Fiat Panda Key Fob Replacement
Fiat Panda key fobs contain an transponder chip that transmits the signal to your vehicle to unlock the doors or start the engine. However, the fob could not function due to a variety of reasons.
The most common reason for key fob malfunction is a dead coin battery. Other causes include water damage or a damaged module and interference signals.
Dead Coin Battery
If the battery in your key fob has gone out of service, the first thing to do is replace it. Use a button cell battery that has the same voltage, size, and specifications as your 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 is able to be used again. A paper towel that has been soaked in isopropyl alcohol or electronic cleaner can do the trick.
If the key fob doesn't working even though it is not exposed to water, it could be due to a malfunction in the receiver module, or even in the internal electronic chip. In fiat 500 key replacement can reprogramme the key fob with an OBDII scanner might aid.
Water Damage
There could be 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 taking off the battery and then scrubbing the circuit board with isopropyl alcohol. It's a good idea to allow the fob to dry completely before installing a new battery.
It could be that you have a defective module if your key fob stops working after replacing the battery or changing the programming. You can find reprogramming procedures for most remote key fobs on YouTube or in your owner's guide. You can also reset the computer of your vehicle using the OBDII scanner tool.
Faulty Receiver Module
The key fob contains a chip that communicates with the vehicle's system. If the chip is damaged, it cannot longer transmit or receive signals to the vehicle. This could be due to dropping the key fob or by water exposure. If your key fob has stopped working due to water exposure it is possible to fix it by attempting to clean the chip with electronic cleaner or isopropyl ethanol.
However, if the key fob is still unable to not respond after cleaning it, you can be sure that the receiver module is not functioning properly and needs to be replaced. A malfunctioning receiver module could also cause the remote control key to not function. This is usually due to electromagnetic interference.
A malfunctioning electronic chip
The electronic chip inside your key fob plays an important part in the anti-theft security system in your car. It sends out a signal the immobiliser device in your car to determine whether or not the key is in fact valid. Your car will not start if the chip is damaged.
A faulty chip can also be caused by interference signals from objects such as weather conditions, objects or transmitters operating on the same frequency near your car. In this situation, you will need a new key fob.
Contacts to the battery are not working properly.
The battery contacts inside the key fob are fragile and are susceptible to damage through repeated use. If they're bent or damaged, the fob will not send any signals to the receiver modules inside the vehicle.
Modern fobs come with rubber seals that block out water. A splash of water or light rain should be fine but submerging them into saltwater may damage the electronic chip.
The key fob is equipped with chip that communicates with the immobilizer system of the vehicle in order to start it. The system uses the old red keys in older vehicles or the cryptocoding system that is used in newer cars. The chip must be replaced if malfunctioning.
Problematic 12 Volt Battery
A malfunctioning battery could cause the key fob to work. When this occurs, the car's computer system won't recognize that the remote is in the vehicle.
Test the battery with the help of a voltmeter to determine its capacity. A fully charged battery should read 12.6 volts. If the reading decreases significantly, it's time to replace it.
Install an electrical charge for a few moments on the battery to determine its capacity. This will take away 1% of the surface charges. Then, you can measure the voltage once more. The longer a battery can keep its voltage steady, the better its capacity. The ideal is to keep it close to 12 volts during several minutes.
Problems with Radio Signal
This is the most frequent reason for a key fob to stop sending signals to vehicles. The battery is able to be replaced to resolve this issue. It is however important to purchase a battery that has the same voltage and size as the original.
Fobs aren't impervious to damage and are susceptible to damage. Contacts and buttons on batteries can be damaged through rough handling.
Other objects or transmitters using the same frequency can disrupt the signal. For instance, a light-control panel close to your home can send interference over the same frequency as key fobs utilize. This can interfere with the remote control of your car.
Afflicted OBDII Scan Tool
There are many reasons why a scanner may not work. Some are more complicated than others.
Professional scan tools allow mechanics to look over the car's networks and run a variety of self-tests. These tools can save you a lot of time, but they are costly and out of reach for most DIYers.
If your OBD2 scan tool isn't turning on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition, a fuse may have been blown. This is the main reason for a scan tool to fail. The most straightforward fix is to replace the blown fuse.