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How to Repair a Remote Key

Although most remote key fobs have amazing battery life, they will eventually wear out. Sometimes it's as simple as changing the batteries, however sometimes there are more serious problems.

A quick fix that can aid is to disassemble the remote and cleaning the buttons before moving them in and out. These steps could be all you need to get your key fob working.

Battery





Car key remotes use CR2025 or CR2032 batteries, and they can often be replaced if the fob is still functioning. If not then you can remove the fob and examine the battery terminals and buttons for any indication of looseness or broken parts. Most of the time, the buttons and terminals can be soldered back in place, but you'll need to be aware of the kind of battery is used by your fob.

If you're unsure whether the battery is the issue, utilize a backup fob in order to start or unlock your vehicle. If it's possible, it's time to replace your primary fob. If it's not, a professional inspection is necessary to determine the reason it's not working properly. It could be a simple reconfiguration, or it may require other types of repairs. You may also find that your vehicle has lost the fob. This isn't something you can fix on your own.

Case Study

The case of remote keys is the plastic case that surrounds it and usually comes with the button pad that is replaced. It is important to use a new case as the original one is likely to be pretty grungy, and it is essential that the circuit board is set properly in the case. The circuit board is what is responsible for controlling the function of the key fob. key repairs near me can test it by using a multimeter set to RF (radiofrequency) mode and a scanner that is tuned to the same frequency as the key fob.

Examine the contact points of the keys on the keypad. They may have become loose over time or have been damaged. Soldering them back in place can often restore them to their original function, in the event that they break completely.

Buttons

If your key fob buttons aren't working or are difficult to push, you can purchase a replacement dorman or Motormite remote key housing online at the lowest cost for your model/year/make. Then, you can slide the circuit board out of your old case into the new one. On some models, you may need to adjust the board's position slightly. The black contact points of the buttons can be adhered to aluminum foil using double-sided tape.

Programming

The key fob is paired with the receiver inside your vehicle, and this connection can become corrupted. A professional will assess the car to determine the manufacturer, year of the vehicle, year of manufacture and model. They use specialist equipment to re-pair or program an empty fob or transponder chip (or clone a key should this be possible). They will then test the remote to ensure that it works.

It is important to be cautious when reprogramming the blank key, because the process can be complicated and different manufacturers require slightly different steps. It is easy to miss a key step or to take too long before exiting the programming mode. To minimize the risk of damaging your vehicle, it is best to work with a professional who has extensive knowledge of the security system in your vehicle. Some key programming tools can also identify diagnostic trouble codes on your vehicle. This can assist you to fix or resolve other issues.