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

A key fob from fiat 500 key replacement 500 allows you to easily open doors and start your vehicle. However, there are many reasons why the fob won't be working. This could be due to a dead coin-battery, water damage, problems with the receiver modules, and interference.

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Dead Coin Battery

A dead battery is the most common reason for your 500 key fob not working. Modern key fobs only have limited operating range and must be within only a few inches from the vehicle in order to work. If you're far from your vehicle and press the keyfob button, it will not respond and display the message "Key Fob Not Detected".

If this occurs If this happens, replace the battery in the coin-cell (Part Number CR2032) by a fresh one from a reputable brand like Panasonic Duracell or Energizer. They are available at your local hardware store, or on the internet.

You can test the battery on your coin-cell by pressing the buttons while standing near your Fiat 500. The parking lights will flash and the key fob should operate the lock and unlock switches.

If the key fob doesn't work after replacing the battery, it might have water damage that stops it from communicating with the receiver module inside your car. Water damage can happen in a variety of ways, ranging from a light splash to submerging your fob in salt water at the beach. If you suspect your fob was exposed to water, you can try placing it in a dry rice bag to pull the moisture back out. If that doesn't work, your fob will probably need to be reprogrammed by an experienced auto locksmith or dealer.

Water Damage

Water damage can happen if you submerge the fob in the ocean or wash it in a washer. Saltwater can cause the circuit board to become shorted and eventually end up dying. It's not a good idea to let the fob get wet however, don't give it up when you accidentally drop it in water, or fail to take it out of your pants pocket.

Remove the battery first. Clean the electronic chip using isopropyl ethanol or a similar product and then dry it thoroughly before replacing the battery. Test the fob next to verify if it's working. If the key does not work, it may need to be reprogrammed. This is typically done by a dealer or professional auto locksmith.

If your key is old and is not programmed for your car You will need
If the key fob has stopped working one day suddenly or after trying everything you can do at home to solve it e.g. You may have a faulty 500 receiver module If you've tried replacing it with a battery, [Redirect-302] reprogramming, or using an alternative key fob. The receiver module, located under the dashboard, is able to pick up radio frequency signals from your key fob. It converts them to electronic commands that the vehicle interprets.

There is a straightforward method to reset the 500's on-board system including the keyfob. Disconnect the battery for 15 minutes by removing first the negative cable, then the positive cable. Then reconnect the battery. This will erase any remaining electrical charge, and then restart the computer of your car. This will help you get your key fob to work again. If the issue continues, you should speak with an expert technician. They will be able to identify the root cause of your issue.