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Fiat Panda Key Fob Replacement Fiat Panda keyfobs are equipped with a transponder that transmits an indication from the fob to the car to unlock doors or turn on the motor. The fob can stop functioning due to a variety of reasons. A dead battery for the coin is the most frequent reason for a key fob malfunction. Other causes are water damage, the receiver module is defective and signal interference. Dead Coin Battery If the battery in your key fob has died, the first thing to do is replace it. Choose a new button battery that is the same size, voltage, and specification as the original. If the key fob was exposed to water (such as rain or saltwater at the beach) it should be cleaned prior to using it again. The best method is to use an old towel soaked in isopropyl or electronic cleaner. If the key fob has not been exposed to water but isn't working it could be due to a problem with the receiver module or an internal electronic chip. In these cases, reprogramming the key fob using an OBDII scanner may assist. Water Damage You could have water damage if your key fob was submerged in a puddle, pool or washing machine. It is usually possible to get it back to working by taking off the battery and then scrubbing the circuit board with isopropyl alcohol. It is recommended to let the circuit board completely dry before putting in batteries. If your key fob stopped working even after replacing the battery and reconfiguring it, you may have a problem with the receiver module. You can find information on reprograming the majority of remote keys on YouTube, or consult the owner's manual. You can also reset your computer of your vehicle using the OBDII scanner tool. Faulty Receiver Module The key fob is equipped with an electronic chip that communicates with the car's system. If the chip is damaged, it will be unable to longer transmit and receive signals to the vehicle. This can be caused by dropping the key fob or by water exposure. If the key fob is not functioning after exposure to water, it could be possible to repair it by cleaning the chip using isopropyl alcohol or an electronic cleaner. If the key fob won't respond to cleaning, it is likely that the module is in a fault and needs to be replaced. A defective receiver can cause the key to not work. This is usually caused by electromagnetic interference. Faulty electronic chip The electronic chip in your key fob is a vital role in the anti-theft security system in your car. fiat ducato replacement key sends a signal to the immobiliser inside your car to inform it if the key is valid. The car won't start in the event that the chip has been damaged. A damaged chip could be caused by interference signals from objects, bad weather conditions or transmitters operating on the same frequency close to your vehicle. In this scenario you'll need a new key fob. Contacts for the battery that are defective The battery contacts of the key fob are delicate and can get damaged through repeated use. If they're bent or broken, the fob won't send any signals to the receiver modules inside the vehicle. Modern fobs are designed with rubber seals in order to keep out water. In the event of submerging them in water, even if it's just small splash or drizzle could harm the chip's electronic components. The key fob comes with an embedded chip that communicates to the immobilizer system of the vehicle to begin it. It uses the red keys of older vehicles or the crypto coding system in modern vehicles. If the chip is not working properly it will have to be replaced. Problems with 12 Volt Batteries A damaged battery can cause the remote to cease to function. If this happens the car's computer will not be able to recognize that the remote is within the vehicle. Test the battery using a voltmeter before replacing it to determine its capacity. A fully charged battery will display 12.6 volts. If the reading decreases significantly, it is time to replace the battery. Set an electrical load for a short time on the battery to determine its capacity. This will eliminate approximately 1% of the charge on the surface. Then, test the voltage once more. The longer the battery can hold its voltage more effectively, the greater its capacity. The ideal is to keep it close to 12 volts over several minutes. Radio Signal Faulty Radio Signal This is the most typical reason for keys not sending signals to vehicles. The battery could be replaced to fix this problem. It is crucial to purchase batteries that have the same dimensions and voltage as the original. Fobs are not indestructible and are susceptible to damage. Battery contacts and buttons can be damaged by rough handling. A signal may also be interrupted by other objects or transmitters which use the same frequency. A light-control panel in your home, for example can interfere with key fobs that use the same frequency. This could affect the remote control of your car. The tool is not working properly. OBDII scan tool There are many reasons why a scanner might not work. Some are more complex than others. Professional scan tools allow mechanics to examine the car's systems and run a range of self-tests. These tools can save you a lot of time, but they're expensive and not accessible to most DIYers. If your OBD2 scan tool won't power on, test the voltage at terminals 16 (scantool power) and 4 (chassis earth). If both are in good condition, a fuse may have been blown. This is one of the most common causes of scan tool failure. It is often simple to fix the issue by replacing the fuse blowing up.