Reasons Your Fiat 500 Key Fob Won't Work
A key fob from Fiat 500 is a handy way to open the doors and start the car. However, there are numerous reasons why the fob may stop working. This could be due to a dead battery water damage, problems with the receiver modules, and interference.
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Dead Coin Battery
The most common reason the 500 key fob won't work is an inactive battery. Modern key fobs have a very limited operating range and should be within only a few feet from the vehicle to function. If you're far from your car and hit the keyfob, it will not respond and display the message "Key Fob Not Detected".
If this happens, replace the battery of your coin cell (Part number CR2032) by a new one from a reliable brand like Panasonic, Duracell, or Energizer. You can typically find them at your local hardware store or on the internet.
After you've changed the battery on the coin cell It is possible to test it by standing next to your Fiat 500 and pressing the buttons. The parking lights should blink and the key fob will operate the lock and unlock switch.
If the key fob won't function after replacing the battery, it could be damaged by water, which prevents it from communicating with the receiver module in your vehicle. Water damage can occur in many ways, such as simply splashing or submerging the key fob saltwater at the beach. If you believe your fob was exposed to water, place it in a bag of rice to draw out the moisture. If this doesn't work, you will need to have your fob reprogrammed either by an auto locksmith or dealer.
Water Damage
While the fob has some rubber seals that keep water from the electronic chip inside, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater is especially dangerous to the fob's circuit board, causing it to short out and eventually die. In the event that you let your fob get wet, it's not an ideal choice but if you accidentally drop it in an empty cup of water, or do not remember to take it out of your pants pocket before running the washer and you don't have a chance, don't give in.
Take the battery off first. Before replacing the battery clean the electronic chip with isopropyl or a similar product. Then try the fob and check if it functions. If the key doesn't work, it might need to be reset. This is typically handled by a dealer or professional auto locksmith.
If the key is more recent and has never been programmed to your vehicle it is likely to need to be replaced completely. A professional locksmith in the automotive industry will be able to complete this process. The locksmith will need to cut the key to match the ignition on your vehicle. The locksmith also needs to reprogram your fob into the car's system. This is a low-cost and quick process that could be completed in the same day.
Receiver Module Issues
One of the simplest reasons your 500 key fob won't be functioning is that it's out of range. The remote typically has an area of 30 feet or less and if it's far from your car, it won't respond to your commands. It's easy to remedy this by moving your remote closer to your car until it responds.
If you've replaced the battery in your coin (commonly called"button" or "button" or "watch") and your fob still won't work it could be due to an internal circuit board problem. Reprogramming the fob usually resolves the issue. You can find directions on how to do this for the majority of automobiles by searching YouTube or consulting the owner's manual.
It could be necessary to replace the clips made of metal that hold the coin batteries in the correct position. If they loose tension, it can prevent the battery from being seated properly, and this will cause your remote to malfunction.
In rare cases the fob might be out of connection with your vehicle as a result of hardware or software problems. You can fix this problem by visiting your local dealer or auto-locksmith to reprogram your key fob. In fiat 500 keys is possible that the software will require reinstallation into your body control modules.
Interference
In addition to a dead coin battery, the key fob may not be receiving or transmitting an signal due to interference. This could occur if the key fob is near radio transmitters (cell phones, radar detectors) or another source of electromagnetic radiation. Other reasons why the key fob may not function could be due to a weak connection to the buttons, damage to the internal chip, or water damage.
If your key fob suddenly stopped working, or you've tried everything at home to fix it (e.g. You could have a malfunctioning 500 receiver module in the event that you've tried replacing the battery, reprogramming, and using a spare key fob. The receiver module, which is located beneath the dashboard, picks up radio frequency signals from your key fob. It converts the signals into electronic commands which are then interpreted by the vehicle.
There's a simple method to reset the 500's internal system, including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable. Then reconnect the battery. This will erase any remaining electric current, and also restart the computer in your car. This can help you get your key fob to function again. If the issue persists, you should seek out an expert technician. They can identify the root cause of any issues.