How to Fix a Key Fob That isn't Working

If your key fob isn't working A few easy steps can be taken to fix it. First, ensure that it's not your backup remote.

If your backup remote can lock and unlock the doors of your vehicle, it is likely that the main remote isn't working. Most problems with car key fob repairs remote keys are caused by circuitry or battery issues.

Battery

The battery in a key fob can get worn out over the course of time. It is fairly easy to change out a battery, although it is crucial to ensure that you select the correct one; you can look in your owner's manual, or Mobile Key Repair contact the dealer for the manufacturer to determine the type of battery you require. It is also a good idea to inspect the battery compartment with care, as dead batteries sometimes release caustic chemicals that could damage the remote. If changing the batteries doesn't solve the problem it could be that there are other issues that require attention from a professional. For example, if buttons appear stuck or damaged It may be necessary to take the remote apart and rebuild its components. It is also possible to reprogramme the vehicle to recognize the new fob.

Buttons

Key fobs can become dirty and worn out from frequent use. This is not atypical however it can cause buttons to stop functioning or require a hard press for them to work. This can be frustrating especially when you're away from home and need to turn on your car. Even broken or damaged buttons are often fixable with a little time and tools you already have at home.

First, make sure that the batteries are correctly inserted and that the indentation on the back of the button is filled. Take the remote apart and examine the circuit board. Check for signs of corrosion or other indications that the buttons are worn or damaged, like missing conductive paint. Use a Q-tip that has been dipped in rubbing alcohol, gently clean any membrane contacts that have 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 pressed.

Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position can restore the button's functionality if this is the case. You can apply the same procedure to restore functionality to any other loose connection in the fob.

If any of the rubber buttons located at the front of the keyfob aren't functioning or require to be pressing extremely hard the graphite disks on the back of the button might have worn out and will need to replaced. This can usually be done by rubbing a pencil over the disks, which should bring the button back to working.

If none of these solutions work, or if you still cannot get the button to respond when you press it hard, it could be that the circuitry has failed. It is possible to fix this by cleaning and re-soldering the fob but you should also have an extra in case it doesn't work.

Circuitry

If the key fob repairs fob buttons are working the circuit board that is inside the remote could be dirty. This issue can be fixed by a thorough inspection. Water and broken cases are the most frequent causes of dirty boards. A damaged case can let water and other debris to get into the circuit board, which can cause it to short. Water can also damage pins and connectors that are small on the board, which are known as via's.

If you're handy enough to open your key fob and aren't afraid of a little mess, we can remove the solder from the buttons and then solder new ones in their place. It's also worth checking the battery terminal connections. They can become extremely filthy and if they're not tight enough, the buttons may not work or mobile Key Repair may even remain in their down position. Soldering the terminals back to their proper positions is usually enough to bring a non-working fob to working.

Non-Remote Transponder Chips

Sealed non-remote transponder chip are more durable than the remote fobs that contain them but they can still be cracked by a hole made in them or pushed over by a lawnmowers blade or car door handle. The failure of the fuse is usually the cause of non-remote chip failures.

If you're not confident opening the key fob, you can take the circuit board off and use a multimeter to verify that the diode is functioning properly. If you don't feel comfortable with this, you can visit your local Oreilly or hardware store and utilize their RF frequency tester. This will tell you whether the key fob transmits a signal.

Programming

Key fobs are not indestructible and are susceptible to damage by a lot of things. They may lose their connection to the car's receiver due to shock or a low battery, requiring them to be reprogrammed. A professional auto locksmith, or the main dealer, can reprogram your keyfob to get it functioning again. If, in the unlikely event that resetting and fixing your mobile key repair (More inspiring ideas) fob doesn't work, it could be time to replace it all over again.