The Ultimate Glossary Of Terms About Fiat 500 Keys
Fiat Panda Key Fob Replacement

Fiat Panda keyfobs are equipped with a transponder which transmits an electronic signal from the fob to the car to unlock doors or turn on the motor. However, the fob may not function due to a variety of reasons.
The most common reason for key fob malfunction is the battery of the coin is dead. Other reasons include water damage, a faulty receiver module and signal interference.
Dead Coin Battery
Replace the battery if your key fob has died. Make use of a button cell battery that has the same voltage, size, and specifications as the old one.
If the key fob has been exposed to water, for example a splash of rain or salt water at the beach, it will have to be cleaned before it can be used again. A paper towel soaked in alcohol or electronic cleaner will help.
If the key fob has not been exposed to water but still does not work, there may be a problem with the receiver module or an internal electronic chip. In these cases you can reprogramme the key fob with an OBDII scanner could assist.
Water Damage
It is possible to get water damage if your key fob was submerged in a puddle, pool or washing machine. It is usually possible to get it back in working order by taking the batteries off and cleaning the circuit board using ruby alcohol. It is recommended to allow the device to completely dry prior to installing batteries.
It could be that you have a defective module if your key fob stops working after replacing the battery or reprogramming. You can find reprogramming procedures for most vehicles' remote key fobs on YouTube or in your owner's guide. You can also try resetting the car's computer onboard using the OBDII scan tool.
Faulty Receiver Module
The key fob has an electronic chip that communicates with the vehicle's system. If the chip is damaged, it can no longer transmit or receive signals to the vehicle. This can be caused by dropping the key fob or by exposure to water. If the key fob you have purchased has stopped functioning due to exposure to water, you may be able fix the issue if you clean the chip with electronic cleaner or isopropylethanol.
If the key fob does not respond to cleaning, it's likely that the module is in an issue and should be replaced. A defective receiver can cause the key to stop working. This is typically caused by electromagnetic interference.
A defective electronic chip
The electronic chip inside the key fob is an important element of the anti-theft device in your car. It transmits a message the immobiliser in your car to determine whether the key is legitimate. If the chip is damaged or broken, the car won't start.
A damaged chip could be caused by interference signals from objects such as weather conditions, objects or transmitters operating on the same frequency near your car. In this scenario, a new fob will be needed.
Contacts for the battery that are defective
The battery contacts on a key fob can be damaged through heavy use. If they're bent, or broken, the fob won't send any signals to the receiver modules inside the vehicle.
Modern fobs come with rubber seals to keep out water. A splash of water or light rain is fine but submerging them into saltwater could harm the electronic chip.
The key fob comes with an embedded chip that communicates to the immobilizer system of the vehicle, allowing it to start it. The system uses the old red keys for older vehicles, or the cryptocoding system that is used in modern vehicles. If the chip is not working properly, it will need to be replaced.
Problems with 12 Volt Batteries
A malfunctioning battery could cause the key fob to stop working. The car's computer may not recognize the remote when this occurs.
Before you replace the battery, test it by using a the voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading drops dramatically, it's time to replace it.
To test the battery's power put an electrical load on it for a couple of minutes. This will take away approximately 1% of the charge on the surface. Then, test the voltage once more. The longer the battery is able to hold its voltage greater is its capacity. Ideally, it will remain close to 12 volts for several minutes.
The radio signal is not working properly. Radio Signal
This is the main reason for keys not sending signals to a car. This problem can be solved by replacing the battery. However, it is crucial to choose a battery with the same size and voltage as the original one.
Fobs can take a lot abuse, but they're not indestructible. The battery buttons and the contacts are fragile and can be bent or broken with the force of.
Other transmitters or objects that use the same frequency could also interfere with a signal. For The Key Lab , a light-control panel that is near your home could send interference over the same frequency that key fobs utilize. This could affect the remote control of your car.
Afflicted OBDII Scan Tool
There are a number of reasons why a scan tool could not work. Some are more complex than others.
Professional scan tools enable a mechanic observe the car's network, and run various self-tests. These tools can save a lot of time, but they're expensive and are out of reach for most DIYers.
If your OBD2 scan tool fails to turn on, test the voltage at terminals 16 (scantool power) and 4 (chassis earth). If they are all OK, a fuse may have blown. This is the main reason for failures of the scanner. The easiest fix is to replace the fuse that is blowing up.