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How to Fix a Key Fob That isn't Working

If your key fob isn't working, a few easy steps can be taken to fix it. The first step is to make sure that it's not your backup remote.

If your backup remote cannot lock and key repair near me and unlock the doors of your car, then it is likely that the main remote key fob repair near me (this site) isn't functioning. The majority of mobile car key repair remote key malfunctions result from circuitry or battery issues.

Battery

The battery in the key fob may be worn out over time. It is relatively easy to replace batteries, but it is important to make sure that you select the correct one that you can refer to your owner's manual or contact the manufacturer's dealer to find out what kind of battery you need. It is also a good idea to examine the battery compartment with care since dead batteries may release caustic chemicals that could damage the remote. If changing the batteries does not solve the problem it could be because there are other issues that require attention from a professional. For example, if buttons appear stuck or damaged It may be necessary to disassemble the remote and rebuild its components. It is also possible to reprogramme the vehicle to recognize the new fob.

Buttons

Through repeated use, key fobs can get dirty and worn. This is not atypical however it can cause buttons to stop working or require a long press to function. This can be a huge hassle especially if you're away from home and need to start your car key and repair. Fortunately, even worn-out or malfunctioning buttons can often be fixed with just a bit of time and a few materials you have in the house.

First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, open the remote with care and inspect the circuit board. Examine for evidence of rust, or other indications that the buttons have been worn or damaged. For example, conductive paint may be missing. Use a Q-tip that has been dipped in rubbing alcohol to gently clean any membrane contact that has become worn out or where conductive paint is missing. Do not rub too vigorously in order to damage the conductive paint and prevent the button from firing when you press it.

Check the battery connector terminals carefully for any loose solder connections. If this is the case, connecting them back could restore functionality to the button. The same method can be used to restore function to any other loose connections in the fob.

If any of the rubber buttons on the front of the keyfob aren't working or require being pressing extremely hard, the graphite disks at the back of the button may have worn out and need to replaced. You can usually do this by rubbing a pencil over the disks. This should bring the button to life.

If none of these solutions work or you are unable to get the button to respond when pressed hard, it is possible that the circuitry has failed. It is possible to fix the issue by cleaning and re-soldering your fob, but you should have another spare in case it does not work.

Circuitry

The circuit board in your remote control could be dirty regardless of whether the buttons on the key fob are working or not. A thorough inspection will usually resolve this problem. Broken and damaged cases are the most common causes of boards that are dirty. A damaged case could let water and other debris to enter the circuit board, which can cause it to short. Water can also damage pins and vias, which are small connectors found on the board.

If you're skilled enough to open your key repairs near me fob and don't mind making an mess, you can take the buttons out of their sockets and put in new ones. It's also worth examining the battery terminal connections. They can get very dirty and if they're loose the buttons might not function or may even remain in their down position. Soldering the terminals and button's back in place is usually all it takes to restore the key fob that is not working to working condition.

Non-Remote Transponder Chips

The non-remote chips that are sealed are more durable than remote fobs, but they are susceptible to cracking if a hole is drilled in them, or if a car door key repair near me handle or lawnmower runs over them. Most of the time non-remote transponder chip malfunctions can be blamed on blowing fuses.

If you're not comfortable opening the key fob, you can remove the circuitboard and use a multimeter to determine if the diode is operating correctly. If you're unsure about doing this, head to your local hardware store or Oreilly's and they'll usually have a RFID frequency tester that can tell you if the key fob is sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a variety of factors. They can lose their pairing to the car's receiver because of shock or a low battery, requiring the reprogramming. A professional auto locksmith or main dealer will be able to reprogram your key fob and get it functioning again. If, in the unlikely event that resetting or repairing your key fob doesn't work it could be the time to replace it all over again.