How to Fix a Key Fob That isn't Working
If your key fob isn't functioning A few easy steps can fix it. First, make sure that it's not your backup remote.
If the backup can lock and unlock your car doors, then there's a likely issue with the main remote. Most problems with car remote keys result from battery or circuitry problems.
Battery
It is not unusual to find a battery on the key fob for cars to get worn out. click through the following web page is relatively easy to replace the battery, however it is crucial to make sure that you choose the correct type and you can consult your owner's manual or contact the dealer for the manufacturer to find out the kind of battery you require. It is also crucial to inspect the battery compartment as batteries that are not working properly can release toxic chemicals that could damage the remote. If replacing the battery does not fix the problem, there may be other issues that require professional attention. For instance, if the buttons appear stuck or broken it could be necessary to take the remote apart and rework its components. You could also try reprogramming your vehicle to recognize the new key fob.
Buttons
Key fobs can get dirty and worn-out from repeated use. It is not uncommon to have buttons stop working, or to require a hefty press to get them working. This can be extremely frustrating, especially if you are out of town and need to start your vehicle. Fortunately, even worn-out or broken buttons can usually be fixed with a little time and some of the materials you may already have around the home.
First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Open the remote carefully and examine the circuit board. Examine for indications of rust or other signs the buttons are worn or damaged. For instance, conductive paint may be missing. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that has become worn out or where conductive painting is missing. Avoid rubbing too hard as this can erode the conductive paint and block the button from firing when the button is pressed.
Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position can restore the button's functionality if this is the case. The same method can be used to restore function to any loose connections inside the fob.
If any of the rubber buttons on the front of the keyfob aren't working or require being pressed very hard the graphite disks on the back of the button might have worn out and require replacement. This is usually done by rubbing a pencil on the disks, which will bring the button back to working.
If none of these solutions work, or if you still cannot get the button to respond when you press it hard, it is possible that the circuitry is failing. This can be fixed by a quick clean and re-soldering, but it is best to have an extra fob available in the event this method fails for you.
Circuitry
Whether or not the key fob buttons are working the circuit board in the remote could be dirty. This issue can be fixed through a thorough examination. The most common causes of dirty circuit boards are water and broken cases. A damaged case could allow water and other debris to get into the circuit board, causing it to short out. Water can also eat through pins and vias, which are small connectors 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. It's also worth checking the battery terminal connections. They can become extremely dirty and if they're loose, the buttons might not work or even stay in their down position. Soldering the terminals back to their proper positions is usually enough to bring a non-working fob to working.
Non-Remote transponder chips
The sealed non-remote chips are more durable than their remote fobs, but they are susceptible to breaking if a hole is drilled in them or when a door handle for a car or lawnmowers plows over them. Most of the time, non-remote transponder chip failures can be attributed to blowing fuses.
If you're handy enough to open the sealed key fob and are willing to put up with the mess, you can take off the circuit board and examine the fuse with a multimeter for proper diode function. If you don't feel comfortable with this, you can visit your local Oreilly or hardware store and utilize their RF frequency tester. This will inform you whether the key fob sends an RF signal.
Programming
Key fobs are not indestructible and are susceptible to damage by a lot of things. They can lose their pairing with the receiver in your vehicle because of shocks or a low battery, which calls for changing the program. A professional auto locksmith, or main dealer can reprogram your keyfob to get it functioning again. If resetting or repairing the keyfob is not working it may be necessary to replace it.