to miss a key step or wait too long before exiting the programming mode. To avoid the risk of damaging your vehicle it is recommended to hire an expert with vast knowledge of the security system of your vehicle. Certain key programming tools also have the capability of analyzing diagnostic trouble codes from your vehicle. This can assist in fixing or resolving any additional issues.