How To Get More Results From Your Fiat 500 Keys
Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain an transponder chip that transmits an alert to your car to open the doors or start the engine. The fob might stop working due to a variety reasons.
The most commonly cited reason for key fob malfunction is an inoperable coin battery. Other reasons include water damage, malfunctioning receiver modules, and signal interference.
Dead Coin Battery
If your key fob's battery has died, the first thing to do is replace it. Use a new button cell battery that has the same voltage, size, and specification as the old one.
If the key fob was exposed to water, such as a splash of rain or salt water at the beach, it will have to be cleaned before it is able to be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner will do the trick.

If the key fob isn't working despite not being exposed to water it could be due to a malfunction in the receiver module or internal electronic chip. Reprogramming the keyfob through an OBDII scan could help in these instances.
Water Damage
There could be water damage if your key fob was submerged in a pool, puddle or washing machine. It's usually possible to get it back in working order by taking the batteries off and cleaning the circuit board using rubbing alcohol. It's best to allow the device to completely dry before putting in a battery.
There could be a problem with the module in the event that your key fob stops working after replacing the battery or updating. You can find instructions for the reprogramming of most remote keys on YouTube or in the owner's manual. You can also try resetting the car's computer onboard using the OBDII scan tool.
Faulty Receiver Module
The key fob contains a chip that communicates with the vehicle's system. This chip will stop sending and receiving signals to the car when it is damaged. Dropping the key fob could result in this, as can water exposure. If the key fob is not working after water exposure it is possible to fix the issue by cleaning the chip with isopropyl alcohol or electronic cleaner.
However, if the key fob continues to not respond following cleaning, it is likely that the module is faulty and needs to be replaced. A faulty receiver can also cause the key to cease to function. This is usually due to electromagnetic interference.
Faulty Electronic Chip
The electronic chip that is in your key fob is a vital part in the anti-theft security system of your vehicle. It sends a signal to the immobiliser in your car to tell it if the key is valid. If replacement fiat 500 key is damaged or damaged, your car won't start.
A faulty chip may also be caused by interference from other objects, bad weather or transmitters close to your vehicle. In this situation you'll need an entirely new key fob.
Contacts for the battery that are defective
The battery contacts on the fob's key can be damaged due to heavy use. If they are broken or bent, the fob will not be able to send any signals to the receiver modules inside the car.
Modern fobs are equipped with rubber seals that keep out water. Submerging them in water, even if just a light drizzle or splash can harm the chip's electronic circuit.
The key fob is equipped with an embedded chip that communicates to the immobilizer system of the vehicle to start it. The system uses the old red keys for older vehicles, or the cryptocoding system found in the latest vehicles. The chip must be replaced if it's damaged.
Faulty 12 Volt Battery
A defective battery can cause the remote to cease to function. If this happens, the car's computer system cannot recognize that the remote is within the vehicle.
Before replacing the battery, test it by using a a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading decreases significantly it is time to replace the battery.
To test a battery's capacity put an electrical load on it for a couple of minutes. This will eliminate about 1% of the charge on the surface. Then, measure the voltage once more. The higher the capacity of the battery, the longer it can maintain its voltage. Ideal is to hold close to 12 volts for several minutes.
Faulty Radio Signal
This is the main reason for a key fob to stop sending signals to cars. The battery is able to be replaced to resolve this issue. It is crucial to purchase a battery that has the same voltage and dimensions as the original.
The buttons are not impervious to destruction and can withstand a lot. Battery contacts and buttons can be damaged through rough handling.
Other transmitters or objects using the same frequency could also disrupt the signal. For instance, a light control panel close to your home can send interference on the same frequency that key fobs utilize. This could cause interference with the remote control of your car.
Problems with OBDII Scan Tool
There are many reasons why a scanner tool may not work. Some are more complicated than others.
Professional scan tools enable mechanics to monitor the car's network and run various self-tests. These tools can help save time, but they are costly and out of reach for the majority of DIYers.
If your OBD2 scan tool fails to turn on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're both in good shape, it's likely that a fuse has failed. This is one of the most frequent causes of failures in the scan tool. It is generally easy to fix the issue by replacing the fuse that has blown.