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https://www.g28carkeys.co.uk/fiat-car-key-replacements-near-me/

fiat 500 replacement key contain transponder chips that send an alert to your car to unlock the doors or start the engine The fob could stop working for a variety of reasons The most common cause of key fob failure is the battery of the coin is dead Other causes include water damage the receiver module is defective and signal interference Dead Coin Battery Replace the battery if your key fob has died Use a new button cell battery with the same voltage size and specification as the old one If the key fob was exposed to water such as rain or saltwater at the beach It must be cleaned before being used again The best solution is to use a paper towel soaked with isopropyl or electronic cleaner If the key fob has not been exposed to water but remains inoperable it could be a problem with the receiver module or an internal electronic chip Reprogramming the keyfob using an OBDII scan can help in these cases Water Damage You could have water damage if your key fob was submerged in a puddle pool or washing machine Its possible to get it working by taking the batteries off and cleaning the circuit board with rubbing alcohol Its best to allow the fob to dry completely prior to installing a new battery You could have a damaged module if your key fob stops working after replacing the battery or reprogramming You can find information on the reprogramming of most remote keys on YouTube or consult your owners manual You could also try resetting the cars onboard computer with the OBDII scan tool Faulty Receiver Module The key fobs chip is a chip that communicates with the vehicles system If the chip is damaged it cannot longer send and receive signals to the vehicle This could be due to dropping the key fob or through exposure to water If the key fob is not working after exposure to water it may be possible to fix it by cleaning the chip using isopropyl ethanol or electronic cleaner If the key fob doesnt respond to cleaning its likely that the module is in an issue and should be replaced A damaged receiver can cause the key to not work This is usually due to electromagnetic interference Faulty Electronic Chip The chip that is embedded in your key fob is a crucial component of the antitheft systems in your vehicle It transmits a message the immobiliser inside your car to inform it whether the key is genuine If the chip is damaged or broken the car wont start A defective chip can be caused by interference signals from other objects like bad weather conditions or transmitters on the same frequency in close proximity to your vehicle In this situation it is likely that a new fob would be required Contacts to the battery are not working properly The battery contacts of a key fob can be damaged by heavy usage If they are bent or broken the fob wont transmit any signals to receiver modules inside the vehicle Modern fobs feature rubber seals to keep out water Submerging them in water even if its only the slightest splash or drizzle could damage the chips electronic circuit The key fob contains chips that communicate with the vehicles immobilizer in order to activate it It uses the old red keys that were used in older vehicles or the cryptocoding system found in newer cars This chip needs to be replaced if malfunctioning Faulty 12 Volt Battery A malfunctioning battery could cause the key fob not to work If this happens the cars computer system wont recognize that the remote is in the vehicle Before you replace the battery you should test it with a an voltmeter to gauge its capacity A fully charged battery should read 126 volts If the reading decreases significantly it is time to replace the battery To test the batterys power place an electrical load on it for a couple of minutes This will take away 1percent of the surface charges After that take the voltage again The better the batterys capacity and the longer it can keep its voltage Ideal is to hold close to 12 volts during several minutes The radio signal is not working properly Radio Signal This is the most common reason for the key fob to stop sending signals to the car The battery can be replaced to solve this issue It is however important to buy a new battery with the same voltage and size as the original one Fobs arent indestructible and can be damaged by a lot The battery contacts and buttons are delicate and are susceptible to being bent or damaged by rough usage Other objects or transmitters using the same frequency could also disrupt the signal A light control panel in your home for example may interfere with key fobs that use the same bandwidth This could interfere with the remote control of your car Faulty OBDII scan tool There are many reasons why scanners dont work Certain are more complicated than others Professional scan tools let mechanics to monitor the cars networks and run various selftests These can be real timesavers but they are also extremely expensive out of the reach of most DIYers If your OBD2 scan tool wont power on check voltage at terminals 16 scantool power and 4 chassis earth If these are both present its likely that a fuse is blowing This is the most common reason for failure of the scan tool It is typically simple to fix the issue by replacing the fuse blowing up