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Reasons Your fiat punto keys 500 Key Fob Won't Work

A key fob for the Fiat 500 allows you to easily open doors and start your car. However, there are a variety of reasons why the fob may stop functioning. This includes a dead battery and water damage, as well as problems with receiver modules, as well as interference.

This listing is for a NEW replacement fiat 500 key cutting Flip Key Remote - like the Ilco brand that needs to be programmed professionally by a local automotive locksmith (click here for Locksmith Search). This remote includes lock, unlock and trunk buttons.

Dead Coin Battery

The most common reason the 500 key fob won't function is an inactive battery. Modern key fobs have a very restricted operating range, and must be within a few feet of the vehicle to function. If you are further away from your car and press the keyfob button, it will not respond and display the message "Key Fob Not Detected".

If this happens you need to replace the battery of your coin-cell (Part Number CR2032) by a brand new one from a reputable brand like Panasonic Duracell or Energizer. You can find them at your local hardware store, or on the internet.

After you've replaced the coin cell battery, you can test it by standing in front of your Fiat 500 and pressing the buttons. The parking lights will flash and the key fob will operate the lock and unlock switches.

If your key fob isn't working even after replacing the battery, it might be water damage that has prevented it from connecting to the module in your vehicle. Water damage can occur in a number of ways, from the slightest splash to submerging your fob in salt water at the beach. If you suspect that your fob has been exposed to water, put it in a dry rice bag to pull the moisture back out. If this isn't working, you'll need to have the fob replaced by an auto locksmith or a dealer.

Water Damage

Although the fob is equipped with rubber seals that keep water from the electronic chip inside, submerging it in the ocean or washing it in a machine could cause water damage. Saltwater poses a particular risk to the circuit board of the fob that can cause it to short out and eventually die. It's not the best idea to let the fob get wet however, don't give it up in the event that you accidentally drop it in water or fail to take it out of your pants pocket.

First take the battery off the fob. Before replacing the battery, clean the electronic chip using isopropyl, or a similar product. Check the fob again to see if it is working. If the key doesn't function, it may need to be reprogrammed. This is typically done by a dealer or professional auto locksmith.

If your key is old and not programmed for your car, 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 will need the key to be cut to match your vehicle's ignition. The locksmith will also have to reprogram the fob into the vehicle's system. This is a quick and cost-effective procedure which can be completed in the same day.

Receiver Module Issues

The 500 key fob you have may not function because it's out of range. The remote usually has a range of 30 feet or less, and if it's too far from your vehicle, it won't respond to your commands. It is possible to remedy this by moving your remote closer to your car until it responds.

If you've replaced the coin battery (commonly called"button" or "button" or "watch") and the fob won't work it could be due to an internal circuit board issue. Reprogramming your fob can resolve this issue. You can find instructions on How to Get a new fiat 500 key to do this for all vehicles by searching YouTube or reading the owner's manual.

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

In rare cases the fob might become desync'd with your vehicle due to software issues or hardware issues. You can fix this problem by visiting your local auto-locksmith or dealer to reprogram your key fob. In some instances it may be necessary to install the software again in your body control module, as well.

Interference

Interference can also cause the key fob to be unable to receive or transmit the signal. This could occur if the key fob is in proximity to a radio transmitter (cell phones or radar detectors) or another source of electromagnetic radiation. The key fob may 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 you've tried everything at home to resolve it (e.g. replacing the battery, reprogramming it and using the spare fiat 500 key key fob, you may have a damaged receiver module on your 500. The receiver module is situated under the dash and receives the radio frequency signals from the key fob. It converts the signals into electronic commands, which are then interpreted by the vehicle.

Fortunately, there's an easy method of resetting all of the on-board systems in your 500 keys, 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 eliminate any remaining electricity, and allow you to restart the car's computer. This can help you get your key fob working again. If the problem persists you should seek out a certified technician. They can identify the root of any problems.