How to Fix a Key Fob That isn't Working

If your key fob isn't working There are a few simple steps that can fix it. The first step is to be sure that it's not your backup remote.

If your backup remote cannot lock and unlock the doors of your car, it is likely that the main remote is not 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 the battery. However it is crucial that you choose the right kind. You can consult the owner's manual or contact the manufacturer to determine the right kind. It is also a good idea to inspect the battery compartment carefully because dead batteries can leak harmful chemicals that can cause damage to the remote. If changing the battery doesn't fix the issue there could be other issues that require attention from a professional. If the buttons are broken or stuck, for example it might be necessary to remove the remote and rebuild each component. You can also try reprogramming your car to recognize the new key fob.

Buttons

Due to frequent use, key fobs could wear out and become dirty. This is not atypical, but it can cause buttons to stop functioning or require a hard press for them to function. This can be extremely frustrating especially if you're away from home and you need to start your vehicle. Even malfunctioning or worn-out buttons are often fixable with a little effort and tools you already have at home.

First, check that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully remove the remote and examine the circuit board. Look for evidence of rust, or other signs the buttons are damaged or worn. For example, conductive paint may be missing. Use a Q-tip dipped into 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 stop the button from firing when pressed.

Check the battery connector terminals carefully for any loose solder connections. If this is the case, connecting them back can restore functionality to the button. You can use the same method to restore functionality to any other loose connection within the fob.

If any of the rubber buttons on the front of the keyfob are not working or need to be press extremely hard the graphite disks on the back of the button could have worn out and require replacement. This can be done by rubbing a pencil over the disks. This should bring the button back to its original state.

If none of this is helpful, or if the button doesn't respond to a firm press, then it may be that the circuit board has gone bad. It is possible to fix this by a quick clean and refitting, but it's ideal to have a spare fob in case this method fails for you.

Circuitry

The circuit board of your remote control car key repairs control may be dirty, regardless of whether the buttons on the key fob are working or not. The issue can be solved by a thorough inspection. The most common causes of dirty circuit boards is water and damaged cases. A damaged case allows water and other debris to enter and short circuit the electronics. 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 remove your key fob and don't mind making a mess, we can remove the solder from the buttons and put new ones in their place. Also, it's worth checking the connections between battery terminals. If they're loose, emergency Car key repair the buttons could not function properly or become stuck in their down position. Soldering the terminals and buttons back into place is typically all that's required to return the key fob that is not working to working condition.

Non-Remote transponder chips

The non-remote chips sealed in a sealed case are more durable than remote fobs, but they are susceptible to breaking in the event of a hole being drilled into them or when a door handle for a emergency car key Repair or lawnmowers is pushed over them. Most of the time, non-remote transponder chip malfunctions can be attributed to an exploded fuse.

If you are not comfortable opening the key fob, you can remove the circuitboard and utilize a multimeter to check that the diode is functioning correctly. If you're not comfortable doing this, head to your local hardware store or Oreilly's and they'll usually have an radio frequency tester that can tell you if the key fob is transmitting a signal.

Programming

Key fobs endure a lot of abuse and aren't impervious to damage. They may lose their connection to the receiver in your emergency car key repair because of shock or a low battery, which requires the reprogramming. A professional auto locksmith or main dealer can reprogram your keyfob to get it functioning again. If, in the unlikely event that resetting or repairing your key fob fails it may be time to replace it entirely.