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Reasons Your Fiat 500 Key Fob Won't Work

A key fob with the fiat 500 number is a convenient way to open the doors and begin the car. There are a variety of reasons why the fob could stop working. This could be due to a dead battery or water damage, problems with receiver modules, as well as interference.

This listing is for an NEW replacement Fiat Flip Key Remote that looks like the Ilco brand. It needs to be professionally programmed (click here to find local locksmiths for your vehicle). It includes trunk, lock and unlock buttons.

Dead Coin Battery

A dead battery is probably the most common reason for your 500 key fob that isn't working. Modern key fobs come with a restricted operating range, and must be within some feet of the vehicle to operate. If you're far away from your vehicle when you press the key fob button the car will not respond, and will display an "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery on your coin cell (Part number CR2032) with a new one from a reputable brand such as Panasonic, Duracell, or Energizer. They are typically available at your local hardware store, or online.

You can test the battery in the coin-cell by pressing the buttons while you're standing close to your Fiat 500. The car should flash its parking lights, and the key fob should operate the lock and unlock switches.

If the fob's key doesn't function after replacing the battery, it might be damaged by water, which prevents it from communicating with the receiver module inside your vehicle. Water damage can happen in many ways, such as simply splashing or submerging your key fob in saltwater at the beach. If you believe your fob was exposed to water, you can place it in a rice bag to draw out the moisture. If this doesn't work, your fob is likely to need to be reprogrammed by an experienced auto locksmith or dealer.

Water Damage

The fob does have rubber seals to keep water out of the electronic chip inside the device, submerging it into the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to become shorted and eventually die. The fob getting wet is not an ideal idea but if you accidentally drop it into an empty cup of water, or fail to take it out of your pocket before you run the washing machine and you don't have a chance, don't give in.

Take the battery off first. Clean the electronic chip using isopropyl alcohol or another similar product and then dry it completely before replacing the battery. Next test the fob to verify if it is working. If the fob doesn't work, it may need to be reprogrammed. This is usually done by an auto locksmith or dealer.

If your key is a bit older and not programmed for your car You will need to replace it completely. A professional automotive locksmith can do this job. The locksmith will require the key to be cut to match your car's ignition. The locksmith will also need to reprogram your fob into the car's system. This is a quick and affordable process that can be completed within the same day.

Receiver Module Issues

The 500 key fob could not work because it's out of range. The remote usually has an operating range of 30 feet or less, and if it's too far from your car, it will not respond to your commands. You can easily fix this by moving the remote closer to your car until it responds.

If your fob won't work after you replace the battery in the coin, also called a "button", "watch" or "button" It could be due to a problem with the circuit board inside. Reprogramming your fob can resolve the issue. You can find the steps for most vehicles on YouTube or in the owner's manual.

It could be necessary to replace the clips made of metal that hold the coin batteries in their place. If they loose tension, it could hinder the coin battery from sitting properly and can cause your remote to malfunction.

In rare instances the fob could be disconnected from your vehicle due to software issues or hardware issues. This could cause a significant trouble, but you could usually resolve this issue by visiting a local dealer or auto locksmith to have them reprogram your fob. In certain instances it may be necessary to reinstall the software on your body control module, as well.

Interference

Interference can also cause the key fob to be unable to receive or transmit signals. This can happen when the key fob is in proximity to an electronic radio transmitter (cell phones, radar detectors) or another source of electromagnetic radiation. The key fob may not function because of a weak connection to the buttons or water damage, or damage to the internal chips.

If replacement fiat 500 key fob has stopped working one day suddenly or even after trying everything you can at home to solve it e.g. battery replacement, reprogramming and using the spare key fob, you may have a damaged receiver module on your 500. The receiver module, located beneath the dashboard, detects radio frequency signals from your key fob. It then converts them into electronic commands that the vehicle interprets.

Luckily, there is an easy way to reset every single system on board in your 500 device, 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 remove any remaining electrical charge and restart the car's computers, which could help get your key fob working again. If the issue persists it is recommended that you consult a certified technician. They will be able diagnose the exact cause of any problems.

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Pub: 26 Apr 2024 02:40 UTC
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