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Fiat Panda Key Fob ReplacementFiat Panda key fobs contain transponder chips that send an alert to your car to open the doors and start the engine. However, the fob may not function due to a variety of reasons.The most common cause of key fob failure is an inoperable coin battery. Other causes include water damage a faulty receiver module, and signal interference.Dead Coin BatteryReplace the battery if your key fob is dead. Make use of a new button battery that is exactly the same size, voltage and specifications as the previous one.If the key fob was exposed to water, such as a splash of rain or salt water on the beach, it needs to be cleaned before it can be used again. The trick is to use a paper towel soaked with isopropyl or an electronic cleaner.If the key fob has not been exposed to water but isn’t working it could be because of an issue with the receiver module or an internal electronic chip. Reprogramming the keyfob through an OBDII scan could help in these instances.Water DamageThere could be water damage to your key fob if it was submerged in a pool, puddle or washing machine. It’s usually possible to get it working again by taking off the battery and then scrubbing the circuit board with isopropyl alcohol. It is best to let the fob completely dry before putting in the battery.It could be that you have a defective module in the event that your remote stops working after replacing the battery or changing the programming. There are reprogramming guidelines for most vehicles’ 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 ModuleThe key fob contains an electronic chip that communicates with the car’s system. If this chip becomes damaged, it can no longer transmit and receive signals to the vehicle. This can be caused by dropping the key fob, or by water exposure. If your key fob stopped working due to water exposure and you are unable to fix it if clean the chip with electronic cleaner or isopropyl alcohol.If the key fob won’t respond to cleaning, it is possible that the component has an issue and must be replaced. A damaged receiver module may also cause the remote control key to cease functioning. This usually happens due to electromagnetic interference.Faulty Electronic ChipThe electronic chip in the key fob is a vital component of the anti-theft system in your car. It transmits a message to the immobiliser inside your car to tell it whether the key is legitimate. If the chip is damaged or damaged, your car will not start.A malfunctioning chip could be caused by interference signals from objects or weather conditions that are bad, or transmitters operating on the same frequency near your vehicle. In this case you’ll require an entirely new key fob.g28carkeys.co.uk contactsThe battery contacts of the fob’s key can be damaged through heavy use. If they are bent or broken the fob will not transmit any signals to the receiver modules inside the car.Modern fobs come with rubber seals to keep out water. In the event of submerging them in water, even if it’s only the slightest splash or drizzle could harm the chip’s electronic circuit.The key fob has a chip that communicates with the vehicle’s immobilizer system in order to allow it to start. This system utilizes cryptocoding systems in the latest vehicles as well as the traditional red key system used in older ones. This chip needs to be replaced if faulty.Problems with 12 Volt BatteriesA faulty battery may cause the key fob to function. When this happens the car’s computer cannot recognize that the remote is in the vehicle.Test the battery with an voltmeter prior to replacing it to determine its capacity. A fully charged battery will read 12.6 volts. If the reading falls significantly, it’s time to replace it.Install an electrical charge for a few moments on the battery to gauge its capacity. This will take away about 1% of the surface charge. Then, test the voltage again. The longer a battery is able to hold its voltage and the higher its capacity. Ideally, it will remain at 12 volts or less for several minutes.Radio Signal Faulty Radio SignalThis is the most typical cause of a key fob that ceases to send signals to the car. The battery can be replaced to fix this problem. But, it is essential to buy a new battery with the same size and voltage as the original one.Fobs are not indestructible and can withstand a lot. Contacts on batteries and buttons can be damaged through rough handling.The signal could also be impacted by other transmitters or objects that operate on the same frequency. A light-control system in your home, for instance could interfere with key fobs which use the same bandwidth. This could affect the remote control in your car.Incorrect OBDII Scan ToolThere are many reasons why a scan tool could not work. Some are more complex than others.Professional scan tools allow a mechanic to examine the car’s systems and run a variety of self-tests. They can be huge time savers but they can be expensive, and beyond the reach of most DIYers.If your OBD2 scanner isn’t turning on examine the voltage at terminal 16 (scan tool power) and terminal 4 (chassis ground). If both are in good condition the chances are that a fuse has been blown. This is the most typical reason for failure of the scan tool. It is generally easy to fix the issue by replacing the fuse that has blown.