Reasons Your fiat car keys cut 500 Key Fob Won't Work

A Fiat 500 key fob makes it simple to open doors and start your car. However, there are a variety of reasons why the fob won't be functioning. These include a dead coin battery or damaged receiver module, water damage issues, or interference.

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Dead Coin Battery

The most frequent reason why your 500 key fob won't function is an inactive battery. Modern key fobs have an operating range that is limited and must be within a few inches of your vehicle in order to function. If you're far from your vehicle when you press the key fob button, the car won't respond, and will display a "Key Fob Not Detected" message in the instrument cluster.

If this happens, simply replace the battery of your coin cell (Part number CR2032) with a fresh one from a reliable brand such as Panasonic, Duracell, or Energizer. You can usually find them in your local hardware store or online.

You can test the coin-cell battery by pressing the buttons while you're standing close to your fiat key programmer (try this site) 500. The car should blink its parking lights, and the key fob should be able to operate the lock and unlock switches.

If the fob's remote doesn't work after replacing the battery, it may have water damage that stops it from connecting to the receiver module inside your car. Water damage can occur in a number of ways, from an accidental splash to submerging the fob into salt water at the beach. If you suspect your fob has been exposed to water, put it in a dry rice bag to draw the moisture back out. If this doesn't work the fob might need to be reprogrammed by a professional locksmith or dealer.

Water Damage

While the fob comes with rubber seals that keep water from the chip's electronic circuit and out of the ocean or washing it in a machine could cause water damage. Saltwater can cause the circuit board to short and eventually die. If you get the fob wet, it's not an ideal choice but if you accidentally drop it into a glass of water or do not remember to take it out of your pants pocket prior to running the washer, don't give up hope.

First take the battery off the fob. Before replacing the battery, clean the electronic chip with isopropyl or similar products. Test the fob afterward to check if it's functioning. If the key doesn't function then it might need to be programmed again. This is usually done by an auto locksmith or dealer.

If the key is a newer model and was not programmed to your car It will most likely need to be replaced completely. This is an easy process that can be handled 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 low-cost and quick process that can be completed in the same day.

Receiver Module Issues

The 500 key fob could stop working because it is out of range. The remote's range is of 30 feet, which means if you are too far away from your vehicle it won't be able to respond to your commands. This can be fixed by moving it closer to your vehicle until it begins responding.

If your fob does not work after replacing the coin battery, also called a "button", "watch" or "button" it could be due to an issue with the internal circuit board. In most cases, reprogramming the fob will resolve this problem. 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 the correct position. If they lose tension, it may prevent your battery from being properly seated and cause your remote to malfunction.

In rare cases the fob can become out of sync with your vehicle because due to hardware or software issues. This issue can be fixed by visiting your local dealer or auto-locksmith to reprogram your key fob. In some cases they might need to reinstall the software on your body control module too.

Interference

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

If the key fob suddenly stopped working, without notice or even after trying everything you can at home to fix it e.g. You may have a faulty 500 receiver module if you've tried replacing the battery, reprogramming or using an alternative key fob. The receiver module, which is located beneath the dashboard, receives radio frequency signals from your key fob. It converts the signals into electronic commands, which are then processed by the vehicle.

Luckily, there is an easy method of resetting all of the onboard systems in your 500, including the key fob. Disconnect the 12 volt battery for approximately 15 minutes by disconnecting the negative cable first then the positive cable. Reconnect the battery. This will clear out any residual electricity and restart the car's computers. This could help get your key fob working again. If the problem persists you should seek the advice of an expert technician. They will be able to determine the root of any issues.