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How to Fix a Key Fob That isn't Working

If your key fob doesn't work, a few easy steps can fix it. The first step is to make sure it's not the backup remote.

If the backup remote is able to lock and unlock your car key repair cost doors then there is likely an issue with the primary remote. Most problems with car remote repair keys near me are caused by circuitry or battery problems.

Battery

It is not uncommon for the battery inside a key fob for cars to wear out. It is simple to replace batteries. However it is crucial to select the right kind. You can consult your owner's guide or contact the manufacturer to determine the correct type. It's recommended to inspect the battery compartment with care, as dead batteries sometimes leak harmful chemicals that can harm the remote. If replacing the batteries doesn't solve the problem, it may be that there are other issues that require professional attention. For instance, if buttons seem to be stuck or broken, it may be necessary to disassemble the Remote Key Repair and rework its parts. You can also try reprogramming the vehicle to recognize the new key fob.

Buttons

Key fobs may become dirty and worn-out from frequent use. This is not atypical, but it can cause buttons to cease working or require a hard press for them to function. This can be very frustrating especially if you're away from home and you need to start your car. Even worn-out or malfunctioning buttons are often fixable with a bit of time and tools you already have at home.

First, check 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 examine the circuit board. Look for signs of corrosion or other indications that buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip, dipped in alcohol to gently clean any membrane contact that is worn out or where conductive paint is missing. Avoid rubbing too hard, as this can erode the conductive painting and prevent the button from firing when pressed.

Check the battery connector's terminals for loose solder connections. Soldering them back in place can restore the button's functionality if this is the situation. You can apply the same method to restore functionality to any other loose connection in the fob.

If any of the rubber buttons located at the front of the keyfob are not working or need to be press extremely hard the graphite disks on the back of the button may have worn out and will require replacement. You can usually do this by rubbing a pencil over the disks. This will bring the button back to life.

If none of these solutions work, or if you still cannot get the button to respond when pressed hard, it could be that the circuitry is failing. This can sometimes be repaired by a quick clean and refitting, but it's ideal to have a spare fob on hand in the event that this method fails for you.

Circuitry

The circuit board of the remote control could be dirty, regardless of whether the buttons on the key fob are working or not. A very thorough inspection is usually enough to fix this issue. Broken cases and water are the most common causes of boards that are dirty. A broken case allows water and other debris to get in and short circuit the electronics. Water can also eat through pins and vias, which are small connectors on the board.

If you're able to open up your key fob and aren't afraid of making a 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. They can become very dirty and if they're loose the buttons might not function or even stick in their down position. Soldering terminals and buttons back to their original positions is often enough to restore a non-working fob to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are much more durable than the remote fobs that contain them however they are still susceptible to being broken by a hole being drilled into them or run over by a lawnmower or car door handle. Most of the time, non-remote transponder chips fail, and this could be attributed to an exploded fuse.

If you're handy enough to open up the sealed key fob and can tolerate the mess, you can remove the circuit board and check the fuse using a multimeter for proper diode function. If you don't feel comfortable with this, visit your local Oreilly or hardware store and test their RF frequency tester. This will let you know whether the key fob transmits signals.

Programming

Key fobs are subject to lots of abuse and remote key repair aren't indestructible. They can lose their pairing to the car's receiver due to shock or a low battery, which calls for the reprogramming. A professional auto locksmith or a main dealer can reprogram your key fob and get it back up and running. If resetting or repairing the keyfob is not working it is possible to replace it.