Reasons Your fiat tipo key 500 Key Fob Won’t Work
A key fob from Fiat 500 is a handy way to open the doors and begin the car. However, there are many reasons why the fob may stop working. It could be due to a dead battery damage to the receiver module, issues, and interfering.
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Dead Coin Battery
The most common reason the 500 key fob won’t function is a dead battery. Modern key fobs have a limited operating range and should 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 be able to respond, and will display a “Key Fob Not Detected” message in the instrument cluster.
If this happens, replace the coin cell battery (Part number CR2032) with a new one from a reputable brand like Panasonic, Duracell, or Energizer. You can typically find them at your local hardware store or on the internet.
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 should flash its parking lights, and the key fob will operate the lock and unlock buttons.
If the key fob won’t work after replacing the battery, it could have water damage that prevents it from communicating with the receiver module in your car. Water damage can happen in a variety of ways, from the slightest splash to submerging the fob in salt water at the beach. If you suspect that your fob has been exposed to water, place it in a rice bag to draw out the moisture. If this doesn’t work the fob might require reprogramming by an experienced auto locksmith or the dealer.
Water Damage
The fob does have rubber seals to keep water from the electronic chip inside it, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short and then fail. It’s not the best idea to let the fob get wet, but don’t give it up when you accidentally drop it locked keys in fiat 500 water, or fail to take it out of your pocket.
Remove the battery first. Before replacing the battery clean the electronic chip with isopropyl or a similar product. Then check the fob to see if it works. If the fob doesn’t work, it might need to be changed. This is usually handled by an auto locksmith or dealer.
If the key is older and was not programmed to your vehicle, it will likely need to be replaced completely. This is an easy process that can be completed by a professional automotive locksmith. The locksmith will require the key to be cut to match your vehicle’s ignition. The locksmith will also have to reprogram the fob into the car’s system. This is a cheap and fast process that can be completed within the same day.
Receiver Module Issues
One of the main reasons your 500 key fob might stop functioning is because it’s out of range. The remote typically has an operating range of 30 feet or less and if it’s far from your vehicle, it won’t respond to your commands. It can be solved by moving it closer to your vehicle until it starts responding.
If your fob doesn’t work after you replace the coin battery, also known as a “button”, “watch” or “button” it could be a problem with the internal circuit board. Reprogramming the fob usually resolves the issue. The instructions are available for most vehicles on YouTube or in the owner’s guide.
It is sometimes necessary to replace the clips made of metal that hold the coin batteries in place. If they become loose, it can prevent your coin battery from sitting properly and cause your remote to malfunction.
In rare instances, the fob might be out of the vehicle’s sync because of software or hardware 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 on your body control module as well.
Interference
In addition to a dead coin battery The key fob might not be receiving or transmitting signals due to interference. This could happen when the keyfob is located in close proximity to a radio transmitter like a cellphone or radar detector. The key fob might not work because of a problem with the buttons or water damage, or damage to the internal chips.
If your key fob suddenly stopped working, or if you have tried everything at home to resolve it (e.g. battery replacement, reprogramming and using the spare key for fiat 500 key fob, you may have a malfunctioning receiver module on your 500. The receiver module is situated under the dash, and it picks up the radio frequency signals from the key fob. Then, it converts them into electronic commands that the vehicle interprets.
Luckily, there is an easy method of resetting all on-board systems in your 500, including the key fob. Disconnect the battery of 12 volts for about 15 minutes, by taking off the negative cable first then the positive cable. Then, reconnect the battery. This will erase any remaining electricity, and restart the computer of your car. This will help you get your key fob working again. If the problem persists you should seek out an expert technician. They’ll be able to identify the root cause of your issues.
