The Worst Advice We've Ever Received On Remote Key Repair
How to Fix a Key Fob That isn't Working
If your key fob does not work then you can fix it by following a few simple steps. First, make sure that it's not your backup remote.
If your backup remote cannot lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't functioning. The most frequent causes of key malfunctions for car remotes are issues with the circuitry or battery.
Battery
The battery inside the key fob may be worn out over time. It is relatively easy to replace the battery, however it is important to ensure you select the correct one and you can consult your owner's manual or contact the dealer for the manufacturer to determine the type of battery you require. It is also essential to check the battery compartment, since 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 could be because there are other issues that require professional attention. For instance, if the buttons appear stuck or broken It may be necessary to disassemble the remote and rework its parts. It is also possible to reprogramme the vehicle to recognize the new remote.
Buttons
From frequent use, key fobs may become worn and dirty. This is not unusual, but it can cause buttons to cease functioning or require a hard press for them to function. This can be very frustrating particularly if you're away from home and you need to start your vehicle. Even worn-out or malfunctioning buttons can be fixed with a little effort and materials you already have at home.
First, verify that the batteries have been correctly placed and that the indentation at the back of the button is filled. Take the remote apart and inspect the circuit board. Examine for signs of rust or other signs that the buttons are worn or damaged, like missing the conductive paint. Use a Q-tip that has been dipped in rubbing alcohol to gently clean any membrane contact that has damaged or where conductive painting is missing. Don't rub too hard, as this could erode the conductive paint and stop the button from firing when you press it.
Also, be sure to check the battery connector's terminals for an unattached solder connection. If this is the case, soldering them back in place may restore functionality to the button. You can follow the same process to restore functionality to any other loose connection in the fob.
If any of the rubber buttons at the front of the keyfob isn't working or require being pressing extremely hard the graphite disks on the back of the button may have worn out and will require replacement. This can be done by rubbing a pencil over the disks, which will bring the button back to its original state.
If none of this is useful or if the button still doesn't respond to a firm press It could be because the circuit board itself has gone bad. It is possible to fix the issue by cleaning and re-soldering your fob, but you should have another spare in case it does not work.
Circuitry
If the key fob buttons function the circuit board that is inside the remote could be dirty. The issue can be solved through a thorough examination. The most common causes for dirty circuit boards is water and broken cases. A damaged case could allow water and other debris to enter the circuit board, which can cause it to short out. Water can also eat away at pins and connectors that are small on the board, referred to as via's.
If you're able to open up your key fob and don't mind a little mess, we can de-solder the buttons and put new ones in their place. key fob repair near me 's also worth checking the battery terminal connections. If they are loose, the buttons might not work or even become stuck in their down position. Soldering the terminals and buttons to their original positions is often enough to restore a non-working fob to working.
Non-Remote transponder chips
The non-remote chips that are sealed are more durable than remote fobs, but they can be cracked if a hole is drilled in them or if a car door handle or lawnmowers plows over them. Most of the time non-remote transponder chip malfunctions can be attributed to blowing fuses.
If you're able to remove a sealed non-remote key fob and are willing to put up with the mess, you can easily remove the circuit board and examine the fuse using a multimeter for proper diode function. If you're not confident doing this, visit your local hardware store or the Oreilly's and they usually have a RF frequency tester that will let you know whether the key fob is transmitting a signal.
Programming
Key fobs endure a lot of abuse and aren't completely indestructible. They may lose their connection to the car's receiver because of shock or a low battery, requiring the reprogramming. Full Statement or main dealer can reprogram your key fob and get it working again. In the rarer case that resetting and repairing your key fob doesn't work, it could be time to replace it completely.