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Citroen C3 Key Fob Troubleshooting Citroen key fobs may cease to function due to a number of reasons. They can be due to worn buttons, poor contact with the battery, water damage and receiver module issues. Make sure the batteries are 12 volts. Deprogramming could be the cause the key fob's inability to unlocking your car. This happens when certain button sequences send an alert to the computer in the car to delete the key from its list of access. Dead coin battery If the fob that you use to open the door on your Citroen C3 is no longer working, check first if the battery has died. The batteries contained in the fobs are small round coins that can be easily changed in a matter of seconds. They can be found in general stores, home improvements stores, and auto parts stores. Make sure you buy the correct model, however. Batteries for fobs are typically CR2025 or CR2032 However you should check the owner's manual for your vehicle to determine which type is required. Remove the button pad and then use cotton swabs or alcohol to clean it. These will help remove corrosion and clean the contacts which are usually colored gold. After the contacts have been cleaned then you can put in the new battery. Be careful not to mix up the two types as they differ in voltage, diameters and shapes. The next step is to test the battery's voltage. You can get a reliable reading using a multimeter which is calibrated to the battery's voltage range. If the battery shows a value above or below its threshold, it needs to be replaced. Try starting your car with an extra key, but this might not work in all cases. If the issue persists you should visit a CITROEN dealer with your V5 registration documents and personal identification documents. A CITROEN Dealer can locate the code for your vehicle's immobiliser and order an upgrade to your battery. Water damage When the key fob gets under water, it could lose its signal to the car. It is advised to remove it as quickly as possible from the puddle or pool. Once you do, dry out the circuit board as well as you can with a cotton swab that has been dipped in isopropyl ethanol or electronic cleaner. If the key fob isn't working, it could be time to invest in an entirely new one. Another reason that can be cited for Citroen c3 remote control not working is signal interference. This can happen when there is an electrical field close to the car or other transmitters operating on the same frequency. The key fob will begin working again after you are out of the area of interference. The Citroen C3 key fob may be inoperable due to worn buttons problems with signal interference, receiver module problems, a dead 12-volt battery or a defective chip. If this happens, you'll require it to be reset by a professional. This can be done either by a qualified mechanic, or a Citroen dealer. If the issue is serious the vehicle will need to be it replaced. It's a fairly simple and inexpensive fix. But you must be quick to act. The longer you delay to resolve the issue, the more serious it will get. If the issue isn't fixed it could pose a danger for the passengers and yourself. simply click the up coming internet site If your key fob isn't functioning, the receiver module may have developed an issue. This can be caused by various factors that include water damage. This could happen if you drop your keys or wash them. You can try to resolve the issue by removing and cleaning the chip using isopropyl ethanol or electronic cleaner. This will stop the chip from corrosion. You can also reset the receiver module by disconnecting it from the car battery and letting it sit for 10 seconds. Then reconnect the battery to the vehicle and repeat the process. If this does not resolve the issue, take it to a dealership to be repaired. Another reason your key could not work is due to interference. This can be caused either by other transmitters using the same frequency or objects inside your vehicle. If you are unable to fix the issue, you can take your key fob to a dealer to be 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 accurate it will not recognize the car key and display a message that reads “key not recognized”. This can be a frustrating issue, especially if you're trying to start your vehicle. Dead 12 volt battery If your key fob stops working after an upgrade to a battery, it may be damaged. This is especially common if the key fob was dropped or stepped upon, but it could also occur following maintenance on your vehicle which requires the removal and reinstallation of panels. When these panels are removed, the wires are exposed. If your fob has been damaged, it may need to be replaced entirely. Another possibility is that the fob is getting interference from other devices or places. This can make RF signals weaker and block the car's recognition of the remote. If this happens you can reset the computer systems on board by disconnecting the battery at 12 volts for about 15 minutes. This will remove any remaining power and let the system start from scratch. It is essential to confirm the size and type of the battery before replacing it. If the battery you replace is too small or has a different voltage, it can damage the circuit board inside the fob's key. Before installing a battery you should clean the chip inside the fob to remove any contaminants that could cause corrosion. The proper type of battery will ensure that the key fob is sealed and protected against moisture. After the key fob has been replaced, it should work normal. It is possible to use the second key if your car displays a message that says “key not found.” You may need to press the button a few times before it responds.