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Citroen C3 Key Fob Troubleshooting Citroen key fobs might stop working due to a variety of causes. The most common reasons are worn buttons or poor contact with the battery, water damage, and receiver module issues. It is also recommended to check the battery's 12 volts. If the key fob can not unlock your car, you could be experiencing deprogramming. This happens when certain buttons send an email to the onboard computer, asking that the key be removed from its list of keys. Dead coin battery If your C3's keys fob has stopped working the first thing to check is if the battery is dead. Fobs have small coins-shaped batteries that can be replaced within a few minutes. You can find these at the general stores, home improvement stores, and a few auto parts stores. Be sure to buy the correct type. Batteries for fobs are usually CR2025 or CR2032 However you must consult the owner's manual of your vehicle to determine which type is required. Before you replace the battery, remove the button pad and rub it with cotton swabs or alcohol. These will help remove corrosion and clean the contacts, which are usually colored gold. After the contacts have been cleaned it is time to insert the new battery. Be careful not to mix the two types because they differ in their voltages and diameters. Next, you will need to assess the voltage of the battery. You can get a reliable reading using a multimeter, which is set to the battery's voltage range. If the battery's value is either above or below the threshold, then it must be replaced. You can also try to start your car using a spare key, however this might not be successful in all instances. If the issue continues, visit a CITROEN dealer with your V5 registration form and personal identifi cation documents. A CITROEN Dealer can retrieve the code of your vehicle's immobiliser and order new batteries. Water damage If the key fob is submerged, it could lose its signal. It is recommended to remove it as quickly as you can from the puddle or pool. After you've done this then use a cotton swab, isopropyl or electronic cleaner to clean the circuit board. If the key fob isn't working, it could be time to get another one. Another reason that is commonly cited for Citroen c3 remote control not working is signal interference. This can happen when there is an electrical field near the car or other transmitters operating on the same frequency. The key fob should start working once you are out of the area of interference. The Citroen C3 key fob may stop working because of worn buttons or signal interference issues, receiver module issues or a dead battery or a defective chip. If this happens, then you'll have to have it changed by a certified expert. This can be done by a skilled mechanic or at an Citroen dealership. If just click the up coming page is serious, you may need to replace the device. It's a simple and inexpensive fix. But you have to get it done quickly. The longer you wait to fix the issue, the more serious it becomes. It could be hazardous to passengers and you when the issue is not solved. Receiver Module Issue If your key fob is not working, the receiver module may have developed an issue. Water damage is among the many causes. This can happen if you drop your keys, or wash them. You can attempt to solve the issue by removing and cleaning the chip with isopropyl alcohol or electronic cleaner. This will stop the chip from becoming corroded. You can also reset the receiver module if you disconnect it from the battery, and wait 10 seconds. Then, reconnect the battery and repeat the process. If this doesn't resolve the issue, visit a dealership to get it replaced. Another reason your key may be unable to function is due interference. This can be caused either by other transmitters using the same frequency or by objects in your vehicle. If you're unable to fix the problem, you can visit a dealer to have your key fob reprogrammed. 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 the receiver will not recognize the car key and display a message that reads “key not recognized”. This is a problem that can be frustrating particularly when trying to start your car. Dead 12 volt battery It is possible that the key fob you have purchased has been damaged if it ceases to function after a change of batteries. This is particularly true if the key fob was dropped or stepped on. However, it can also happen following servicing on your car which requires the removal and reinstallation of panels. When these panels are removed, wires are exposed. If your fob is damaged, you might require a complete replacement. Another possibility is that the remote may be receiving interference from other devices or locations. This can make the RF signals weaker and hinder the car from recognizing the remote. You can reset the on-board computer in this scenario by disconnecting your 12-volt battery for 15 minutes. This will erase any remaining electrical charge and allow the system to restart over. It is essential to confirm the size and type of the battery prior to replacing it. If the replacement battery is too small or has a different voltage, it can damage the circuit board in the fob's key. It is also recommended to clean any corrosive materials from the chip in the fob before installing a new battery. The right battery type can ensure that the key fob is properly sealed and protected from moisture. After the key fob has been put back in place, it should function normal. In most instances, you will be able to use the second key to start your car even in the event that it displays a message saying “key is not detected.” It is possible to press the button a few times before it responds.