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Fiat Panda Key Fob Replacement Fiat Panda keyfobs are equipped with a transponder, which sends signals from the fob to the car to unlock doors or turn on the motor. The fob can stop functioning for a variety. A dead battery for the coin is the most common reason for key fob malfunctions. fiat ducato key www.thekeylab.co.uk include water damage a faulty receiver module and signal interference. Dead Coin Battery If the battery in your key fob has failed, the initial thing to do is replace it. Use a new button cell battery with the same voltage, size and specifications 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 method is to use a paper towel that has been soaked in isopropyl or electronic cleaner. If the key fob doesn't working despite not being exposed to water it could be due to a glitch in the receiver module or in the internal electronic chip. Reprogramming the keyfob through an OBDII scan can help in these instances. Water Damage If your key fob's battery has taken an immersion in the puddle or pool or even a trip down the wash machine, you might have some water damage. You can usually get it back to working by taking the battery off and cleaning the circuit board with isopropyl alcohol. It is recommended to allow the device to completely dry before putting in batteries. If your key fob has stopped working, even after replacing the battery and programming it again, you might have a faulty receiver module. You can find instructions for changing the programming of most remote keys on YouTube, or consult your owner's manual. You can also reset your car's computer using the OBDII scanner tool. Faulty Receiver Module The key fob is equipped with a chip that connects to the car's system. If this chip becomes damaged, it can no longer transmit or receive signals to the vehicle. This could be due to dropping the key fob, or through exposure to water. If your key fob isn't functioning due to exposure to water and you are unable to fix it by attempting to clean the chip using electronic cleaner or isopropyl ethanol. If the key fob won't respond to cleaning, it's possible that the component has issues and needs to be replaced. A damaged receiver module may also cause the remote control key to stop working. This is often caused by electromagnetic interference. A defective electronic chip The electronic chip inside the key fob is a crucial component of the anti-theft system in your vehicle. It transmits a signal to the immobiliser device in your vehicle to tell it whether the key is legitimate. Your car won't start if the chip is damaged. A malfunctioning chip could be caused by interference signals from objects, bad weather conditions or transmitters operating on the same frequency as your car. In this scenario, you will need a new key fob. Contacts of the battery may be damaged. The battery contacts of a key fob can be damaged by heavy usage. If they're bent, or damaged, the fob will not send any signals to the receiver modules in the vehicle. Modern fobs come with rubber seals in order to keep out water. Submerging them in water, even if it's only a light drizzle or splash can harm the chip's electronic components. The key fob has chips that communicate with the vehicle's immobilizer in order to allow it to start. The system relies on cryptocoding systems in vehicles that are more modern as well as the traditional red key system used in older models. If the chip is damaged it must be replaced. Poor 12 Volt Battery A defective battery can cause the remote to stop working. The car's computer may not recognize the remote if this occurs. Test the battery using the voltmeter before replacing it to determine its capacity. A fully charged battery should read 12.6 volts. If the reading drops significantly, it is time to replace the battery. To test a battery's capacity test the battery's capacity by placing an electrical load on it for a couple of minutes. This will take off approximately 1% of the charge on the surface. Then measure the voltage again. The greater the battery's capacity and the longer it can maintain its voltage. The ideal scenario is to keep it close to 12 volts several minutes. Problems with Radio Signal This is the most common reason behind a key fob that ceases to send signals to the car. This issue can be resolved by replacing the battery. However, it is important to select a replacement battery that is the same voltage and size as the original one. Fobs are not indestructible and can be damaged by a lot. The battery contacts and buttons are delicate, so they can get bent or broken with rough usage. Other transmitters or objects using the same frequency can interfere with a signal. For instance, a lighting control panel close to your home can transmit interference using the same frequency as key fobs use. This could affect the remote control in your car. Faulty OBDII scan tool There are a variety of reasons why scanners don't perform. Some are more complex than others. Professional scan tools let mechanics to monitor the car's network, and run various self-tests. These tools can save a lot of time, but are costly and are out of reach for most DIYers. If your OBD2 scan tool won't power on, check voltage at terminals 16 (scantool power) and 4 (chassis earth). If they're both in good shape the chances are that a fuse has failed. This is the main reason for failures of the scanner. It is usually easy to fix the issue by replacing the fuse that was blown.