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Reasons Your Fiat 500 Key Fob Won't Work

A key fob for the Fiat 500 is a convenient way to open the doors and begin the car. There are a myriad of reasons the fob could stop working. This includes a dead coin-battery or water damage, problems with the receiver modules, and interference.

This listing is for a NEW replacement fiat multipla key Flip Key Remote - like the Ilco brand that must be programmed professionally by a local locksmith (click here to search for a Locksmith Search). Includes trunk, lock and unlock buttons.

Dead Coin Battery

The most common reason your 500 key fob doesn't work is a dead battery. Modern key fobs have a very restricted operating range, and should be within only a few feet from the vehicle to operate. If you are not within your vehicle and press the keyfob button it won't respond and display the message "Key Fob Not Detected".

If this happens, simply replace the battery in the coin cell (Part number CR2032) with a new one from a reputable brand like Panasonic, Duracell, or Energizer. You can find them at your local hardware store or on the internet.

You can test the battery of your coin-cell by pressing the buttons while standing close to your Fiat Doblo Key Replacement 500. The car should flash its parking lights, and the key fob should be able to operate the lock and unlock buttons.

If the key fob doesn't function after replacing the battery, it may be damaged by water that blocks it from communicating with the receiver module in your car. Water damage can happen in many ways, such as simply splashing or submerging the key fob in saltwater at the beach. If you suspect that your fob was exposed to water, you can place it in a bag of rice to draw out the moisture. If that doesn't work your fob may need to be reset by a professional locksmith or dealer.

Water Damage

Water damage can happen if you submerge the fob in the ocean, or wash it in a washing machine. Saltwater can cause the circuit board to become shorted and eventually end up dying. It's not the best idea to submerge the fob in water but don't give up if you accidentally drop it in water, or fail to take it out of your pocket.

Take the battery off first. Before replacing the battery clean the electronic chip using isopropyl or a similar product. Test the fob next to see if it is working. If the fob doesn't work, it may need to be reset. This is usually done by an auto locksmith or dealer.

If the key you have is older and is not programmed to work with your vehicle, you will need to replace it completely. A professional locksmith for automotive can do this job. The locksmith needs to cut the key to match the ignition on your vehicle. They'll also need to program the fob into your car's system. This is a simple and cost-effective procedure that can be completed in the same day.

Receiver Module Issues

One of the simplest reasons your 500 key fob won't be working is 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 will not respond to your commands. This can easily be resolved by moving it closer to your vehicle until it begins responding.

If your fob doesn't work after you replace the battery for the coin, also called a "button", "watch" or "button", it could be due to an issue with the circuit board inside. Reprogramming your fob can resolve this problem. You can find instructions on how to do this for most automobiles by searching YouTube or checking out the owner's manual.

It is possible to replace the metal clips that keep the battery of your coin in place. If they become loose, it can prevent your coin battery from sitting properly, causing your remote to malfunction.

In rare instances, the fob may become disconnected from your vehicle due to software or hardware issues. You can fix this problem by visiting your local dealer or auto-locksmith to reprogram your key fob. In certain instances, they may need to reinstall the software on your body control module, as well.

Interference

Interference can also cause the key fob to not receive or transmit signals. This could happen when the keyfob is located in close proximity to a radio transmitter such as a cell phone or radar detector. The key fob could not function due to a bad connection to the buttons or water damage, or damage to the internal chips.

If your key fob suddenly stopped working, or if you have tried everything at home to fix it (e.g. replacing the battery, reprogramming it and using the spare key fob, it could have a defective receiver module on your 500. The receiver module, located under the dashboard, receives radio frequency signals from your key fob. It transforms the signals into electronic commands which are then read by the vehicle.

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