Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a convenient way to open the doors and begin the car. However, there are numerous reasons why the fob may stop working. This could be due to a dead coin battery, damaged receiver module, water damage issues, and interfering.

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Dead Coin Battery

The most frequent reason why your 500 key fob won't work is a dead battery. Modern key fobs have a very limited operating range and must be within some feet of the vehicle to operate. If you're not close to your vehicle, and you press the key fob button, the car won't respond and will display an "Key Fob Not Detected" message in the instrument cluster.

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

After you've replaced the battery in the coin cell It is possible to test it by standing close to your fiat ducato remote key replacement 500 and pressing the buttons. The car will blink its parking lights, and the key fob will operate the lock and unlock switches.

If your key fob still isn't working after replacing the battery, there might be water damage that prevents it from connecting to the module in your vehicle. Water damage can occur in a number of ways, from small splashes to submerging the fob salt water at the beach. If you suspect that your fob has been exposed to water, you can place it in a rice bag to draw out the moisture. If this doesn't work, you will need to have the fob reset by an auto locksmith or a dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob into the ocean, or wash it in a washer. Saltwater can cause the circuit board to short, and eventually die. In the event that you let your fob get wet, it's not an ideal idea but if you drop it into a glass of water or don't remember to remove it from your pocket before you run the washer do not give up hope.

First, remove the battery from the fob. Clean the electronic chip using isopropyl alcohol or a similar product and then dry it thoroughly before replacing the battery. Next, test the fob to test if it works. If the key doesn't function, it may need to be changed. This is typically handled by a dealer or professional auto locksmith.

If the key is older and was not programmed to your car It is likely that it needs to be replaced completely. This is a straightforward process that can be handled by a professional locksmith for automotive use. The locksmith will have to cut the key to match the ignition on your vehicle. They'll also need to reprogram the fob in your vehicle's system. This is a cheap and fast process that can be completed on the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob won't be working is because it's out of range. The remote has a range of 30 feet. Therefore, in the event that you are far from your car it won't be able to respond to your commands. You can easily solve this issue by moving the remote closer to your car until it responds.

If you've replaced the coin battery (commonly known as a "button" or "watch") and your fob still won't work it could be due to an internal circuit board issue. In the majority of cases, reprogramming your fob will resolve this problem. You can find instructions on how to do this for most vehicles by searching YouTube or reading the owner's manual.

You may have to replace the metal clips that hold the coin battery. If they lose tension, it can stop your coin battery from being properly seated 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. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances it may be necessary to reinstall the software on your body control module too.

Interference

Interference can also cause the key fob to be unable to receive or transmit a signal. This could occur if the key fob is in proximity to an electronic radio transmitter (cell phones or radar detectors) or any other source of electromagnetic radiation. Other reasons why the key fob could not function may be a lack of connection to the buttons and internal chip, or water damage.

If your key fob suddenly stopped working, or if you've tried everything at home to solve the issue (e.g. You could have a malfunctioning 500 receiver module if you've tried replacing the battery, reprogramming or using a spare key fob. The receiver module is located under the dash and is able to pick up the radio frequency signals from the key fob. It converts the signals into electronic commands, which are then read by the vehicle.

There is a straightforward method to reset the 500's internal system, including the keyfob. Disconnect the battery 12 volt for approximately 15 minutes by taking off the negative cable first then the positive cable. Then reconnect the battery. This will clear any residual electricity, and allow you to restart the car's computer. This could help you get your key fob to work again. If the issue persists, you should consult a certified technician. They'll be able identify the root cause of your issue.