Reasons Your fiat key fobs 500 Key Fob Won’t Work

A key fob for Fiat 500 makes it simple to open doors and start your car. However, there are numerous reasons the fob could stop working. These include a dead battery or damaged receiver module, water damage problems, and interference.

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Dead Coin Battery

A dead battery is probably the most common cause of your 500 key fob being inoperative. Modern key fobs have limited operating range and must be within just a few inches of the vehicle to function. If you are 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 occurs then replace the battery for your coin-cell (Part Number CR2032) with a new battery of a reputable brand like Panasonic Duracell or Energizer. You can find them at your local hardware store or online.

After you’ve replaced the coin cell battery you can test it by standing close to your Fiat 500 and pressing the buttons. The car should blink its parking lights and the key fob should be able to operate the lock and unlock buttons.

If the fob’s key doesn’t work after replacing the battery, it might be damaged by water that blocks it from communicating with the receiver module in your vehicle. Water damage can occur in a variety of ways, such as simply splashing or submerging your key fob in saltwater at the beach. If you suspect your fob was exposed to water, put it in a dry rice bag to draw the moisture back out. If this fails, you’ll have to get your fob changed by an auto locksmith or a dealer.

Water Damage

Damage to the water supply can occur if you immerse the fob into the ocean, or wash it in a washing machine. Saltwater is particularly dangerous to the circuit board of the fob, causing it to short out and eventually die. It’s not a good thing to submerge the fob in water but don’t give up when you accidentally drop it in water or fail to remove it from your pocket.

First remove the battery from the fob. Clean the electronic chip using isopropyl alcohol or a similar product and then dry it completely before replacing the battery. Then, test the fob to test if it works. If the fob doesn’t work, it may need to be reset. This is typically handled by a professional or dealer auto locksmith.

If your key is older and is not programmed for your vehicle You will need to replace it completely. A professional locksmith in the automotive industry can do this job. The locksmith will need to cut the key to match the ignition of your car. They’ll also have to program the fob into your vehicle’s system. This is a cost-effective and quick process that could be completed on the same day.

Receiver Module Issues

One of the simplest reasons your 500 key fob may stop functioning is that it’s out of range. The remote’s range is of 30 feet, so when you’re too far from your car it won’t respond to your commands. You can easily solve this problem by moving the remote closer to your car until it responds.

If you’ve replaced your coin battery (commonly known as”button” or “button” or “watch”) and the fob isn’t working, it could have an internal circuit board issue. Reprogramming your fob can resolve this problem. There are instructions on how to do this on the majority of automobiles by searching YouTube or checking out the owner’s manual.

It could be necessary to replace the metal clips that hold the coin batteries in place. If they loose tension, they could stop the battery from sitting properly, and this will cause your remote to malfunction.

In rare instances, the fob can become out of alignment with your vehicle because of hardware or software problems. This could be a huge trouble, but you could usually resolve this issue by visiting an auto locksmith to have them reprogram your fob. In some cases, the software may also need to be reinstalled in your body control modules.

Interference

In addition to a dead battery on a coin, the key fob may not be receiving or transmitting the signal due to interference. This can happen when the key fob is located near an electronic radio transmitter (cell phones or radar detectors) or any other source of electromagnetic radiation. Other reasons why the key fob might not function include a weak connection to the buttons or the internal chip or water damage.

If your key fob suddenly stopped working, or if you have tried everything at home to solve the issue (e.g. You could have a malfunctioning 500 receiver module after you’ve tried replacing the battery, reprogramming, or using a spare key for fiat 500 key fob. 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.

There’s a simple method to reset the 500’s onboard system, including the keyfob. Disconnect the battery of 12 volts for approximately 15 minutes by taking off the negative cable first then the positive cable. Reconnect the battery. This will eliminate any remaining electrical charge and restart the car’s computer system, which could allow you to get your key fob working again. If the problem persists it is recommended that you consult an expert certified technician. They can determine the root of your issues.