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Reasons Your replacement fiat key 500 Key Fob Won't Work

A key fob with the fiat 500 number is a convenient way to unlock the doors and start the car. There are a variety of reasons why the fob won't work. This could be due to a dead battery, water damage, problems with receiver modules, as well as interference.

This listing is for an NEW replacement Fiat 500 key Fob Fiat Flip Key Remote that appears similar to the Ilco brand. It needs to be professionally programmed (click here to search for local automotive locksmiths). It comes with lock, unlock and trunk buttons.

Dead Coin Battery

The most frequent reason that your 500 key fob will not function is due to a dead battery. Modern key fobs have a very limited range of operation, and should be within just a few feet of the car to operate. If you're far from your vehicle and you press the keyfob button it will not respond, and replacement Fiat 500 key fob display the message "Key Fob Not Detected".

If this occurs then replace the battery for your coin-cell (Part Number CR2032) by a new one of a reliable brand, like Panasonic Duracell or Energizer. They are available at your local hardware store or on the internet.

You can test the battery of your coin-cell by pressing the buttons while you are standing close to your fiat 500 new key 500. The parking lights should blink and the key fob should operate the lock and unlock switches.

If the key fob won't function after replacing the battery, it may have water damage that prevents it from connecting to the receiver module inside your car. Water damage can occur in a variety of ways, ranging from a light splash to submerging the fob into salt water at the beach. If you suspect that your fob was exposed to water, try putting it in a dry rice bag to pull the moisture back out. If this doesn't work, you will have to get your fob replaced by an auto locksmith or a dealer.

Water Damage

While the fob comes with rubber seals that keep water out of the chip's electronic circuit it, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to become shorted and eventually fail. It's not a good idea to soak the fob in water but don't give up even if you accidentally drop the fob in water, or fail to remove it from your pants pocket.

Take the battery off first. Clean the electronic chip with isopropyl alcohol or a similar product and dry it completely before replacing the battery. Check the fob to see if it is working. If the fob doesn't work, it may need to be reprogrammed. This is usually handled by an auto locksmith or dealer.

If your key is old and is not programmed to work with your vehicle You will need to replace it completely. This is a simple procedure that can be carried out by a professional locksmith for automotive use. The locksmith must cut the key to match the ignition in your vehicle. They will also need to reprogram the fob for your vehicle's system. It's a simple and inexpensive process that is usually completed in the same day.

Receiver Module Issues

One of the main reasons why your 500 key fob might stop working is that it's simply out of range. The remote has a maximum range of 30 feet. So when you're too far from your car it will not respond to your commands. It can be solved by moving it closer to your vehicle until it begins responding.

If you've replaced the coin battery (commonly called a "button" or "watch") and your fob still won't work it could be due to an internal circuit board problem. Reprogramming the fob typically resolves this problem. You can find the procedure for the majority of vehicles on YouTube or in the owner's manual.

It may be necessary to replace the metal clips that hold the coin batteries in the correct position. If they become loose, it could prevent your coin battery from being properly seated, causing your remote to malfunction.

In rare instances the fob might become disconnected from your vehicle due to software problems or hardware issues. This could be a huge headache, but you can often fix this by visiting an auto locksmith to have them reprogram your fob. In some instances it is possible that the software will require reinstallation to your body control modules.

Interference

In addition to a dead coin battery The key fob might not be able to receive or transmit signals due to interference. This can happen when the key fob is located near an electronic radio transmitter (cell phones, radar detectors) or another source of electromagnetic radiation. Other reasons the key fob could not function may be a lack of connection to the buttons or damage to the internal chip, or water damage.

If your key fob suddenly stopped working, or if you have tried everything at home to fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, you could have a defective receiver module on your 500. The receiver module, which is located under the dashboard, is able to pick up radio frequency signals from your key fob. It converts the signals into electronic commands, which are then translated by the vehicle.

Luckily, there is an easy method of resetting every single system on board in your 500 and include the key fob. Disconnect the battery 12 volt for about 15 minutes by removing the negative cable first then the positive cable. Then, reconnect the battery. This will get rid of any remaining electrical charge and restart the car's computers, which could help get your key fob working again. If the problem persists it is recommended that you consult an expert certified technician. They will be able to determine the exact cause of any issues.