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Fiat Panda Key Fob Replacement Fiat Panda key fobs contain transponder chips that send a signal to your car to open the doors or start the engine. However, the fob could not function due to a variety of reasons. A dead coin battery is the most frequent cause of malfunctioning keys. Other causes include water damage, an inoperative receiver module and signal interference. Dead Coin Battery Replace the battery in case your key fob is dead. Choose a new button battery with exactly the same size, voltage, and specification like the previous one. If the key fob was exposed to water, such as a splash of rain or salt water at the beach, it needs to be cleaned before it is able to be used again. A paper towel soaked in isopropyl alcohol or electronic cleaner can be the solution. If the key fob isn't working despite being not exposed to water, it could be due a malfunction in the receiver module or internal electronic chip. In these situations it is possible that reprogramming the key fob using an OBDII scanner can assist. Water Damage If your key fob has gotten submerged in a puddle or pool, or taken a trip down the wash machine, you may have some water damage. It's usually possible to restore it's functionality by removing the battery and scrubbing the circuit board with isopropyl alcohol. It's a good idea let the fob dry completely before putting in a new battery. If your key fob stopped working even after replacing the battery and changing the program, you could have a problem with the receiver module. You can find the instructions for changing the programming of most remote keys on YouTube or consult your owner's manual. You can also try resetting the car's onboard computer with the OBDII scan tool. Faulty Receiver Module The key fob has a chip that communicates with the vehicle's system. This chip will stop sending and receiving signals to the car if damaged. This can be caused by dropping the key fob, or due to exposure to water. If the key fob stops working after water exposure it may be possible to repair the issue by cleaning or cleaning the chip using isopropyl alcohol or an electronic cleaner. However, if the key fob continues to not respond after cleaning it, you can be sure that the module is faulty and must be replaced. A damaged receiver module may also cause the remote control key to not function. This is typically caused by electromagnetic interference. A defective electronic chip The chip that is embedded in the key fob is a vital component of the anti-theft system in your vehicle. It sends a signal to the immobiliser unit inside your car to inform it whether the key is legitimate. If the chip is damaged or damaged, your car won't start. A faulty chip can also be caused by interference signals from other objects or weather conditions that are bad, or transmitters on the same frequency near your vehicle. In this case you'll require a new key fob. Contacts with the battery may be damaged. The battery contacts inside the key fob are delicate and may be damaged with hard usage. If they are bent, or damaged, the fob will not transmit any signals to receiver modules in the vehicle. Modern fobs feature rubber seals to keep out water. Submerging them in water, even if just small splash or drizzle can harm the chip's electronic circuit. The key fob contains a chip that communicates with the vehicle's immobilizer system in order to allow it to start. This system utilizes cryptocoding systems in modern vehicles or the red key system in older models. The chip must be replaced if it's damaged. Faulty 12 Volt Battery A malfunctioning battery could cause the key fob to cease to function. The car's computer will not recognize the remote when this occurs. Before you replace the battery, test it with a voltmeter to determine its capacity. A fully charged battery should display 12.6 volts. If the reading falls dramatically, it is time to replace the battery. Install an electrical charge for a few seconds on the battery to determine its capacity. This will eliminate one percent of the surface charges. After that, measure the voltage. The longer the battery is able to hold its voltage more effectively, the greater its capacity. The ideal scenario is to keep it close to 12 volts several minutes. Radio Signal Faulty Radio Signal This is the most common reason for a keyfob that stops sending signals to the car. The battery can be replaced to fix this issue. fiat ducato replacement key is crucial to buy an identical battery voltage and dimensions as the original. Fobs can take a lot punishment, and aren't impervious to destruction. Contacts on batteries and buttons can be damaged through rough handling. Other objects or transmitters using the same frequency may also interfere with the signal. A light control panel in your home, for instance, may interfere with key fobs that have the same bandwidth. This can interfere with the remote control of your car. Faulty OBDII scan tool There are many reasons why a scanner could not function. Certain are more complicated than others. Professional scan tools enable mechanics to monitor the car's network, and run various self-tests. They can be huge time savers but they are also extremely expensive, and beyond the reach of most DIYers. If your OBD2 scan tool doesn't turn on, test the voltage at the terminals 16 (scantool power) and 4 (chassis earth). If they're all fine, a fuse may have blown. This is the most frequent reason for failure of the scan tool. It is usually easy to fix the issue by replacing the fuse blowing up.