9 Things Your Parents Teach You About Remote Key Repair

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

If your key fob doesn't work, you can fix it with just a few steps. The first step is to be sure it's not the backup remote.

If your backup remote is unable to unlock and lock the doors of your car, then it is most likely that the primary remote isn't functioning. The most frequent causes of key malfunctions for car remotes are circuitry or battery issues.

Battery

The battery in a key fob repair service fob can wear out over time. It is fairly easy to change out the battery, however it is essential to ensure you choose the correct type and you can consult your owner's manual or contact the dealer of the manufacturer to find out what kind of battery you require. It is recommended to inspect the battery compartment with care because dead batteries can leak caustic chemicals that can harm the remote. If changing the battery doesn't fix the issue, there may be other issues that require professional attention. For instance, if buttons appear stuck or damaged, it may be necessary to take the remote apart and rework its parts. You can also try reprogramming your car to recognize the new key fob.

Buttons

Key fobs can get dirty and worn out from frequent use. This is not unusual however it can cause buttons to stop functioning or require a hard press for them to function. This can be very frustrating particularly when you're away from your home and you need to start your car. Fortunately, even worn out or damaged buttons can be fixed with just a bit of time and a few items you might already have in the house.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open up the remote and inspect the circuit board. Check for indications of rust or other signs the buttons are damaged or worn out. For instance, conductive paint may be missing. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that is worn out or where conductive paint is missing. Don't rub too hard, as this could erode the conductive paint and stop the button from firing when pressed.

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

If, for instance, any of the buttons made of rubber on the front of the key fob stop functioning or require a hard press to work, it is likely that the graphite disks on the back of the button are wearing down and need to be replaced. This can usually be done by rubbing a pencil across the disks. This should bring the button back to its original state.

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. It is possible to fix the issue by cleaning and re-soldering your fob but you should also have an extra in case it doesn't work.

Circuitry

If the keys fob buttons are functioning the circuit board in your remote might be dirty. This issue can be fixed by a thorough inspection. Broken cases and water are the most common causes of dirty boards. A damaged case allows water and other debris to get in and short out the electronic components. Water can also destroy pins and small connectors on the board, referred to as via's.

If you're skilled 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. It's also worth examining the battery terminal connections. If they are loose, the buttons may not function or get stuck in their down position. Soldering the terminals back into place is usually enough to restore a non-working fob to a working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than the remote key repair fobs that contain them but they can be broken by a hole being drilled into them or run over by a lawnmowers blade or remote Key Repair car door handle. Failures of the fuse are typically 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 working properly. If you're not comfortable doing this, head to your local hardware store or the Oreilly's and they'll usually have a RF frequency tester that will tell you whether the key fob transmitting a signal.

Programming

Key fobs are not indestructible and are susceptible to damage through a variety of causes. They may lose their connection with the receiver inside your vehicle due to shocks or low battery, which calls for the reprogramming. A professional auto locksmith or a main dealer can reprogram your key fob to get it functioning again. If, in the unlikely event that resetting and fixing your key fob doesn't work, it could be time to replace it completely.