15 Terms That Everyone In The Fiat 500 Keys Industry Should Know Fiat Panda Key Fob Replacement

Fiat Panda key fobs contain an transponder chip that transmits a signal to your car to unlock the doors or start the engine. However, the key fob may be inoperable due to various reasons.

A dead battery for the coin is the most frequent cause of the malfunction of a key fob. Other causes include water damages or a malfunctioning module and interference signals.

Dead Coin Battery

Replace the battery if the key fob has gone out of service. Use a button cell battery that has the same voltage, size and specifications as the old one.

If the key fob was exposed to water (such as saltwater or rain at the beach), it must be cleaned prior to using it again. A paper towel soaked with isopropyl alcohol or electronic cleaner can help.

If the key fob has not been exposed to water but still does not work it could be due to an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob by using an OBDII scan may aid in these situations.

Water Damage

You could have water damage to your key fob if it was submerged in a puddle, pool or washing machine. You can usually restore it's functionality by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It's best to let the fob dry completely prior to installing a new battery.

If your key fob stopped working even after replacing the battery and programming it again, you might have a faulty receiver module. You can find reprogramming procedures for most vehicles' remote key fobs on YouTube or in the owner's guide. You could also try resetting the car's onboard computer using the OBDII scan tool.

Faulty Receiver Module

The key fob's chip is a chip that connects to the vehicle's system. If this chip becomes damaged, it cannot longer transmit and receive signals to the vehicle. A key fob falling off can cause this, as could exposure to water. If the key fob is not working after exposure to water it could be possible to repair the issue by cleaning or cleaning the chip with isopropyl alcohol or electronic cleaner.

If the key fob continues to not respond following cleaning, you can be sure that the receiver module is not functioning properly and must be replaced. A defective receiver can cause the key to not work. This is usually due to electromagnetic interference.

Faulty Electronic Chip

The electronic chip inside the key fob is an essential component of the anti-theft systems in your vehicle. It transmits a message the immobiliser in your car to inform it whether the key is genuine. Your car will not start in the event that the chip is damaged.

A malfunctioning chip can be caused by interference from other objects, bad weather or transmitters in the vicinity of your vehicle. In this scenario it is likely that a new fob would be needed.

Contacts to the battery are not working properly.

The battery contacts of the key fob could be damaged through heavy use. If they're damaged or bent, the key fob will not send any signals to the receiver modules in the car.

Modern fobs feature rubber seals that keep out water. Submerging them in water even if it is just the slightest splash or drizzle, can damage the chip's electronic components.

The key fob houses the chip that connects to the vehicle's immobilizer system to activate it. This system uses crypto coding systems in modern vehicles, or the old red key system in older ones. If this chip is faulty it will have to be replaced.

A faulty 12 Volt battery

A faulty battery can cause the remote to cease to function. When this occurs, the car's computer system will not recognize that the remote is inside the vehicle.

Test the battery with a voltmeter before replacing it to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops significantly it's time to change it.

To test the battery's power, place an electrical load on it for a few minutes. This will remove approximately 1 percent of the surface charge. Then take another measurement of the voltage. The better the battery's capacity, the longer it can keep its voltage. Ideally, it will remain close to 12 volts for several minutes.

The radio signal is not working properly. Radio Signal

This is the most common reason for keys not sending signals to a car. The battery can be replaced to fix this issue. It is crucial to purchase an identical battery dimensions and voltage as the original.


Fobs can take a lot abuse, but they're not impervious to destruction. Battery contacts and buttons can be damaged through rough handling.

A signal may also be impacted by other objects or transmitters which use the same frequency. A light-control system in your home, for instance could interfere with key fobs using the same bandwidth. This can affect the remote control of your car.

Incorrect OBDII scan tool

There are a variety of reasons why a scanner tool may not work. new key for fiat 500 are more complicated than others.

Professional scan tools enable mechanics to monitor the car's network, and run various self-tests. These are real time savers but they're also expensive, out of the reach of most DIYers.

If your OBD2 scan tool isn't turning on, make sure you check the voltage at terminals 16 (scantool power) and 4 (chassis earth). If all is fine it could be that a fuse has ruptured. This is among the most common causes of failures in the scan tool. The easiest solution is to replace the blown fuse.