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Reasons Your Fiat 500 Key Fob Won't Work

A key fob from fiat multipla key 500 is a convenient 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 or damaged receiver module, water damage issues, or interference.

This listing is for a NEW replacement Fiat 500 Electric Key Flip Key Remote that appears similar to the Ilco brand. It must be professionally programmed (click here to find local locksmiths for automotive locksmiths). It includes lock, unlock, and trunk buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob will not function is an inactive battery. Modern key fobs only have a limited range of operation and must be within a few inches of the vehicle to work. If you are far from your vehicle when 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 happens then replace the battery for your coin-cell (Part Number CR2032) by a fresh one from a reputable brand such as Panasonic Duracell or Energizer. They are usually available at your local hardware store or on the internet.

You can test the coin-cell battery by pressing the buttons while standing close to your fiat punto locked keys in car 500. The car should blink its parking lights, and the key fob should work the lock and unlock switches.

If the key fob won't work after replacing the battery, it may be damaged by water, which prevents it from communicating with the receiver module in your vehicle. Water damage can occur in a variety of ways, ranging from small splashes to submerging your fob in salt water at the beach. If you suspect that your fob was exposed to water, place it in a bag of rice to draw out the moisture. If this isn't working, you'll need to have your fob changed by an auto locksmith or a dealer.

Water Damage

While the fob has some rubber seals to keep water out of the electronic chip inside, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can be particularly harmful to the circuit board of the fob which causes it to short out and Fiat 500 Electric Key eventually die. It's not a good idea to soak the fob in water, but don't give it up if you accidentally drop it in the water or don't take it out of your pocket.

Remove the battery first. Before replacing the battery, clean the electronic chip using isopropyl or another similar product. Next test the fob to see if it works. If the fob doesn't work then it might need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If the key is more recent and has not been programmed to your car It is likely that it needs to be replaced completely. A professional automotive locksmith can complete this simple process. The locksmith will need the key to be cut to match your vehicle's ignition. They will also need to reprogram the fob for the system of your car. This is an affordable and quick procedure that can be completed on the same day.

Receiver Module Issues

One of the most common reasons your 500 key fob could stop functioning is because it's out of range. The remote has a maximum range of 30 feet. Therefore, when you're too far from your car, it won't respond to your commands. This can easily be resolved by moving it closer to your vehicle until it starts responding.

If your fob does not work after you replace the battery in the coin, also known as a "button", "watch" or "button", it may be due to a malfunction on the circuit board inside. In most cases, reprogramming the 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 clips that keep the coin battery. If they lose tension it can stop your coin battery from being properly seated and cause your remote to malfunction.

In rare instances, the fob may become disconnected from your vehicle due to software issues or hardware issues. It is possible to fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances they might need to reinstall the program in your body control module as well.

Interference

In addition to a dead coin battery the key fob could not be receiving or transmitting a signal due to interference. This could happen when the keyfob is in close proximity to a radio transmitter such as a cell phone or radar detector. Other reasons why the key fob could not function include a weak connection to the buttons and internal chip, or water damage.

If the key fob has been unable to function for a while in the middle of the night or even after trying every option at home to fix it e.g. You might have a damaged 500 receiver module after you've tried replacing the battery, reprogramming, and using a spare key fob. The receiver module is located under the dash and is able to pick up the radio frequency signals from the key fob. It converts the signals into electronic commands which are then interpreted by the vehicle.

There's a simple method to reset the 500's internal system including the keyfob. Disconnect the battery for 15 minutes by taking off first the negative cable, then the positive cable. Reconnect the battery. This will remove any remaining electricity and restart the car's computers. This can help you get your key fob working again. If the problem persists you should consult an expert technician. They will be able to determine the exact cause of your issue.