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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 be taken to fix it. The first step is to be sure that it's not your backup remote.

If your backup remote cannot unlock and lock the doors of your vehicle, it is likely that the main remote is not working. The majority of mobile car key repair near me remote key malfunctions result from circuitry or battery problems.

Battery

It is not unusual for the battery in a key fob for cars to get worn out. It is relatively easy to change out a battery, although it is essential to ensure that you select the correct one that you can refer to your owner's manual or contact the dealer of the manufacturer to determine the type of battery you need. It is also important to check the battery compartment, as batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the battery doesn't fix the problem, there may be other issues requiring professional attention. For example, if buttons seem to be stuck or damaged, it may be necessary to take the remote apart and rebuild its components. It is also possible to reprogramme the vehicle to recognize the new fob.

Buttons

Due to repeated use, key fobs may wear out and become dirty. It is not common for buttons to stop functioning, or require a long press to get them working. This can be a huge hassle, especially if you are out of town and need to start your vehicle. Fortunately, even worn out or broken buttons can usually be fixed with just a bit of time and a few items you may already have around the home.

First, check that the batteries are properly inserted and that the indentation on the back of the button is filled. Take the remote apart and inspect the circuit board. Check for signs of corrosion or other indications that buttons are worn out or damaged, such as missing paint that is conductive. Then, using a Q-tip dipped in rubbing alcohol, gently clean any membrane contacts that are worn or have conductive paint missing. Avoid rubbing too hard as this can erode the conductive paint and block the button from firing when the button is pressed.

Also, be sure to check the battery connector's terminals for an unattached solder connection. If this is the case, reconnecting them may restore functionality to the button. The same procedure can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons on the front of the keyfob isn't working or need to be press very hard, the graphite disks at the back of the button could have worn out and will require replacement. You can do this by rubbing a pencil over the disks. This should bring the button to life.

If all of this doesn't help or if the button still doesn't respond to a firm press, then it may be the case that the circuit board has gone bad. This can sometimes be repaired with a quick clean and refitting, but it's ideal to have a spare fob available in the event this method does not work for you.

Circuitry

If the keys fob buttons are functioning the circuit board that is inside your remote may be dirty. A very thorough inspection will usually resolve this issue. Broken and damaged cases are the most frequent causes of dirty boards. A broken case can let water and other debris to get into the circuit board, which can cause it to short. Water can also eat away at pins and connectors on the board called via's.

If you're handy enough to remove your key fob and aren't afraid of making a mess, we can remove the solder from the buttons and then solder new ones in their place. It's also worth looking at the battery terminal connections. They can become extremely dirty and if they're loose, the buttons may not work or even stick in their down position. Soldering the terminals and buttons back into place is typically all that's needed to return car keys repairs near me that are not in functioning condition.

Non-Remote Transponder Chips

The sealed non-remote chips are more durable than remote fobs, however they are susceptible to breaking in the event of a hole being drilled in them, or in the event that a door handle of a car remote key repair near me or lawnmowers is pushed over them. Failures of the fuse are typically to blame for non-remote chip failures.

If you're able to remove a Mobile key Repair near me fob that is sealed and are willing to put up with the mess, you can take off the circuit board and examine the fuse using a multimeter to ensure that it is functioning as intended. function. If you're not confident doing this, head to your local hardware store or Oreilly's and they'll usually have an RFID frequency tester that can let you know whether the key fob is sending a signal.

Programming

Key fobs endure many abuses and aren't indestructible. They can lose their pairing with the receiver inside your vehicle due to shocks or low-battery, which requires reprogramming. A professional auto locksmith or main dealer can reprogram your key fob and get it functioning again. If resetting or replacing your keyfob does not work it is possible to replace it.