how to repair broken car key to Fix a key fob repairs Fob That isn't Working

If your key fob isn't working A few easy steps can be taken to fix it. First, make sure that it's not your backup remote.

If the backup remote is able to lock and unlock your car doors then there's a likely issue with the primary remote. The most common causes for key malfunctions for car remotes are circuitry or battery issues.

Battery

The battery in the key fob could be worn out over time. It is easy to replace a battery. However it is crucial that you choose the right kind. You can consult your owner's guide or contact the manufacturer to inquire about the right type. It is also a good idea to inspect the battery compartment carefully since dead batteries may leak caustic chemicals that can cause damage to the remote. If replacing the battery does not fix the issue there may be additional issues that require attention from a professional. For instance, if buttons seem stuck or damaged, it may be necessary to take the remote apart and rework its parts. You can also try reprogramming the vehicle to recognize the new remote.

Buttons

Key fobs can become dirty and worn out from frequent use. It is not uncommon for buttons to cease working, or to require a long press to make them work. This can be very frustrating especially if you're away from home and you need to start your vehicle. Fortunately, even worn-out or malfunctioning buttons can often be fixed with a bit of time and a few materials you might already have in the house.

First, ensure that the batteries are properly charged and that the indentation on the back of the button is filled. Open the remote carefully and examine the circuit board. Check for signs of corrosion or other signs that the buttons are worn or damaged, such as missing paint that is conductive. Utilizing the Q-tip, dipped in alcohol to gently clean any membrane contacts that are damaged or have conductive paint missing. Do not rub too vigorously as this can damage the conductive paint and stop the button from firing when it is pressed.

Also, be sure to check the battery connector terminals for a loose solder connection. If this is the case, simply connecting them back can restore functionality to the button. The same procedure can be used to restore function to any loose connections inside the fob.

If any of the rubber buttons located at the front of the keyfob are not functioning or require to be press extremely hard the graphite disks on the back of the button may have worn out and will require replacement. This can be done by rubbing a pencil on the disks, which will bring the button back to working.

If all of this doesn't help, or if the button doesn't respond to a hard press It could be the case that the circuit board is damaged. It is possible to fix this issue by cleaning and re-soldering the fob but you should also have another spare in case it does not work.

Circuitry

If the key fob buttons are working the circuit board that is inside the remote could be dirty. This issue can be fixed through a thorough examination. Broken cases and water are the most frequent causes of dirty boards. A damaged case can allow water and other debris to get into the circuit board, which can cause it to short out. Water can also get through pins and vias, which are the tiny connectors that are found on the board.

If you are handy enough to open your key fob and aren't afraid of making a mess, we can take the buttons out of their sockets and then solder new ones. Also, you should check the connections between battery terminals. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals back to their proper positions is usually enough to return a malfunctioning fob back to working.

Non-Remote Transponder Chips

The sealed non-remote chips are more durable than their remote key repair car key (great post to read) fobs, however they are susceptible to breaking in the event of a hole being drilled into them or when a door handle for a car or lawnmowers is pushed over them. The failure of the fuse is usually to blame for non-remote chip failures.

If you are not comfortable opening the key fob, remove the circuitboard and use a multimeter to verify that the diode is functioning correctly. If you don't feel comfortable with this, you can go to your local Oreilly or hardware store and use their RF frequency tester. This will let you know whether the key fob transmits a signal.

Programming

Key fobs aren't indestructible and are susceptible to damage by a variety of factors. They may lose their connection with the receiver in your vehicle due to shocks or a low battery, requiring changing the program. A professional auto locksmith or main dealer can reprogram the keyfob to get it functioning again. If resetting or repairing your keyfob does not work it is possible to replace it.