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Citroen C3 Key Fob TroubleshootingCitroen key fobs may malfunction due to a variety of causes. These include worn buttons, poor contact with the battery, water damage and receiver module problems. You should also examine the battery’s 12 volts.Deprogramming could be the cause the key fob’s inability to unlocking your car. This occurs when certain button actions send a signal to the onboard computer to remove the key from its list of access.Dead coin batteryIf your Citroen C3’s key fob no longer works, the first thing to check is if the battery is dead. Fobs are small coin-shaped batteries which can be replaced in a few minutes. They are available at home improvement stores, and a few auto parts stores. Make sure you buy the correct model, however. The majority of fobs require CR2025 or CR2032 However, you should consult your owner’s manual to find out the specific type of battery your vehicle requires.Remove the button pad, and use cotton swabs and alcohol to clean it. This will remove any corrosion and clean the contacts, which are usually gold-colored. After the contacts have been cleaned, you can add the new battery. Be careful not to mix the two kinds because they have different voltages and diameters.Next, you will need to determine the voltage of the battery. You can get a reliable reading using a multimeter, which is calibrated to the battery’s voltage range. If the battery has the value that is either above or below its threshold, it is required to be replaced. You may also try the car’s start using an extra key, but this may not work in all situations. If the problem persists visit a CITROEN dealership with your V5 registration number and personal identification documents. A CITROEN Dealer can obtain the code for your vehicle’s immobiliser and can order a new battery.Water damageIf the key fob is submerged, it can lose its signal. If this happens, it’s a good idea to remove it of the pool, puddle or washing machine as fast as possible. After that using an swab of cotton and isopropyl or electronic cleaner to dry the circuit board. If the key fob still doesn’t function, it might be time to purchase an additional one.Another common reason for Citroen c3 remote control not working is signal interference. This can occur when there is a strong electrical field close to the car, or from other transmitters on the same frequency. Once citroen dispatch remote key replacement leave the interference area the key fob will restart working.The Citroen C3 key fob could be inoperable due to worn buttons, signal interference issues, receiver module issues or a dead battery or a malfunctioning chip. It will need to be changed to a new program if this happens. This can be accomplished by a qualified mechanic or at a Citroen dealership. If the issue is significant it’s time to have it replaced. This is a fairly easy and cost-effective fix, however it’s crucial to act fast. The longer you take to correct the issue the worse it will become. If the issue isn’t resolved it could pose a danger for the passengers and yourself.Issue with the Receiver moduleIf your key fob is not functioning the receiver module could have developed an issue. This could be due to several things that include water damage. This can happen if you lose your keys, or wash them. You can attempt to resolve the issue by removing and cleaning the chip with isopropyl ethanol or electronic cleaner. This will prevent corrosion of the chip.You can also reset the receiver module when you disconnect it from the battery and wait 10 seconds. You can then reconnect the battery and repeat the process. If this fails to fix the issue, go to a dealer to have it replaced.Interference can also cause your key to stop working. It can be caused by other transmitters that operate on the same frequency or by objects in your vehicle. If you’re not able to fix the issue, visit a dealer and have your key fob reset.The key fob contains a short-range radio transmitter/radio-frequency identification (RFID) chip and antenna, which sends a distinct coded signal to the receiver module in your car. If the signal isn’t in order the receiver module won’t recognize the key and will display a message that says “Key Not Detected. This could be a very frustrating issue, particularly when trying to start your vehicle.Dead 12 volt batteryIf your key fob ceases working after changing the battery It could be damaged. This is particularly true in the event that the key fob was dropped or stepped on, however it also can occur after maintenance on your vehicle that requires the removal and reinstallation of panels. Wires become exposed when panels are removed. If your fob is damaged, you may require a complete replacement.Another possibility is that the fob is receiving interference from other devices or locations. This could make RF signals weaker and prevent the car from being able to recognize the remote. If this happens you can reset the on-board computers by disconnection of the battery at 12 volts for around 15 minutes. This will erase any remaining electrical energy, allowing the system to reboot.It is crucial to determine the size and quality of the battery prior to replacing it. If the battery you replace is too small or has different voltage, it could harm the circuit board in the fob’s key. Before installing a battery, you should clean the chip of the fob to eliminate any contaminants that could cause corrosion. The proper type of battery will ensure that the key fob is properly sealed and protected against moisture. Once the key fob’s been installed, it should work normally. In most instances, you can use the second key to start your vehicle even if it shows an error message that reads “key not recognized.” It is possible to press the button several times before it responds.