How to Fix a Key Fob That isn't Working

If your key fob doesn't work There are a few simple steps that can be taken to fix it. First, make sure that it's not the backup remote.

If your backup remote cannot lock and unlock the doors of your vehicle, it is likely that the primary remote key repairs isn't working. Most problems with car remote keys result from circuitry or battery issues.

Battery

The battery in the key fob could be worn out over time. It is easy to replace batteries. However, it is important that you choose the right type. You can check your owner's guide or contact the manufacturer to find out the right kind. It's also a good idea to examine the battery compartment carefully, as dead batteries sometimes leak caustic chemicals that can damage the remote. If changing the battery doesn't fix the problem there may be additional issues requiring professional attention. If buttons are broken or stuck, for example it could be necessary to take the remote apart and rework each component. You could also try reprogramming the vehicle to recognize the new key fob.

Buttons

Through repeated use, key repair shop fobs may get dirty and worn. It is not uncommon for buttons to cease functioning, or remote key repair require a hard push to make them work. This can be a huge hassle, especially if you are out of town and need to start your vehicle. Fortunately, even worn-out or malfunctioning buttons can often be fixed with a little time and a few items you may already have around the home.

First, make sure that the batteries have been correctly placed and that the indentation on the back of the button has been filled. Open the remote key repair carefully and look over the circuit board. Check for signs of corrosion or other signs that the buttons are worn or damaged, such as missing paint that is conductive. Use a Q-tip, dipped in rubbing alcohol to gently clean any membrane contact that is worn out or has conductive paint missing. Be careful not to rub too hard, as this can erode the conductive paint and stop the button from firing when pressed.

Also, be sure to check the battery connector's terminals for a loose solder connection. If this is the case, soldering them back in place can bring back function to the button. You can use the same procedure to restore functionality to any other loose connection within the fob.

If any of the rubber buttons on the front of the keyfob aren't working or require being press extremely hard, the graphite disks at the back of the button could have worn out and require replacement. You can usually do this by rubbing a pencil over the disks. This should bring the button back to life.

If all of this doesn't help or if the button still does not respond to a hard push It could be the case that the circuit board has gone bad. It is possible to fix this by a quick clean, and replacing the solder, but it is best to have an extra fob on hand in the event that this method doesn't work for you.

Circuitry

If the key fob buttons function, the circuit board inside the remote could be dirty. This problem can be resolved by a thorough inspection. Broken cases and water are the most frequent causes of boards that are dirty. A damaged case allows water and other debris to get in and short out the electronic components. Water can also eat away at pins and connectors that are small on the board called via's.

If you're able to open your key fob and don't mind making a mess, we can take off the buttons and put new ones in their place. Also, it's worth checking the connections between the battery terminals. If they are loose, the buttons could not function or get stuck in their down position. Soldering the terminals and button's back in their place is generally all that's needed to return the key fob that is not working to working condition.

Non-Remote transponder chips

Sealed non-remote transponder chips are more durable than remote fobs they are contained in, but they can be damaged by a hole that is made in them or pushed over by a lawnmowers blade or door handle for a car. Most of the time non-remote transponder chip malfunctions could be attributed to a blown fuse.

If you're able to remove a sealed non-remote key fob and are able to bear the mess, you can take off the circuit board and test the fuse with a multimeter to ensure that it is functioning as intended. function. If you're not comfortable doing this, visit your local hardware store or Oreilly's, and they'll usually have an radio frequency tester that can let you know whether the key fob is transmitting a signal.

Programming

Key fobs are subject to lots of abuse and aren't completely indestructible. They may lose their connection with the receiver in your vehicle due to shocks or a low-battery, which requires reprogramming. A professional auto locksmith or dealer can reprogram your key fob to get it working again. If resetting or fixing the keyfob is not working it may be necessary to replace it.