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Fiat Panda Key Fob Replacement Fiat Panda keyfobs are equipped with a transponder which transmits an indication from the fob to the car to unlock doors or turn on the motor. However, the fob may be inoperable due to various reasons. The most frequent cause of key fob malfunction is the battery of the coin is dead. Other reasons include water damage, an inoperative receiver module and signal interference. Dead Coin Battery If your key fob battery has gone out of service, the first step is to replace it. Use a button cell battery that has the same voltage, size, and specifications as your previous one. If the key fob has been exposed to water, like a splash of rain or salt water at the beach, it needs to be cleaned before it is able to be used again. The best solution is to use a paper towel soaked with isopropyl or an electronic cleaner. If the key fob has not been exposed to water but it is still not working, there may be an issue with the receiver module or an internal electronic chip. In these situations you can reprogramme the key fob with an OBDII scanner might help. Water Damage It is possible to get water damage to your key fob if it was submerged in a puddle, pool or washing machine. It's possible to get it back in working order by taking the batteries off and cleaning the circuit board with rubbing alcohol. It is a good idea to allow the fob to dry completely before putting in a brand new battery. You may have a faulty module in the event that your remote stops working after replacing the battery or updating. There are instructions for changing the programming of most remote keys on YouTube or consult the owner's manual. replacement fiat 500 key can also reset your computer of your car using the OBDII scanner tool. Faulty Receiver Module The key fob has a chip which communicates with the vehicle's system. If this chip becomes damaged, it will be unable to 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 stopped working due to water exposure it is possible to fix it if clean the chip with electronic cleaner or isopropyl ethanol. If the key fob doesn't respond to cleaning, it's possible that the receiver module has an issue and should be replaced. A defective receiver can cause the key to not work. This is often caused by electromagnetic interference. Faulty Electronic Chip The electronic chip that is in your key fob plays a vital role in the anti-theft security system of your car. It sends a signal to the immobiliser inside your car to tell it that the key is valid. If the chip is damaged or damaged, your car won't start. A damaged chip could be caused by interference from objects, bad weather or transmitters in the vicinity of your vehicle. In this case, you will need a new key fob. Contacts to the battery are not working properly. The battery contacts on the fob's battery can be damaged by heavy usage. If they are damaged or bent, the key fob will not send any signals to the receiver modules in the car. Modern fobs are designed with rubber seals that keep out water. Submerging them in water, even if it's just a light drizzle or splash, can damage the chip's electronic components. The key fob contains an electronic chip that communicates with the vehicle's immobilizer system in order to activate it. The system is based on the red keys of older vehicles as well as the cryptocoding system that is used in newer cars. If the chip is damaged it must be replaced. A faulty 12 Volt battery A damaged battery can cause the key fob to stop working. The car's computer may not recognize the remote when this happens. Test the battery using the voltmeter before replacing it to determine its capacity. A fully charged battery should display 12.6 volts. If the reading falls dramatically then it's time to replace the battery. Place an electrical load for a short period of time on the battery to test its capacity. This will take away approximately 1% of the surface charge. Then measure the voltage again. The longer a battery is able to hold its voltage more effectively, the greater its capacity. Ideal is that it stays close to 12 volts for several minutes. Problems with Radio Signal This is the most common reason behind a key fob that stops sending signals to the car. This problem can be solved by replacing the battery. However, it is crucial to choose a battery that is the same voltage and size as the original one. Fobs are not indestructible and are susceptible to damage. Battery contacts and buttons can be damaged through rough handling. Other transmitters or objects operating on the same frequency could also interfere with the signal. A light-control panel at your home, for instance could interfere with key fobs using the same bandwidth. This could affect the remote control of your car. Faulty OBDII Scan Tool There are a number of reasons why a scan tool could not work. Certain are more complicated than others. Professional scan tools allow mechanics to look over the car's networks and perform a variety of self-tests. These can be real time savers but they can be expensive, and out of the range of most DIYers. If your OBD2 scanner won't start, check the voltage on terminal 16 (scan tool power) and terminal 4 (chassis ground). If these are both present, it's likely that a fuse is blowing. This is among the most frequent reasons for failure of the scanner. It is generally easy to fix the issue by replacing the fuse blowing up.