3 Reasons Commonly Cited For Why Your Remote Key Repair Isn't Working (And How To Fix It)
How to Fix a Key Fob That isn't Working
If your key fob isn't functioning There are a few simple steps that can fix it. The first step is to make sure that it's not your backup remote.
If your backup remote can lock and unlock the doors of your car, then it is likely that the main remote is not working. Most problems with car remote keys are caused by circuitry or battery issues.
Battery
The battery inside the key fob may get worn out over the course of time. It is quite simple to change out batteries, but it is essential to ensure you choose the correct type and you can consult the owner's manual or talk to the dealer of the manufacturer to determine the type of battery you need. It is also important to inspect the battery compartment as dead batteries can leak caustic chemicals which can damage the remote. If changing the batteries doesn't solve the issue it could be that there are other issues that require attention from a professional. If the buttons are stuck or broken, for example it might be necessary to remove the remote and rebuild each component. It is also possible to reprogramme the vehicle to recognize the new device.
Buttons
Through frequent use, key fobs could wear out and become dirty. This is not atypical, but it can cause buttons to stop working or require a difficult press to get them to work. This can be extremely frustrating especially if you're out of town and need to start your vehicle. Fortunately, even worn-out or damaged buttons can be fixed with just a bit of time and a few materials you might already have in the home.
First, ensure that the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and look at the circuit board. Examine for evidence of rust, or other indications that the buttons are damaged or worn. For instance there could be conductive paint missing. Then, using the Q-tip, dipped in rubbing alcohol, gently clean any membrane contacts that have damaged or have conductive paint missing. Don't rub too hard as this can damage the conductive paint and stop the button from firing when you press it.
Also, be sure to check the battery connector's terminals to ensure a loose solder connection. If this is the case, simply connecting them back may restore function to the button. The same method can be used to restore functionality to any other loose connections inside the fob.
If any of the rubber buttons located at the front of the keyfob isn't working or require being pressed very hard the graphite disks at the back of the button could have worn out and need to replaced. You can usually do this by rubbing a pencil over the disks. key repair near me will bring the button back to life.
If all of this doesn't help or if the button still does not respond to a hard push, then it may be because the circuit board is damaged. It is possible to fix the issue by cleaning and re-soldering the fob however, you should have another spare in case it does not work.
Circuitry
If the key fob buttons function the circuit board in your remote might be dirty. A thorough examination is usually enough to fix this issue. Broken and damaged cases are the most frequent causes of dirty boards. A damaged case can allow water and other debris to pass through and short circuit the electronic components. Water can also eat through pins and vias, which are small connectors found on the board.
If you're able to open your key fob, and you're not afraid of making a mess, we can take off the buttons and solder new ones in their place. It's also worth looking at the battery terminal connections. They can become extremely filthy and if they're not tight enough, the buttons may not work or may even remain in their down position. Soldering terminals and buttons back to their proper positions is usually enough to return a malfunctioning fob back to working.
Non-Remote Transponder Chips
Sealed non-remote transponder chips are much more durable than remote fobs that have them but they can be damaged by a hole that is that is drilled into them or over by a lawnmower or door handle for a car. The majority of non-remote transponder chip malfunctions could be attributed to blowing fuses.
If you are not comfortable opening the key fob, you may take the circuit board off and use a multimeter to verify that the diode is working properly. If you're not comfortable with this, you can go to your local Oreilly or hardware store and utilize their RF frequency tester. This will inform you whether the key fob is sending a signal.
Programming
Key fobs aren't indestructible and are susceptible to being damaged by a lot of things. They may lose their connection with the receiver in your vehicle due to shocks or low battery, which calls for the reprogramming. A professional auto locksmith or dealer can reprogram your key fob and get it functioning again. If, in the unlikely event that resetting and fixing your key fob doesn't work it could be the time to replace it completely.