Reasons Your fiat 500 keys 500 Key Fob Won't Work

A key fob from Fiat 500 Abarth Key 500 is a great way to unlock the doors and start the car. There are a myriad of reasons the fob could stop working. This could be due to a dead coin-battery water damage, issues with the receiver module, and interference.

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Dead Coin Battery

The most frequent reason why your 500 key fob won't function is an inactive battery. Modern key fobs have an operating range that is limited and must be within just a few inches of the vehicle to work. If you are far from your car and press the keyfob button, it will not respond, and display the message "Key Fob Not Detected".

If this happens, replace the coin-cell battery (Part Number CR2032) by a brand new one of a reputable brand such as Panasonic Duracell or Energizer. You can typically find them at your local hardware store or online.

You can test the battery on your coin-cell by pressing the buttons while standing near your fiat 500 car keys 500. The car should flash its parking lights, and the key fob will operate the lock and unlock switches.

If your key fob still doesn't work even after replacing the battery, there could be water damage that prevents it from interacting with the module in your vehicle. Water damage can occur in a variety of ways, ranging from an accidental splash to submerging your fob in salt water at the beach. If you think your fob was exposed to water, put 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 dealer.

Water Damage

Water damage can occur if you immerse the fob in the ocean, or wash it in a washer. Saltwater is particularly dangerous to the fob's circuit board and can cause it to short out and eventually die. It's not a good thing to get the fob wet but don't give up if you accidentally drop it in water, or fail to remove it from your pocket.

First remove the battery from the fob. Clean the electronic chip with isopropyl alcohol or another similar product and dry it thoroughly before replacing the battery. Next check the fob to see if it works. If the key isn't working then it might need to be reset. This is typically done by a professional or dealer auto locksmith.

If the key is more recent and has never been programmed to your vehicle It will most likely need to be replaced completely. This is a straightforward process which can be accomplished by a professional automotive locksmith. The locksmith will need the key to be cut to match your car's ignition. The locksmith will also need to program your fob into the car's system. This is a low-cost and quick procedure that can be completed in the same day.

Receiver Module Issues

Your 500 key fob may not function because it's out of range. The remote has a maximum range of 30 feet, which means in the event that you are far away from your vehicle it won't respond to your commands. It's easy to fix this by moving the remote closer to your car until it responds.

If you've replaced your coin battery (commonly known as a "button" or "watch") and the fob isn't working It could be because of an internal circuit board issue. Reprogramming your fob can resolve 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 coin battery. If they loose tension, it can stop your coin battery from being properly seated and cause your remote to malfunction.

In rare cases the fob may be out of sync with your vehicle because of hardware or software issues. This can cause a major headache, but you can often fix this by visiting a local dealer or auto locksmith to reprogram your fob for you. In some instances it may be necessary to reinstall the software on your body control module too.

Interference

In addition to a dead battery on a coin The key fob might not be receiving or transmitting the signal due to interference. This is possible when the key fob is located near an electronic radio transmitter (cell phones and radar detectors) or another source of electromagnetic radiation. The key fob may not work due to a bad connection with the buttons, water damage or damage to the internal chips.

If your key fob suddenly stopped working, or if you've tried everything at home to solve the issue (e.g. battery replacement, reprogramming and using the spare key fob, you might have a defective receiver module on your 500. The receiver module, which is located beneath the dashboard, receives radio frequency signals from your key fob. It then converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy method to reset all of the on-board systems in your 500 keys, including the key fob. Disconnect the battery 12 volt for approximately 15 minutes by removing the negative cable first then the positive cable. Reconnect the battery. This will erase any remaining electrical charge, and then restart the computer of your car. This could help you get your key fob to function again. If the issue continues, you should consult an experienced technician. They'll be able to diagnose the exact cause of your issues.