Reasons Your Fiat punto Replacement key 500 Key Fob Won't Work

A key fob for the Fiat 500 makes it simple to open doors and start your car. There are a myriad of reasons the fob could stop functioning. This includes a dead coin-battery and water damage, as well as issues with the receiver module, and interference.

This listing is for a NEW replacement fiat car keys Flip Key Remote - look-alike Ilco brand that must be professionally programmed by a local automotive locksmith (click here to search for a Locksmith Search). It includes lock, Fiat Punto Replacement Key unlock and trunk buttons.

Dead Coin Battery

A dead battery is probably the most common cause of your 500 key fob being inoperative. Modern key fobs operate with a limited operating range and should be within some feet of the car to operate. If you're far from your vehicle when you press the key fob button the car will not respond, and will display the "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 brand new one from a reputable manufacturer such as Panasonic, Duracell, or Energizer. You can find them in your local hardware store, or on the internet.

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

If your key fob still isn't working even after replacing the battery, it may be water damage that prevents it from communicating with the module in your vehicle. Water damage can occur in a number of ways, ranging from an accidental splash to submerging the fob 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, your fob may need to be reset by an experienced auto locksmith or the dealer.

Water Damage

While the fob comes with rubber seals to keep water from the chip's electronic circuit, submerging it in the ocean or washing it in a machine can cause water damage. Saltwater can cause the circuit board to short and then fail. If you get the fob wet, it's not an option however, if you drop it into an empty cup of water, or don't remember to remove it from your pocket before you run the washing machine and you don't have a chance, don't give in.

First, remove the battery from the fob. Before replacing the battery, clean the electronic chip using isopropyl or similar products. Then check the fob to test if it works. If the fob doesn't work, it may have to be programmed again. This is usually handled by a dealer or professional auto locksmith.

If your key is old and not programmed for your vehicle, you will need to replace it completely. A professional locksmith for automotive can carry out this simple task. The locksmith needs to cut the key to match the ignition of your car. The locksmith also needs to reprogram the fob into the vehicle's system. This is an affordable and quick process that can be completed on the same day.

Receiver Module Issues

The 500 key fob you have may not work because it's out of range. The remote typically has an operating range of 30 feet or less and if it's far away from your car it won't respond to your commands. This can be easily fixed by moving it closer to your vehicle until it starts responding.

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

It's possible that you need to replace the metal clips that keep the coin battery. If they lose tension it could prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare instances the fob might become disconnected from your vehicle due to software problems or hardware issues. You can fix this issue by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases, the software may also need to be reinstalled in your body control modules.

Interference

Interference can also cause the key fob to not receive or transmit the signal. This could happen when the keyfob's location is in close proximity to a radio transmitter, such as a cell phone or radar detector. The key fob may not function because of a problem to the buttons water damage or damage to the internal chips.

If your key fob suddenly stopped working, or you have tried everything at home to solve the issue (e.g. replacing the battery, reprogramming it and using the spare key fob, you could have a malfunctioning receiver module on your 500. The receiver module is located under the dash and is able to pick up the radio frequency signals from the key fob. It converts them to electronic commands that the vehicle interprets.

Fortunately, there's an easy method to reset every single system on board in your 500 device, including the key fob. Disconnect the battery of 12 volts for about 15 minutes, by removing the negative cable first then the positive cable. Then reconnect the battery. This will eliminate any remaining electrical charge, and then restart the car's computer. This can help you get your key fob working again. If the issue persists you should seek out an experienced technician. They can determine the exact cause of your problem.