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How to Fix a Key Fob That isn't Working

If your key fob won't work and you're not sure why, you can fix it with a few simple steps. First, ensure that it's not your backup remote.

If your backup remote cannot unlock and lock the doors of your mobile car key repair near me, it is likely that the primary remote isn't working. The majority of car remote key malfunctions are caused by battery or circuitry problems.

Battery

It is not uncommon for the battery in a car key repair shop near me key fob to degrade. It is relatively easy to replace the battery, however it is important to ensure you use the right type; you can look in your owner's manual or contact the dealer for the manufacturer to find out the kind of battery you need. It is also crucial to examine the battery compartment, as dead batteries can leak toxic chemicals that could damage the remote. If replacing the batteries doesn't solve the problem it could be that there are other issues that require professional attention. If buttons are broken or stuck, for example, it may be necessary disassemble the remote and rework each component. You could also try reprogramming the vehicle to recognize the new remote.

Buttons

Key fobs can become filthy and worn out due to repeated use. This is not atypical however, it can cause buttons to stop working or require a hard press for them to work. This can be frustrating especially when you're away from your home and have to start your mobile car key repair near me. Even worn-out or malfunctioning buttons are often fixable with a little time and tools you already have at home.

First, make sure the batteries are up correctly and that the indentation on the back of the button is filled. Then, carefully remove the remote and look at the circuit board. Examine for signs of rust or other signs that buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip dipped into alcohol to gently clean any membrane contact that is worn out or where conductive painting is missing. Avoid rubbing too hard, since this could cause damage to the conductive paint and block the button from firing when pressed.

Check the battery connector terminals carefully for any loose solder connections. Soldering them back in place will allow the button to function again in the event that this is the case. You can use the same method to restore functionality to any other loose connection within the fob.

If any of the rubber buttons located at the front of the keyfob are not functioning or require to be pressing very hard the graphite disks on the back of the button might have worn out and need to replaced. It is usually done by rubbing a pencil over the disks. This should bring the button to life.

If none of these solutions work or you are unable to get the button to respond when pressed hard, it is possible that the circuitry has failed. This can sometimes be repaired with a quick clean and re-soldering, but it is best to have an extra fob available in the event this method fails for you.

Circuitry

If the key fob buttons are working the circuit board that is inside your remote might be dirty. A thorough inspection is usually enough to fix this problem. The most common causes for dirty circuit boards is water and broken cases. A broken case can allow water and other debris to get into the circuit board, causing it to short out. Water can also damage pins and connectors on the board, which are known as via's.

If you are handy enough to open your key fob, and aren't afraid of making a mess, we can take the buttons out of their sockets and put in new ones. It's also worth examining the battery terminal connections. If they're loose, the buttons may not function properly or become stuck in their down position. Soldering the terminals, and putting the button back in their place is generally all that's required to return keys that are not in working condition.

Non-Remote Transponder Chips

The non-remote chips sealed in a sealed case are more durable than remote fobs, however they are susceptible to cracking in the event of a hole being drilled into them or if a car door handle or lawnmowers is pushed over them. Failures of the fuse are typically the cause of non-remote chip failures.

If you're not confident opening the key fob, remove the circuitboard and utilize a multimeter to check that the diode is working properly. If you're not confident doing this, visit your local hardware store or Oreilly's and they usually have an RF frequency tester that will determine whether the key fob transmitting a signal.

Programming

Key fobs endure lots of abuse and aren't impervious to damage. They may lose their connection with the receiver in your vehicle key repairs due to shocks or a low battery, requiring the reprogramming. A professional auto key fob repair (over here) locksmith or a main dealer will be able to reprogram your key fob key repair and get it working again. If, in the unlikely event that resetting or repairing your key fob isn't working it could be the time to replace it completely.