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How to Fix a Key Fob That isn't Working

If your key fob does not work then you can fix it by following just a few steps. First, ensure that it's not the backup remote.

If your backup remote is unable to lock and unlock the doors of your vehicle, it is likely that the primary remote isn't functioning. The most common causes for key repair shop problems with your car remote are circuitry or battery issues.

Battery

The battery in the key fob could be worn out over time. It is fairly easy to replace a battery, although it is essential to make sure that you select the correct one; you can look in your owner's manual or contact the manufacturer's dealer to determine the type of battery you require. It is also essential to inspect the battery compartment as dead batteries can leak caustic chemicals that can harm the remote. If changing the battery doesn't fix the issue there may be additional issues that require professional attention. For instance, if the buttons seem to be stuck or damaged It may be necessary to disassemble the remote and rework its components. It is also possible to reprogramme the vehicle key repairs to recognize the new device.

Buttons

Through repeated use, key fobs could wear out and become dirty. It is not uncommon to have buttons stop working, or to require a long push to make them work. This can be extremely frustrating especially if you're away from home and you need to start your car. Fortunately, even worn-out or malfunctioning buttons can often be fixed with just a bit of time and some of the materials you might already have in the house.

First, make sure that the batteries are properly installed and that the indentation on the back of the button is filled. Then, carefully open up the remote and examine the circuit board. Check for evidence of rust, or other indications that the buttons are damaged or worn out. For example there could be conductive paint missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that is worn-out or where conductive paint is missing. Be careful not to rub too hard, since this could cause damage to the conductive painting and prevent the button from firing when the button is pressed.

Also, be sure to check the battery connector terminals for Mobile Key Repair a loose solder connection. If this is the case, soldering them back in place could restore function to the button. The same method can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons on the front of the keyfob are not functioning or require to be press very hard the graphite disks on the back of the button may have worn out and will need to replaced. This can be done by rubbing a pencil over the disks. This should bring the button back to its original state.

If none of this is useful, mobile Key repair or if the button does not respond to a firm press It could be the case that the circuit board has gone bad. It is possible to fix the issue by cleaning and re-soldering your fob, but you should have a spare in case it doesn't work.

Circuitry

The circuit board in your remote control could be dirty regardless of whether the buttons on the mobile key repair fob function or not. The issue can be solved through a thorough examination. Water and broken cases are the most common causes of boards that are dirty. A damaged case can allow water and other debris into the circuit board, causing it to short. Water can also damage pins and vias, which are tiny connectors that are found on the board.

If you are handy enough to open your key fob, and don't mind making a mess, we can remove the buttons from their sockets and solder in new ones. It's also worth looking at the battery terminal connections. They can become extremely filthy and if they're not tight enough, the buttons may not work or even stick in their down position. Soldering the terminals and button's back into place is typically all that's needed to return a non-working key fob to functioning condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than remote fobs that contain them but they can still be damaged by a hole that is made in them or pushed over by a lawnmowers blade or door handle for a car. Fuse failures are usually to blame for non-remote chips failures.

If you're able to remove the sealed key fob and are willing to put up with the mess, you can remove the circuit board and examine the fuse using an instrument to verify diode function. If you're not comfortable doing this, visit your local hardware store or the Oreilly's and they'll usually have an RF frequency tester that will determine if the key fob is sending a signal.

Programming

Key fobs are not indestructible and can be damaged by a variety of factors. They may lose their connection to the receiver in your car due to shock or a low battery, which requires the reprogramming. A professional auto locksmith or main dealer will be able to reprogram your key fob to get it working again. If resetting or replacing your key fob fails it may be necessary to replace it.