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Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a great way to open the doors and begin the car. However, there are many reasons why the fob won't be working. This could be due to a dead battery or water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

The most frequent reason why the 500 key fob won't function is the battery is dead. Modern key fobs operate with a limited range of operation, and must be within just a few feet of the vehicle to function. If you're far from your vehicle, and you press the key fob button, the car won't respond, and will display the "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 brand new one of a reliable brand, such as Panasonic Duracell or Energizer. You can find them in your local hardware store, or on the internet.

After you've changed the battery on the coin cell You can test it by standing close to your Fiat 500 and pressing the buttons. The parking lights should light up and the key fob should operate the lock and unlock switch.

If your key fob still isn't working after replacing the battery, there may be water damage that hinders it from connecting to the module inside your vehicle. Water damage can happen in a variety of ways, such as an easy splash or submerging your key fob in saltwater at the beach. If you believe 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 your fob replaced by an auto locksmith or dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob in the ocean or wash it in a machine. Saltwater can cause the circuit board to short, and eventually fail. In the event that you let your fob get wet, it's not an ideal idea however, if you drop it into the water in a cup or do not remember to take it out of your pants pocket before running the washing machine, don't give up hope.

First, remove the battery from the fob. Before replacing the battery clean the electronic chip with isopropyl or similar products. Test the  fob  afterward to see if it is functioning. If the key still doesn't function, it may need to be reset. This is typically handled by a professional or dealer auto locksmith.

If your key is older and has not been programmed for your car it is necessary to replace it completely. This is a simple process that can be completed by a professional automotive locksmith. The locksmith will need the key cut to match your car's ignition. The locksmith will also have to program your fob into the vehicle's system. It's a simple and cost-effective process that can usually be completed within the same day.

Receiver Module Issues

One of the most common reasons why your 500 key fob might stop working is that it's simply out of range. The remote has a range of 30 feet, so when you're too far from your vehicle it will not respond to your commands. You can easily solve this issue by moving the remote closer to your car until it responds.

If your fob doesn't work after replacing the battery for the coin, also called a "button", "watch" or "button", it could be a problem with the circuit board inside. In the majority of cases, reprogramming your fob will fix the problem. You can find the procedure for most vehicles on YouTube or in the owner's manual.

You may have to replace the metal retaining clips that hold the battery of your coin in place. If they lose tension, it can prevent your coin battery from being properly seated and cause your remote to malfunction.

In rare cases the fob may be out of connection with your vehicle as a result of hardware or software issues. This could be a huge trouble, but you could usually fix it by visiting an auto locksmith to reprogram your fob. In some cases they may have to reinstall the program in your body control module, as well.

Interference

Interference can also cause the key fob to be unable to receive or transmit a signal. This can occur when the keyfob's location is in close proximity to a radio transmitter like a cellphone or radar detector. Other reasons the key fob might not work may be a lack of connection to the buttons and internal chip, or water damage.

If the key fob been unable to function for a while without notice, or after trying everything you can at home to fix it e.g. You may have a faulty 500 receiver module after you've tried replacing the battery, reprogramming it, or using an alternative key fob. The receiver module, located under the dashboard, picks up radio frequency signals from your key fob. It then converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy method of resetting every single system on board in your 500 device, including the key fob. Disconnect the battery for 15 minutes by taking off first the negative cable and then the positive cable. Then, reconnect the battery. This will erase any remaining electric current, and also restart the computer in your car. This will help you get your key fob working again. If the issue persists you should seek out an experienced technician. They can determine the exact cause of your issue.