Why No One Cares About Fiat 500 Keys
Fiat Panda Key Fob Replacement
Fiat Panda keyfobs are equipped with a transponder which transmits an indication from the fob to the car to open doors or start the motor. However, the fob could not function due to a variety of reasons.
The most common cause of key fob malfunction is the battery of the coin is dead. Other reasons include water damage, the receiver module is defective and signal interference.
Dead Coin Battery
If your key fob's battery is dead, the first step is to replace it. Use a new button cell battery with identical in size, voltage and specifications like the previous one.
If the key fob was exposed to water, for example a splash of rain or salt water on the beach, it will have to be cleaned before it can be used again. The best solution is to use an old towel soaked in isopropyl, or electronic cleaner.
If the key fob doesn't working despite being not exposed to water, it could be due a malfunction in the receiver module or in the internal electronic chip. Reprogramming the keyfob using an OBDII scan could aid in these situations.
Water Damage
If your key fob has gotten submerged in a puddle or pool or walked through the washing machine, it could have some water damage. It's usually possible to fix it by getting rid of the batteries and cleaning the circuit board using rubbing alcohol. It is recommended to let the circuit board completely dry before installing batteries.
You may have a faulty module when your key fob ceases working after replacing the battery or changing the programming. You can find the instructions for reprogramming most vehicles' remote keys on YouTube or in the owner's manual. You can also reset the computer in your car with the OBDII scanner tool.
Faulty Receiver Module
The key fob has the chip that communicates the vehicle's system. The chip will stop sending and receiving signals to the car if damaged. This could be due to dropping the key fob or due to exposure to water. If the key fob stops functioning after exposure to water, it is possible to repair the issue by cleaning or cleaning the chip with isopropyl alcohol, or electronic cleaner.
However, if the key fob is still unable to not respond after cleaning it then it is likely that the module is faulty and needs to be replaced. A malfunctioning receiver could cause the key to not work. This is usually due to electromagnetic interference.
A defective electronic chip

The electronic chip inside your key fob plays a crucial role in the anti-theft security system of your vehicle. It sends a signal the immobiliser unit in the vehicle to determine whether or not the key is legitimate. Your car will not start if the chip is damaged.
A faulty chip can also be caused by interference signals from other objects like bad weather conditions or transmitters on the same frequency near your vehicle. In this case the replacement fob will be needed.
Contacts to the battery are not working properly.
The battery contacts on the key fob could be damaged by heavy usage. If they're bent, or broken, the fob won't transmit any signals to receiver modules in the vehicle.
Modern fobs come with rubber seals to keep out water. A splash of water or a light rain is fine but submerging them into saltwater may damage the electronic chip.
The key fob houses the chip that connects to the vehicle's immobilizer in order to activate it. This system utilizes cryptocoding systems in the latest vehicles, or the old red key system in older ones. If the chip is not working properly it must be replaced.
The 12 Volt Battery is faulty
A defective battery can cause the remote to stop working. When this happens, the car's computer system cannot recognize that the remote is inside the vehicle.
Test the battery using the help of a voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading falls dramatically then it's time to replace the battery.
Install an electrical charge for a short time on the battery to determine its capacity. This will take away approximately 1 percent of the surface charge. Then, measure the voltage once more. The longer the battery can hold its voltage and the higher its capacity. Ideally, it should remain close to 12 volts several minutes.
The radio signal is not working properly. Radio Signal
This is the most common reason for the key fob not sending signals to the car. This issue can be resolved by replacing the battery. It is however important to choose a battery that is the same voltage and size as the original.
Fobs aren't impervious to damage and can take a lot. Contacts and buttons on batteries can be damaged by rough handling.
G28 Car Keys could also be impacted by other transmitters or objects that use the same frequency. A light-control panel at your home, for example can interfere with key fobs that have the same bandwidth. This could affect the remote control of your car.
Afflicted OBDII scan tool
There are a variety of reasons why scanner tools may not work. Some are more complicated than others.
Professional scan tools enable mechanics to look over the car's network and perform various self-tests. These tools can save you a lot of time, but they're expensive and out of reach for most DIYers.
If your OBD2 scan tool won't power on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If they're both in good shape the chances are that a fuse is blowing. This is the most frequent reason for failure of the scan tool. It is typically easy to fix the problem by replacing the fuse that has blown.