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

If your backup remote car key repairs cannot lock and unlock the doors of your vehicle, it is likely that the main remote isn't working. The most frequent causes of key problems with your car key and repair remote are battery or circuitry issues.

Battery

It is not uncommon for the battery in the key fob for cars to wear out. It is easy to replace a battery. However it is essential to select the right type. You can consult your owner's guide or contact the manufacturer to determine the right kind. It is also a good idea to inspect the battery compartment carefully since dead batteries may leak harmful chemicals that can damage the remote. If changing the batteries does not solve the problem it could be because there are other issues that require attention by a professional. If the buttons are damaged or stuck for instance it could be necessary to remove the remote and rebuild each component. You could also try reprogramming your mobile Car key repair Near me to recognize the new key fob.

Buttons

Due to frequent use, key fobs can wear out and become dirty. It is not common for buttons to stop working, or to require a hefty press to make them work. This can be extremely frustrating particularly if you're out of town and need to start your vehicle. Even broken or damaged buttons can be fixed with a bit of time and materials you already have at home.

First, ensure that the batteries are charged correctly and that the indentation on the back of the button is filled. Then, carefully open the remote and inspect the circuit board. Examine for indications of rust or other indications that the buttons have been damaged or worn out. For instance, conductive paint may be missing. Use a Q-tip dipped into alcohol to gently clean any membrane contact that has damaged or where conductive paint is missing. Do not rub too vigorously, as this could erode the conductive paint and stop the button from firing when you press it.

Check the battery connector terminals carefully for any loose solder connections. If this is the case, reconnecting them can 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 located at the front of the keyfob aren't working or need to be press extremely hard the graphite disks on the back of the button may have worn out and need to replaced. You can usually do this by rubbing a pen across the disks. This should bring the button to life.

If none of this is helpful, or if the button still does not respond to a hard press, then it may be that the circuit board has gone bad. It is possible to fix this by a quick clean, and replacing the solder, but it is recommended to have an additional fob on hand in the event that this method does not work for you.

Circuitry

The circuit board inside your remote control could be dirty, regardless of whether the buttons on the key fob work or not. A thorough inspection will usually resolve this problem. The most common causes of dirty circuit boards is water and damaged cases. A broken case allows water and other debris to get in and short out the electronic components. Water can also eat away at pins and connectors on the board called via's.

If you're able to open up your key fob and aren't afraid of some mess, we can take off the buttons and put new ones in their place. It's also worth checking the battery terminal connections. If they are loose, the buttons could not function or get stuck in their down position. Soldering terminals and buttons back to their proper positions is usually enough to bring a non-working fob to working.

Non-Remote transponder chips

The sealed non-remote chips are more durable than remote fobs, but they are susceptible to cracking when a hole is made into them or if a car door key repair near me handle or lawnmower runs over them. Most of the time non-remote transponder chip malfunctions could be attributed to an exploded fuse.

If you're able to open the sealed key fob and are willing to put up with the mess, you can take off the circuit board and check the fuse using a multimeter for proper diode function. If you're not sure with this, you can visit your local Oreilly or hardware store and test their RF frequency tester. This will inform you whether the key fob sends signals.

Programming

Key fobs aren't indestructible and are susceptible to being damaged by a variety of factors. They may lose their connection with the receiver inside your vehicle due to shocks or a low battery, requiring reprogramming. A professional auto locksmith or main dealer, can reprogram your keyfob to get it functioning again. If resetting or fixing your key fob fails, you may need to replace it.