The Ultimate Guide To Remote Key Repair
How to Fix a Key Fob That isn't Working
If your key fob doesn't work and you're not sure why, you can fix it with a few simple steps. The first step is to make sure that it's not the backup remote.
If your backup remote is unable to lock and unlock the doors of your car, it is likely that the primary remote isn't working. The majority of car remote key malfunctions are caused by circuitry or battery issues.
Battery
The battery inside a key fob can wear out over time. It is quite simple to replace batteries, but it is important to ensure that you choose the correct type that you can refer to your owner's manual or contact the dealer for the manufacturer to find out what kind of battery you require. It is also a good idea to inspect the battery compartment thoroughly, as dead batteries sometimes release caustic chemicals that could cause damage to the remote. If changing the batteries does not solve the issue, it may be that there are other issues that require attention by a professional. For instance, if the buttons appear stuck or damaged it could be necessary to disassemble the remote and rebuild its components. You could also try reprogramming the vehicle to recognize the new device.
Buttons
Through frequent use, key fobs could wear out and become dirty. This is not unusual however it can cause buttons to cease working or require a long press to work. This can be very frustrating particularly when you're away from your home and need to start your car. Even malfunctioning or worn-out buttons can be fixed with a bit of time and the tools you already have at home.
First, check that the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Look for signs of corrosion or other signs that the buttons are worn or damaged, like missing the conductive paint. Use a Q-tip, dipped in rubbing alcohol to gently clean any membrane contact that has become worn out or where conductive painting is missing. Don't rub too hard, as this could erode the conductive paint and prevent the button from firing when you press it.
Check key fob repair for any loose solder connections. Soldering them back into place will restore the button's functionality if this is the situation. You can use the same process to restore functionality to any other loose connection inside the fob.
If any of the rubber buttons at the front of the keyfob aren't working or need to be pressing extremely hard the graphite disks at the back of the button could have worn out and need to replaced. It is usually done by rubbing a pen across the disks. This should bring the button to life.
If none of these solutions work, or if you still cannot get the button to respond when you press it hard, it could be that the circuitry has failed. This can be fixed with a quick clean and refitting, but it's best to have an extra fob on hand in the event that this method doesn't work for you.
Circuitry
The circuit board in the remote control could be dirty, regardless of whether the buttons on the key fob work or not. This issue can be fixed through a thorough examination. The most frequent causes of dirty circuit boards are water and damaged cases. A damaged case can allow water and other debris to pass through and short circuit the electronic components. Water can also damage pins and connectors that are small on the board, which are known as via's.
If you're able to open your key fob and aren't afraid of a little mess, we can take off the buttons and solder new ones in their place. Also, it's worth checking the connections between the battery terminals. They can get very dirty and if they're loose, the buttons may not work or may even remain in their down position. Soldering the terminals and button's back in place is usually all it takes to restore the key fob that is not working to working order.
Non-Remote transponder chips
The sealed non-remote chips are more durable than their remote fobs. However, they are susceptible to breaking when a hole is made into them or in the event that a door handle of a car or lawnmowers plows over them. Fuse failures are usually to blame for non-remote chips failures.
If you're handy enough to open up a sealed non-remote key fob and are willing to put up with the mess, you can take off the circuit board and check the fuse with a multimeter to ensure that it is functioning as intended. function. If you're not comfortable doing this, go to your local hardware store or the Oreilly's and they will usually have a radio frequency tester that can tell you whether the key fob sending a signal.
Programming
Key fobs aren't impervious to destruction and are susceptible to damage by a variety of factors. They may lose their connection to the receiver in your car because of shock or a low battery, which requires them to be reprogrammed. A professional auto locksmith, or the main dealer can reprogram your keyfob and get it up and running again. If resetting or fixing your keyfob does not work it may be necessary to replace it.