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Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a great way to unlock the doors and get started the car. There are a myriad of reasons the fob could stop working. This could be due to a dead battery or water damage, problems with receiver modules, as well as interference.

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Dead Coin Battery

A dead battery is the most frequent cause of your 500 key fob being inoperative. Modern key fobs offer limited operating range and must be within just a few inches of the vehicle to work. If you're far from your car and push the keyfob button it won't respond and display the message "Key Fob Not Detected".

If this occurs, replace the coin-cell battery (Part Number CR2032) by a new one of a reputable brand such as Panasonic Duracell or Energizer. They are available at your local hardware store, or online.

You can test the battery of your coin-cell by pressing the buttons while standing near your Fiat 500. The car will blink its parking lights and the key fob should be able to operate the lock and unlock switches.

If your fob's key doesn't work even after replacing the battery, there could be water damage that has prevented it from connecting to the module in your vehicle. Water damage can happen in a variety of ways, from a light splash to submerging your fob in salt water at the beach. If you suspect your fob was exposed to water, put it in a dry rice bag to draw the moisture back out. If that doesn't work, your fob may require reprogramming by a professional locksmith or dealer.

Water Damage

While the fob has some rubber seals that keep water from the chip's electronic circuit it, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater poses a particular risk to the circuit board of the fob that can cause it to short out and eventually die. The fob getting wet is not a good idea but if you drop it into a glass of water or do not remember to remove it from your pants pocket prior to running the washer Don't give up hope.

First remove the battery from the fob. Before replacing the battery clean the electronic chip using isopropyl, or a similar product. Check the fob to determine if it's functioning. If the key doesn't function then it might need to be changed. This is usually handled by a professional or dealer auto locksmith.

If the key is newer and hasn't been programmed to your vehicle, it will likely need to be replaced completely. A professional locksmith for cars can do this job. The locksmith will need the key to be cut to match your vehicle's ignition. The locksmith will also have to reprogram your fob in the vehicle's system. It's a simple and inexpensive process that can be completed within the next day.

Receiver Module Issues

One of the most common reasons why your 500 key fob might stop functioning is that it's out of range. The remote typically has an area of 30 feet or less, and if it's too far away from your car it won't respond to your commands. You can easily fix this by moving the remote closer to your vehicle until it responds.


If you've replaced the battery in your coin (commonly known as a "button" or "watch") and the fob won't work It could be because of an internal circuit board issue. Reprogramming the fob is usually the solution to the issue. You can find instructions on how to do this for the majority of automobiles by searching YouTube or consulting the owner's manual.

It is possible to replace the metal clips that hold the coin batteries in the correct position. If they loose tension, it may prevent your battery from sitting properly and cause your remote to malfunction.

In rare instances it is possible that the fob will become desync'd with your vehicle because of software or hardware issues. This can be a major problem, but you can usually resolve this issue by visiting a local dealer or auto locksmith to have them reprogram your fob. In certain instances the software might require reinstallation into your body control modules.

Interference

Interference can also cause the key fob to not be able to receive or transmit the signal. This could occur if the keyfob is in close proximity to a radio transmitter, like a cell phone or radar detector. Other reasons why the key fob might not function include a poor connection to the buttons and internal chip or water damage.

If the key fob stopped working one day without notice or after trying every option at home to solve it e.g. replacing the battery, reprogramming it and using the spare key fob, you might have a damaged receiver module on your 500. The receiver module is located under the dash, and it picks up the radio frequency signals from the key fob. It converts them to electronic commands that the vehicle interprets.

Fortunately, there's fiat key to reset all of the on-board systems in your 500, including the key fob. Disconnect the battery of 12 volts for about 15 minutes by removing the negative cable first then the positive cable. Reconnect the battery. This will eliminate any remaining electrical charge and restart the car's computers. This could help get your key fob working again. If the issue persists you should speak with a certified technician. They'll be able to identify the root cause of your problems.

Homepage: https://www.thekeylab.co.uk/fiat-car-keys/