Reasons Your fiat punto key fob 500 Key Fob Won't Work

A key fob with the fiat 500 number is a great way to open the doors and start the car. However, there are many reasons why the key fob might stop working. This includes a dead coin-battery and water damage, as well as 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 have a very limited range of operation, and should be within a few feet of the car to operate. If you are not within your vehicle and you push the keyfob button it will not respond, and display the message "Key Fob Not Detected".

If this occurs then replace the battery for your coin-cell (Part Number CR2032) by a brand new one of a reliable brand, such as Panasonic Duracell or Energizer. They can be found in your local hardware store, or online.

After you've replaced the battery in the coin cell you can test it by standing next to your Fiat 500 and pressing the buttons. The car will flash its parking lights, and the key fob should work the lock and unlock switches.

If your key fob still isn't working even after replacing the battery, there may be water damage that hinders it from interacting with the module inside your vehicle. Water damage can occur in many ways, Fiat Bravo key such as simply splashing or submerging the key fob saltwater at the beach. If you suspect that your fob was exposed to water, put it in a bag of rice to draw out the moisture. If this isn't working, you'll need to have the fob reset by an auto locksmith or dealer.

Water Damage

Water damage can occur if you submerge the fob in the ocean, or wash it in a machine. Saltwater can cause the circuit board to short and eventually end up dying. It's not a good idea to soak the fob in water but don't give up if you accidentally drop it in the water or don't remove it from your pants pocket.

First take the battery off the fob. Before replacing the battery clean the electronic chip with isopropyl or a similar product. Check the fob again to verify if it's functioning. If the key still doesn't function, it may need to be reset. This is usually handled by a dealer or professional auto locksmith.

If the key is older and has never been programmed to your car it is likely to need to be replaced completely. This is a simple procedure that can be completed by a professional automotive locksmith. The locksmith will need the key to be cut to match the car's ignition. They'll also need to reprogram the fob for your car's system. This is a cost-effective and quick process that can be completed on the same day.

Receiver Module Issues

The 500 key fob could be inoperable because it's out of range. The remote usually has an area of 30 feet or less, and if it's too far away from your car it will not respond to your commands. It is possible to solve this issue by moving the remote closer to your car until it responds.

If your fob does not work after you replace the battery in the coin, also called a "button", "watch" or "button" it could be due to a problem with the circuit board inside. Reprogramming the fob is usually the solution to this issue. The instructions are available for most vehicles on YouTube or in the owner's guide.

You may need to replace the metal clips that hold the battery of your coin in place. If they loose tension, it could prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare cases the fob could be disconnected from your vehicle due to software or hardware issues. You can fix this problem by visiting your local auto-locksmith or dealer to reprogram your key fob. In certain instances they might need to reinstall the software in your body control module too.

Interference

Interference can also cause the key fob not to receive or transmit a signal. This could occur if the keyfob is in close proximity to a radio transmitter such as a cell phone or radar detector. The key fob could not work due to a poor connection to the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or you've tried everything at home to resolve it (e.g. replacing batteries, reprogramming or using the spare key fob, you might have a malfunctioning receiver module on your 500. The receiver module, located under the dashboard, detects radio frequency signals from your key fob. It converts the signals into electronic commands that are then processed by the vehicle.

There's a quick and easy way to reset the 500's in-board system including the keyfob. Disconnect the 12 volt battery for about 15 minutes, by removing the negative cable first then the positive cable. Then reconnect the battery. This will clear any residual electricity, and restart the computer of your car. This can help get your key fob working again. If the issue continues, you should seek out an expert technician. They can identify the root cause of any issues.