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how to repair broken car key to Fix a Key Fob That isn't Working

If your key fob doesn't work, a few easy steps can fix it. The first step is to make sure it's not the backup remote.

If your backup remote is unable to lock and unlock the doors of your vehicle, it is most likely that the primary remote isn't working. Most car remote key failures are caused by circuitry or battery problems.

Battery

The battery inside a key fob can be worn out over time. It is simple to replace the battery. However it is essential that you choose the right type. You can refer to your owner's guide or contact the manufacturer to determine the right type. It is also important to check the battery compartment as dead batteries can leak toxic chemicals that could damage the remote. If replacing the batteries doesn't solve the issue it could be because there are other issues that require attention by a professional. If buttons are stuck or broken for instance it could be necessary to disassemble the remote and rework each component. You can also try reprogramming your vehicle to recognize the new key fob.

Buttons

Key fobs may become filthy and mobile car key repair near me worn out due to frequent use. This is not uncommon however, it can cause buttons to stop working 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 car. Fortunately, even worn out or damaged buttons can be fixed with a bit of time and some of the materials you might already have in the house.

First, check that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open 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 in rubbing alcohol to gently clean any membrane contact that has become worn-out or has conductive paint missing. Don't rub too hard as this can damage the conductive paint, and block the button from firing when it is pressed.

Also, be sure to check the battery connector terminals for an unattached solder connection. Soldering them back to their original position will allow the button to function again in the event that this is the situation. You can apply the same process to restore functionality to any other loose connection in the fob.

In the end, if any of the buttons made of rubber that are on the front of the key fob have stopped working or require a very hard press to work it is likely that the graphite disks at the back of the button are wearing down and need to be replaced. This is usually done by rubbing a pencil over the disks, which will bring the button back to life.

If all of this doesn't help, or if the button does not respond to a firm press, then it may be that the circuit board has become damaged. It is possible to fix this issue by cleaning and re-soldering the fob but you should also have a spare in case it doesn't work.

Circuitry

The circuit board of your remote control may be dirty, regardless of whether the buttons on the key fob function or not. A very thorough inspection will usually resolve this issue. Water and broken cases are the most frequent causes of dirty boards. A damaged case could let water and other debris to enter the circuit board, which can cause it to short. Water can also eat away at pins and connectors that are small on the board, referred to as via's.

If you're handy enough to open your key fob, and you're not afraid of a little mess, we can de-solder the buttons and solder new ones in their place. It's also worth checking the connections between battery terminals. They can become extremely filthy and if they're not tight enough, the buttons might not function or may even remain in their down position. Soldering the terminals and button's back in their place is generally all that's required to return the key fob that is not working to working order.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than the remote fobs that contain them however they are still susceptible to being cracked by a hole made in them or pushed over by a lawnmowers blade or mobile car key Repair near me door handle. Failures of the fuse are typically to blame for non-remote chip failures.

If you're able to open up a key fob that is sealed and are able to bear the mess, you can remove the circuit board and examine the fuse with an instrument to verify diode function. If you're not comfortable with this, visit your local Oreilly or hardware store and utilize their RF frequency tester. This will tell you whether the key fob transmits signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a lot of things. They can break their connection with the receiver in your vehicle due to shocks or low-battery, which requires the reprogramming. A professional auto locksmith or the main dealer can reprogram your keyfob to get it up and mobile car key repair near me running again. In the event that resetting or repairing your key fob isn't working, it could be time to replace it entirely.