20 Trailblazers Setting The Standard In Remote Key Repair

How to Fix a Key Fob That isn't Working

If your key fob doesn't work and you're not sure why, you can fix it by following some simple steps. The first step is to be sure that it's not the backup remote.

If the backup remote is able to lock and unlock your car door, then there's a likely issue with the primary remote. Most problems with car remote keys result from circuitry or battery issues.

Battery

The battery inside the key fob may wear out over time. It is simple to replace a battery. However it is essential that you use the correct type. You can refer to the owner's manual or contact the manufacturer to determine the right type. It is also crucial to inspect the battery compartment as batteries that are not working properly can release caustic chemicals that can harm the remote. If replacing the battery does not fix the issue, there may be other issues that require attention from a professional. If the buttons are broken or stuck, for example, it may be necessary remove the remote and rebuild each component. You could also try reprogramming the vehicle to recognize the new key fob.

Buttons

From frequent use, key fobs may become worn and dirty. It is not common to have buttons stop functioning, or require a hefty push to make them work. This can be extremely frustrating especially if you're out of town and need to start your vehicle. Even malfunctioning or worn-out buttons are often fixable with a little effort and materials you already have at home.

First, verify that the batteries have been correctly placed and that the indentation on the back of the button has been filled. Open the remote carefully and inspect the circuit board. Examine for signs of rust or other indications that buttons are worn out or damaged, such as missing the conductive paint. Use a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that are damaged or have conductive paint missing. Be careful not to rub too hard, because this could damage the conductive paint and stop the button from firing when it is it is pressed.

Check the battery connector's terminals carefully for any loose solder connections. If this is the case, simply reconnecting them can restore function to the button. You can follow the same method to restore functionality to any other loose connection within the fob.

If any of the rubber buttons located at the front of the keyfob aren't working or require being pressed extremely hard the graphite disks on the back of the button may have worn out and require replacement.  broken key repair G28 Car Keys  can usually be done by rubbing a pencil across the disks, which should bring the button back to life.

If none of these solutions work or you not be able to get the button respond when pressed hard, it could be that the circuitry has failed. This can be fixed by a quick clean and replacing the solder, but it is best to have an extra fob available in the event this method doesn't work for you.

Circuitry

The circuit board inside your remote control could be dirty regardless of whether the buttons on the key fob are working or not. A thorough examination will usually resolve this problem. Water and broken cases are the most common causes of dirty boards. A damaged case can allow water and other debris to get in and short out the electronic components. Water can also destroy pins and connectors that are small on the board, which are known as via's.

If you're handy enough to remove your key fob and don't mind a little mess, we can de-solder the buttons and then solder new ones in their place. It's also worth looking at the battery terminal connections. If they're loose, the buttons might not work or even become stuck in their down position. Soldering the terminals and button's back in place is usually all that's needed to return the key fob that is not working to working order.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than the remote fobs that have them but they can still be broken by a hole being drilled into them or run over by a lawnmowers blade or door handle for a car. Fuse failures are usually the cause of non-remote chip failures.

If you're able to open a sealed non-remote key fob and can tolerate the mess, you can remove the circuit board and examine the fuse using an instrument to verify diode function. If you're not sure with this, you can visit your local Oreilly or hardware store and use their RF frequency tester. This will inform you whether the key fob is sending signals.

Programming

Key fobs endure many abuses and aren't impervious to damage. They may lose their connection to the car's receiver because of shock or a low battery, which requires the reprogramming. A professional auto locksmith or main dealer can reprogram the key fob and get it back working again. If resetting or replacing your keyfob does not work it may be necessary to replace it.