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How to Fix a Key Fob That isn't Working

If your key fob isn't functioning, a few easy steps can fix it. First, make sure that it's not the backup remote.

If the backup is able to lock and unlock your car door, then there is likely an issue with the main Remote Key Repair. Most car remote key failures are caused by battery or circuitry problems.

Battery

It is not unusual to find a battery on a car key fob to get worn out. It is quite simple to change out a battery, although it is important to ensure that you select the correct one; you can look in your owner's manual, or contact the dealer of the manufacturer to determine the type of battery you require. It is also essential to check the battery compartment as dead batteries can leak caustic chemicals that can harm the remote. If changing the batteries doesn't solve the issue it could be that there are other issues that require attention by a professional. If the buttons are stuck or broken for instance it might be necessary to remove the remote and rebuild each component. You could also try reprogramming your vehicle to recognize the new key fob.

Buttons

From repeated use, key fobs can get dirty and worn. It is not uncommon to have buttons stop working, or to require a hefty press to get them working. This can be very frustrating especially when you're away from your home and have to switch on your car. Even broken or damaged buttons are often fixable with a little time and materials you already have at home.

First, check that the batteries are charged correctly 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 indications that the buttons have been worn or damaged. For example, conductive paint may be missing. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contact that has become worn out or where conductive painting is missing. Do not rub too vigorously, Remote Car Key Repair as this could erode the conductive paint and prevent the button from firing when it is pressed.

Also, make sure to inspect the battery connector terminals for a loose solder connection. If this is the case, reconnecting them can restore functionality to the button. The same process can be used to restore functionality to any other loose connections within the fob.

If any of the rubber buttons at the front of the keyfob are not functioning or require to be pressing extremely hard the graphite disks on the back of the button may have worn out and need to replaced. This is usually done by rubbing a pencil across the disks, which should bring the button back to working.

If none of these solutions work or you are unable to get the button to respond when pressed hard, it could be that the circuitry has failed. It is possible to fix this issue by cleaning and re-soldering the fob, but you should have an extra in case it does not work.

Circuitry

The circuit board in your remote control car key repairs control may be dirty regardless of whether the buttons on the key fob work or not. This issue can be fixed by a thorough inspection. The most common causes for dirty circuit boards are water and broken cases. A damaged case could let water and other debris to enter the circuit board, which can cause it to short. Water can also damage pins and vias, which are tiny connectors found on the board.

If you're handy enough to open up your key fob and aren't afraid of some mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the battery terminal connections. They can become very dirty and if they're loose the buttons might not function or even stick in their down position. Soldering the terminals and buttons to their proper positions is usually enough to bring a non-working fob to a working condition.

Non-Remote transponder chips

The sealed non-remote chips are more durable than their remote fobs. However, they are susceptible to breaking if a hole is drilled in them or if a car door handle or lawnmowers plows over them. The majority of non-remote transponder chip failures could be attributed to blowing fuses.

If you're handy enough to open up the sealed key fob and are able to bear the mess, you can easily remove the circuit board and test the fuse using an instrument to verify diode function. If you're not confident doing this, go to your local hardware store or Oreilly's, and they will usually have an RF frequency tester that will determine whether the key fob transmitting a signal.

Programming

Key fobs endure a lot of abuse and aren't completely indestructible. They can lose their pairing to the receiver in your car keys repairs near me because of shock or a low battery, which requires them to be reprogrammed. A professional auto locksmith or a main dealer can reprogram your key fob to get it functioning again. In the event that resetting and fixing your key fob isn't working, it could be time to replace it all over again.