How To Resolve Issues With Remote Key Repair
How to Fix a Key Fob That isn't Working
If your key fob does not work and you're not sure why, you can fix it with some simple steps. First, ensure that it's not the backup remote.
If the backup 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 problems with your car remote are battery or circuitry issues.
Battery
It is not uncommon to find a battery on a car key fob to wear out. It is easy to replace batteries. However click the up coming article is essential to select the right type. You can check your owner's guide or contact the manufacturer to find out the correct type. It is also important to inspect the battery compartment as batteries that are not working properly can release caustic chemicals which can damage the remote. If replacing the batteries doesn't solve the problem, it may be that there are other issues that require attention from a professional. For example, if buttons seem stuck or damaged, it may be necessary to disassemble the remote and rework its components. You can also try reprogramming your car to recognize the new key fob.
Buttons
Key fobs can become dirty and worn-out from repeated use. This is not uncommon, but it can cause buttons to cease functioning or require a difficult press to get them to work. This can be a huge hassle especially if you're away from home and need to start your car. Fortunately, even worn out or broken buttons can usually be fixed with a bit of time and a few materials you have in the house.
First, check that the batteries are correctly inserted and that the indentation on the back of the button has been filled. Then, carefully remove the remote and inspect the circuit board. Check for evidence of rust, or other indications that the buttons are worn or damaged. For example the paint that conducts electricity could be missing. Use a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that are damaged or where conductive paint is missing. Don't rub too hard, as this could erode the conductive paint, and block the button from firing when it is pressed.
Also, carefully check the battery connector terminals for a loose solder connection. Soldering them back into place will restore the button's functionality if this is the situation. 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 isn't working or need to be pressed extremely hard the graphite disks at 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, which will bring the button back to life.
If none of these solutions work or you are unable to get the button to respond when you press it hard, it could be that the circuitry is failing. It is possible to fix the issue by cleaning and re-soldering your fob however, you should have an extra in case it does not work.
Circuitry
If the key fob buttons function, the circuit board inside your remote might be dirty. This problem can be resolved by a thorough inspection. The most common causes of dirty circuit boards are water and broken cases. A broken case allows water and other debris to enter and short circuit the electronic components. Water can also eat away at pins and small connectors on the board called via's.
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 put in new ones. It's also worth checking the connections between the battery terminals. They can become extremely dirty and if they're loose, the buttons might not function or even stick in their down position. Soldering the terminals, and putting the button back in place is usually all that's needed to return keys that are not in working order.
Non-Remote Transponder Chips
The non-remote chips sealed in a sealed case are more durable than remote 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 plows over them. Failures of the fuse are typically to blame for non-remote chip failures.
If you're able to open the sealed key fob and are willing to put up with the mess, you can remove the circuit board and test the fuse with a multimeter for proper diode function. If you're not confident doing this, head to your local hardware store or Oreilly's and they will usually have an radio frequency tester that can let you know whether the key fob sending signals.
Programming
Key fobs are not indestructible and are susceptible to damage by a lot of things. They may lose their connection to the car's receiver due to shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith or a main dealer will be able to reprogram your key fob to get it working again. In the rarer case that resetting and fixing your key fob isn't working, it could be time to replace it entirely.