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Reasons Your Fiat 500 Key Fob Won't Work
A key fob for the Fiat 500 allows you to easily open doors and start your car. However, there are a variety of reasons the fob could stop working. This could be due to a dead coin battery or damage to the receiver module, issues, and interference.
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Dead Coin Battery
A dead battery is the most common cause of your 500 key fob that isn't working. Modern key fobs offer only a limited range of operation and must be within just a few inches of the vehicle to function. If you are far from your vehicle and you press the key fob button, the car will not respond, and will display the "Key Fob Not Detected" message in the instrument cluster.
If this happens, replace the coin-cell battery (Part Number CR2032) by a new one of a trusted brand such as Panasonic Duracell or Energizer. You can typically find them 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 operate the lock and unlock switches.
If your key fob isn't working after replacing the battery, it could be water damage that has prevented it from communicating with the module in your vehicle. Water damage can happen in a variety of ways, ranging from the slightest splash to submerging your fob in salt water at the beach. If you suspect that your fob has been exposed to water, you can place it in a bag of rice to draw out the moisture. If this doesn't work, you will have to get your fob replaced by an auto locksmith or a dealer.
Water Damage
Water damage can happen if you submerge the fob in the ocean, or wash it in a machine. Saltwater is particularly dangerous to the fob's circuit board and can cause it to short out and eventually end up dying. If you get the fob wet, it's not an ideal idea but if you accidentally drop it into an empty cup of water, or forget to take it out of your pants pocket prior to running the washing machine Don't give up hope.
First remove the battery from the fob. Clean the electronic chip using isopropyl or a similar product and dry it thoroughly before replacing the battery. Then, test the fob to test if it works. If the fob doesn't work, it may need to be changed. fiat key fob replacement is usually done by a professional or dealer auto locksmith.
If your key is older and has not been programmed for your vehicle then you'll need to replace it completely. This is a simple procedure that can be handled by a professional locksmith for automotive use. The locksmith needs to cut the key to match the ignition on your vehicle. They'll also need to reprogram the fob to your car's system. This is a cheap and quick process that can be completed within the same day.
Receiver Module Issues
One of the main reasons why your 500 key fob may stop working is because it's out of range. The remote usually has an operating range of 30 feet or less and if it's far from your car, it won't respond to your commands. You can remedy this by moving your remote closer to your vehicle until it responds.
If your fob does not work after replacing the coin battery, also called a "button", "watch" or "button" or "button", it could be due to a problem with the circuit board inside. In most cases, reprogramming the fob will solve the problem. The instructions are available for the majority of vehicles on YouTube or in the owner's guide.
You may need to replace the metal retaining clips that hold the coin battery. If they lose tension it can stop your coin battery from being properly seated, causing your remote to malfunction.
In rare instances, the fob may be out of the vehicle's sync because of hardware or software problems. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some instances they may have to reinstall the software in your body control module, too.
Interference
In addition to a dead coin battery The key fob might not be able to transmit or receive an signal due to interference. This can occur when the keyfob is in close proximity to a radio transmitter like a cellphone or radar detector. Other reasons why the key fob may not function include a weak connection to the buttons and internal chip or water damage.
If your key fob suddenly stopped working, or if you have tried everything at home to resolve it (e.g. You could have a malfunctioning 500 receiver module if you've tried replacing the battery, reprogramming, or using an alternative key fob. The receiver module is located under the dash and receives the radio frequency signals from the key fob. It transforms the signals into electronic commands that are then translated by the vehicle.
Fortunately, there's an easy method to reset all of the on-board systems in your 500, including the key fob. Disconnect the 12 volt battery for about 15 minutes by removing the negative cable and then the positive cable. Reconnect the battery. This will get rid of any residual electricity and restart the car's computer system, which could help the key fob to function again. If the problem persists you should speak with an expert technician. They can identify the exact cause of problems.