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How to Fix a Key Fob That isn't Working
If your key fob won't work then you can fix it by following a few simple steps. First, make sure that it's not your backup remote.
If your backup remote cannot lock and unlock the doors of your car, it is likely that the main remote is not working. The most common causes of car remote key failure are battery or circuitry issues.
Battery
It is not uncommon to find a battery on the car key fob to wear out. It is simple to replace a battery. However it is essential that you use the correct kind. You can consult your owner's manual or call the manufacturer to find out the correct type. It's recommended to inspect the battery compartment carefully because dead batteries can leak harmful chemicals that can damage the remote. If replacing the battery does not solve the issue, there may be other issues that require attention from a professional. For instance, if the buttons seem stuck or damaged it could be necessary to disassemble the remote and rework its parts. You could also try reprogramming the vehicle to recognize the new key fob.
Buttons
Through repeated use, key fobs can wear out and become dirty. simply click the up coming website is not unusual however it can cause buttons to cease working or require a very long press to work. This can be very frustrating especially when you're away from home and need to start your car. Fortunately, even worn out or broken buttons can usually be fixed with just a bit of time and a few items you might already have in the home.
First, make sure the batteries are properly charged and that the indentation on the back of the button is filled. Then, carefully open up the remote and inspect the circuit board. Look for signs of corrosion or other signs that the buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip dipped into rubbing alcohol to gently clean any membrane contact that is worn-out or where conductive paint is missing. Do not rub too vigorously in order to damage the conductive paint and prevent the button from firing when you press it.
Also, be sure to check the battery connector terminals for any loose solder connections. If this is the case, simply connecting them back can restore functionality to the button. The same process can be used to restore function to any loose connections within the fob.
If any of the rubber buttons at the front of the keyfob isn't working or require being pressing very hard the graphite disks at the back of the button could have worn out and will need to replaced. This can be done by rubbing a pencil on the disks, which will bring the button back to working.
If all of this doesn't help or if the button still doesn't respond to a hard push It could be the case that the circuit board itself has become damaged. click to read is possible to fix this issue by cleaning and re-soldering the fob, but you should have an extra in case it does not work.
Circuitry
The circuit board in the remote control could be dirty, regardless of whether the buttons on the key fob are working or not. This issue can be fixed through a thorough examination. Broken and damaged cases are the most common causes of dirty boards. A damaged case could allow water and other debris to enter the circuit board, which can cause it to short. Water can also eat away at pins and small connectors on the board, referred to as via's.
If you're handy enough to remove your key fob, and you're not afraid of making a mess, we can remove the solder from the buttons and put new ones in their place. It's also worth looking at the battery terminal connections. They can become very dirty and if they're loose the buttons may not work or may even remain in their down position. Soldering the terminals and buttons 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 more durable than remote fobs that contain them however they are still susceptible to being damaged by a hole that is made in them or pushed over by a lawnmower or door handle for a car. Failures of the fuse are typically the cause of non-remote chip failures.
If you're handy enough to remove the sealed key fob and can tolerate the mess, you can easily remove the circuit board and test the fuse using an instrument to verify diode function. If you don't feel comfortable with this, go to your local Oreilly or hardware store and utilize their RF frequency tester. This will tell you whether the key fob sends an RF signal.
Programming
Key fobs are subject to many abuses and aren't indestructible. They can lose their pairing to the car's receiver due to shock or a low battery, which requires them to be reprogrammed. A professional auto locksmith or main dealer can reprogram your key fob to get it functioning again. If resetting or fixing your key fob fails, you may need to replace it.