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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 the backup can lock and unlock your car key repair service doors, then there is likely an issue with the primary remote. The majority of car remote key malfunctions are caused by circuitry or battery issues.

Battery

It is not uncommon for the battery in a car key fob repairs key fob to wear out. It is simple to replace the battery. However it is essential that you use the correct kind. You can consult your owner's manual or call the manufacturer to find out the right kind. It is recommended to examine the battery compartment carefully since dead batteries may leak caustic chemicals that can cause damage to the remote. If replacing the batteries doesn't solve the issue it could be that there are other issues that require attention from a professional. For example, if buttons seem stuck or broken It may be necessary to disassemble the remote and rework its parts. You could also try reprogramming the vehicle key repairs to recognize the new key fob.

Buttons

Key fobs can get dirty and worn out from repeated use. This is not unusual however, it can cause buttons to stop working or require a hard press for them to function. This can be very frustrating especially if you're out of town and need to start your car. Even worn-out or malfunctioning buttons are often fixable with a bit of time and tools you already have at home.

First, make sure that the batteries have been correctly inserted and that the indentation at the back of the button is filled. Open the remote carefully and look over the circuit board. Look for evidence of rust, or other indications that the buttons have been worn or damaged. For instance there could be conductive paint missing. Utilizing a Q-tip dipped in alcohol, gently clean any membrane contacts that have damaged or where conductive paint is missing. Don't rub too hard in order to damage the conductive paint and prevent the button from firing when it is pressed.

Check the battery connector's terminals for loose solder connections. Soldering them back to their original position will restore the button's functionality if this is the situation. The same process can be used to restore functionality to any other loose connections in the fob.

If any of the rubber buttons on the front of the keyfob isn't working or need to be pressed very hard the graphite disks at the back of the button might have worn out and will need to replaced. You can do this by rubbing a pen across the disks. This should bring the button to life.

If all of this doesn't help or if the button still does not respond to a hard push, then it may be that the circuit board has gone bad. It is possible to fix this issue by cleaning and re-soldering the fob, but you should have an extra in case it does not work.

Circuitry

Whether or not the key fob buttons function the circuit board that is inside your remote might be dirty. A thorough inspection is often enough to resolve this problem. The most frequent causes of dirty circuit boards is water and broken cases. A broken case allows water and other debris to pass through and short out the electronics. Water can also damage pins and connectors on the board, which are known as via's.

If you're able to remove your key fob, and you're not afraid of a little mess, we can de-solder the buttons and solder new ones in their place. Also, it's worth checking the connections between the battery terminals. They can become extremely dirty and if they're loose 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 keys that are not in working order.

Non-Remote Transponder Chips

The sealed non-remote chips are more durable than remote fobs, but they are susceptible to breaking if a hole is drilled in them or when a door handle for a repair car key remote (jade-crack.com) or lawnmowers is pushed over them. Fuse failures are usually the cause of non-remote chip failures.

If you're not confident opening the key fob, you may remove the circuitboard and utilize a multimeter to check that the diode is working correctly. If you're not comfortable doing this, visit your local hardware store or the Oreilly's and they'll usually have a radio frequency tester that can tell you if the key fob is sending a signal.

Programming

Key fobs aren't indestructible and are susceptible to being damaged by a lot of things. They may lose their connection with the receiver inside your vehicle due to shocks or low battery, requiring the reprogramming. A professional auto key fob repair locksmith or a main dealer will be able to reprogram your key fob and get it working again. If, in the unlikely event that resetting and repairing your key fob doesn't work, it could be time to replace it completely.