Ten Things You've Learned In Kindergarden That'll Help You With Remote Key Repair
How to Fix a Key Fob That isn't Working
If your key fob doesn't work, you can fix it by following some simple steps. The first step is to be sure that it's not your backup remote.
If the backup remote is able to lock and unlock your car door, it is most likely an issue with the primary remote. Most problems with car remote keys are caused by battery or circuitry problems.
Battery
The battery in the key fob could get worn out over the course of time. It is quite simple to change out the battery, however it is essential to ensure that you select the correct one and you can consult the owner's manual or talk to the dealer for the manufacturer to find out what kind of battery you require. It is also crucial to examine the battery compartment, as batteries that are not working properly can release caustic chemicals which can damage the remote. If replacing the battery does not fix the problem there may be additional issues requiring professional attention. If buttons are stuck or broken, for example, it may be necessary remove the remote and rebuild each component. key repair shop near me could also try reprogramming the vehicle to recognize the new key fob.
Buttons
From repeated use, key fobs can get dirty and worn. This is not uncommon, but it can cause buttons to cease working or require a long press to function. This can be a huge hassle particularly if you're away from home and need to start your vehicle. Fortunately, even worn out or broken buttons can usually be fixed with a bit of time and a few items you may already have around the home.
First, make sure that the batteries are properly installed and that the indentation on the back of the button has been filled. Then, open the remote with care and inspect the circuit board. Look for signs of corrosion or other indications that the buttons are worn out or damaged, such as missing paint that is conductive. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has worn-out or where conductive painting is missing. Be careful not to rub too hard, as this can erode the conductive paint and block the button from firing when it is it is pressed.
Also, be sure to check the battery connector terminals for an unattached solder connection. Soldering them back to their original position can restore the button's functionality in the event that this is the case. The same procedure 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 are not functioning or require to be pressed extremely hard the graphite disks at the back of the button may have worn out and will require replacement. You can usually do this by rubbing a pencil over the disks. This should 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 this by a quick clean, and refitting, but it's ideal to have a spare fob on hand in the event that this method does not work for you.
Circuitry
The circuit board in your remote control may be dirty, regardless of whether the buttons on the key fob work or not. A thorough examination is usually enough to fix this problem. Broken cases and water are the most common causes of dirty boards. A damaged case can 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 tiny connectors that are found on the board.
If you're handy enough to open your key fob and don't mind some mess, we can take off the buttons and put new ones in their place. Also, you should check the connections between the battery terminals. They can become extremely dirty and if they're loose the buttons might not function or even stay in their down position. Soldering terminals and buttons back into place is usually enough to return a malfunctioning fob to a working condition.
Non-Remote transponder chips
Sealed non-remote transponder chips are much more durable than remote fobs that contain them however they are still susceptible to being damaged by a hole that is that is drilled into them or over by a lawnmower or car door handle. The majority of non-remote transponder chips fail, and this can be blamed on blowing fuses.
If you're able to remove a key fob that is sealed and are willing to put up with the mess, you can take off the circuit board and examine the fuse using a multimeter for proper diode function. If you're not confident doing this, head to your local hardware store or the Oreilly's and they will usually have a RFID frequency tester that can tell you whether the key fob transmitting a signal.
Programming
Key fobs take many abuses and aren't indestructible. They may lose their connection with the receiver inside your vehicle because of shocks or a low battery, requiring the reprogramming. A professional auto locksmith or a dealer in the main, can reprogram your keyfob and get it up and running again. In the rarer case that resetting or repairing your key fob isn't working it could be the time to replace it all over again.