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How to Fix a Key Fob That isn't Working

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

If your backup remote is unable to unlock and lock the doors of your car key remote repair near me, it is likely that the main remote is not working. The most common causes of Emergency car key Repair remote key failure are issues with the circuitry or battery.

Battery

It is not uncommon for the battery inside a key fob for cars to degrade. It is relatively easy to replace a battery, although it is important to make sure that you use the right type; you can look in your owner's manual, or contact the manufacturer's dealer to find out the kind of battery you need. It's also a good idea to examine the battery compartment with care since dead batteries may leak harmful chemicals that can damage the remote. If replacing the batteries doesn't solve the issue, it may be that there are other issues that require attention by a professional. If the buttons are stuck or broken for instance it could be necessary to disassemble the remote car key repairs and rework each component. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Through repeated use, key fobs may get dirty and worn. This is not atypical however it can cause buttons to cease functioning or require a hard press for them to work. This can be very frustrating especially when you're away from home and have to start your car. Fortunately, even worn-out or malfunctioning buttons can often be fixed with just a bit of time and a few materials you may already have around the 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 inspect the circuit board. Check for evidence of rust, or other indications that the buttons have been damaged or worn. For example, conductive paint may be missing. Use a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that have worn or have conductive paint missing. Do not rub too vigorously in order to damage the conductive paint and stop the button from firing when pressed.

Also, make sure to inspect the battery connector terminals for an unattached solder connection. Soldering them back into place will allow the button to function again If this is the situation. You can use the same procedure to restore functionality to any other loose connection in the fob.

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

If all of this doesn't help or if the button does not respond to a hard push, then it may be that the circuit board itself is damaged. It is possible to fix the issue by cleaning and re-soldering the fob however, you should have an extra in case it doesn't work.

Circuitry

The circuit board inside the remote control could be dirty, regardless of whether the buttons on the key fob function or not. The issue can be solved through a thorough examination. Water and broken cases are the most common causes of dirty boards. A broken case allows water and other debris to enter and short circuit the electronics. Water can also damage pins and vias, which are tiny connectors that are found on the board.

If you are handy enough to open your key fob, and aren't afraid of making an mess, you can remove the buttons from their sockets and then solder new ones. It's also worth checking the connections between battery terminals. They can get very filthy and if they're not tight enough, the buttons might not function or even stick in their down position. Soldering the terminals back into place is usually enough to bring a non-working fob to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than remote fobs they are contained in, but they can be broken by a hole being that is drilled into them or over by a lawnmower or door handle for a car key fob repair. Most of the time, non-remote transponder chips fail, and this could be attributed to blowing fuses.

If you're not comfortable opening the key fob, remove the circuitboard and utilize a multimeter to determine if the diode is functioning correctly. If you're not confident doing this, head to your local hardware store or Oreilly's and they will usually have an RF frequency tester that will determine whether the key repair shop fob sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged through a variety of causes. They can break their connection with the receiver inside your vehicle because of shocks or a low-battery, which requires changing the program. A professional auto locksmith, or main dealer can reprogram the keyfob to get it up and running again. If resetting or replacing your keyfob does not work it is possible to replace it.