A Intermediate Guide For Fiat 500 Keys
Fiat Panda Key Fob Replacement
Fiat Panda keyfobs are equipped with a transponder that sends an indication from the fob to the car in order to unlock doors or start the motor. However, the key fob may stop working due to a variety of causes.
A dead coin battery is the most frequent reason for key fob malfunctions. Other causes include water damage, a faulty module, and interference signals.
Dead Coin Battery
Replace the battery if your key fob has failed. Use a button cell that has the same voltage, size and specifications as the previous one.
If the key fob has been exposed to water, such as a splash of rain or salt water at the beach, it's going to need to be cleaned before it can be used again. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner can work wonders.
If the key fob has not been exposed to water, but isn't working it could be an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob using an OBDII scan could assist in these situations.
Water Damage
It is possible to get water damage if your key fob was submerged in a puddle, pool or washing machine. It's usually possible to restore it's functionality by getting rid of the battery and scrubbing the circuit board with isopropyl alcohol. It's a good idea to let the fob dry completely before installing a new battery.
If your key fob stopped working even after replacing the battery and reprogramming it, you may have a malfunctioning receiver module. You can find reprogramming procedures for most remote key fobs on YouTube or in your owner's guide. You could also try resetting the car's onboard computer using the OBDII scan tool.
Faulty Receiver Module
The key fob is equipped with the chip that communicates the vehicle's system. If this chip becomes damaged, it cannot longer be able to send or receive signals to the vehicle. This could be due to dropping the key fob, or by exposure to water. If your key fob stopped working due to water exposure and you are unable to fix it if you clean the chip with electronic cleaner or isopropyl alcohol.
However, if the key fob does not respond after cleaning it, you can be sure that the receiver module is not functioning properly and will need to be replaced. A damaged receiver can cause the key to cease to function. This is typically caused by electromagnetic interference.
Faulty electronic chip
The electronic chip in your key fob plays a crucial part in the anti-theft security system of your car. It sends a message to the immobiliser inside your car to inform it whether the key is genuine. The car will not start if the chip is damaged.
A malfunctioning chip could be caused by interference signals from other objects like bad weather conditions or transmitters operating on the same frequency in close proximity to your car. In this situation it is likely that a new fob would be required.
Faulty battery contacts
The battery contacts inside the key fob are delicate and could be damaged with hard usage. If they're bent or damaged, the fob will not send any signals to receiver modules inside the vehicle.
Modern fobs come with rubber seals that keep out water. A splash of water or light rain should be fine, but submerging them in saltwater may harm the chip's electronic components.
The key fob is equipped with an electronic chip that communicates with the immobilizer system of the vehicle to begin it. This system makes use of cryptocoding systems in vehicles that are more modern as well as the traditional red key system for older models. This chip will have to be replaced if damaged.
Poor 12 Volt Battery
A faulty battery can cause the remote to stop working. The car's computer will not recognize the remote when this happens.
Test the battery with the help of a voltmeter to determine its capacity. A fully charged battery will display 12.6 volts. If the reading falls dramatically then it's time to replace the battery.
Install an electrical charge for a short period of time on the battery to check its capacity. This will eliminate approximately 1% of the charge on the surface. Then, measure replacement key fiat 500 . The better the battery's capacity and the longer it can maintain its voltage. The ideal scenario is to keep it close to 12 volts for several minutes.
The radio signal is not working properly. Radio Signal
This is the most frequent reason for the key fob not sending signals to vehicles. The battery can be replaced to fix this problem. It is however important to select a replacement battery that has the same size and voltage as the original one.
Fobs endure a lot of abuse, but they're not impervious to destruction. The battery buttons and the contacts are fragile and are susceptible to being bent or damaged by rough use.
The signal could also be impacted by other transmitters or objects which use the same frequency. A light-control panel in your home, for instance, may interfere with key fobs that have the same frequency. This could affect the remote control of your car.
Faulty OBDII Scan Tool
There are many reasons why a scan tool might not work. Some are more complex than others.
Professional scan tools enable mechanics to monitor 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 isn't turning on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If they are all OK, a fuse may have been blown. This is among the most common causes of scan tool failure. The easiest fix is to replace the fuse that is blowing up.