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How to Fix a Key Fob That isn't Working

If your key fob isn't functioning, a few easy steps can be taken to fix it. First, ensure that it's not the backup remote.

If your backup remote can unlock and lock the doors of your vehicle, it is likely that the main remote isn't functioning. The majority of car remote key malfunctions are caused by circuitry or battery issues.

Battery

The battery in the key repair shops near me (Full Post) fob may get worn out over the course of time. It is easy to replace batteries. However, it is important to select the right kind. You can check your owner's manual or call the manufacturer to determine the right kind. It's also a good idea to examine the battery compartment with care because dead batteries can release caustic chemicals that could cause damage to the remote car key repair. If changing the battery doesn't solve the issue, there may be other issues requiring professional attention. If buttons are broken or stuck for instance, it may be necessary take the remote apart and rework each component. It is also possible to reprogramme the vehicle to recognize the new remote.

Buttons

From repeated use, key fobs could wear out and become dirty. It is not unusual for buttons to cease functioning, or require a long press to make them work. This can be very frustrating, especially if you are away from home and you need to start your car. Fortunately, even worn-out or damaged buttons can be fixed with a bit of time and some of the materials you may already have around the house.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, open the remote with care and examine the circuit board. Check for signs of rust or other indications that the buttons have been worn or damaged. For instance, conductive paint may be missing. Use a Q-tip dipped in alcohol to gently clean any membrane contacts that are worn or have conductive paint missing. Avoid rubbing too hard as this can erode the conductive paint and stop the button from firing when it is it is pressed.

Also, carefully check the battery connector's terminals for an unattached solder connection. If this is the case, simply reconnecting them may restore function to the button. The same process can be used to restore functionality to any other loose connections inside the fob.

Finally, if any of the rubber buttons on the front of the key fob have stopped working or require a hard press to work it is likely the graphite disks that are on the back of the button are wearing down and need to be replaced. This is usually done by rubbing a pencil on the disks, which should bring the button back to life.

If none of these solutions work or you cannot get the button to respond when pressed hard, it could be that the circuitry has failed. This can sometimes be repaired by a quick clean and refitting, but it's recommended to have an additional fob available in the event this method fails for you.

Circuitry

The circuit board in your remote control could be dirty, regardless of whether the buttons on the key repair car fob are working or not. This problem can be resolved through a thorough examination. The most common causes of dirty circuit boards is water and damaged cases. A damaged case could let water and other debris to enter the circuit board, which can cause it to short out. Water can also eat through pins and vias, which are small connectors on the board.

If you're able to remove your key fob, and you're not afraid of making a mess, we can de-solder the buttons and solder new ones in their place. Also, you should check the connections between the battery terminals. If they are loose, the buttons could not function or get stuck in their down position. Soldering terminals and buttons back to their proper positions is usually enough to return a malfunctioning fob back to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than remote fobs that have them but they can still be broken by a hole being drilled into them or run over by a lawnmowers or door handle for a car remote key repair near me. The failure of the fuse is usually to blame for non-remote chip failures.

If you're not confident opening the key fob, take the circuit board off and use a multimeter to determine if the diode is working correctly. If you're not sure with this, visit your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob sends a signal.

Programming

Key fobs aren't impervious to destruction and are susceptible to damage by a variety of factors. They can lose their pairing with the receiver in your vehicle due to shocks or low-battery, which requires the reprogramming. A professional auto locksmith or the main dealer, can reprogram your key fob and get it back up and running again. If, in the unlikely event that resetting and fixing your key fob isn't working it could be the time to replace it entirely.