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Citroen C4 Key Fob Replacement The Citroen C4 Picasso, a compact SUV for small families It has some really innovative features. It has decent space for five people, and is an ideal vehicle to travel around town. Sometimes, a keyfob can cease to function due to pairing problems. This problem may be fixed if instructions are followed correctly. However, a professional with specialized equipment is needed for specific makes of vehicles. Dead coin battery The most frequent issue with remote key fobs is an inactive battery. It's an easy fix, however. It is all you need to do is replace the battery in the shape of a coin. The batteries look like small silver coins, and can be purchased at your local automotive store. Once you have replaced the battery, you should be capable of locking and unlocking your car. Another reason your key fob may not function is due to interference. This can be caused by many factors, such as weather conditions, objects, or other transmitters on the same frequency. If this occurs it could be necessary for you to remove the ignition key and try again. Another reason why your key fob won't work could be that the device is not programmed properly. This can happen if the key is exposed to water or it's not properly removed after replacing the battery. Typically, you can repair the programming of your car by following the steps in the owner's guide. If you are unable to do this, contact a professional locksmith dealer to help you. Water damage Citroen C4 has a high degree of reliability, but it's still a complicated machine that has hundreds of interconnected parts. It's not uncommon for a C4 from Citroen to have a breakdown. In some cases it is easy to get the issue resolved. In some cases it is necessary to contact assistance or visit a mechanic. The most common causes of the C4 key fob not functioning are an unresponsive coin battery, water damages, signal interference and receiver module issues. The moisture or sweat that accumulates on the circuit board of the key fob might cause water damage. This can cause the circuit to short, leading to an energy loss or dead key fob. Keep your key fob out of the water and in an airtight bag. A multimeter can be used to test the voltage of your battery. A successful test will produce values that range from 12 to 13 If your battery doesn't produce these values, it may be defective. This means that you'll require replacing the battery. The receiver module is not working properly. citroen berlingo key fob can cause the keyfob to cease to function. This is a common problem for Citroen owners, as the key fob has to transmit a signal through the door handle to allow the door to be opened and start the car. If the key fob fails to transmit this signal, it will not work and must be replaced. This is usually done by a mechanic or a dealer. Citroen C4 keys can malfunction due to a variety reasons. This can be a dead coin-cell battery or water damage or signal interference. The first step to troubleshoot is to test the key fob's batteries and to check for obvious indications of damage. You can do this by opening the key fob and then removing the battery to gain a better view. If you discover a depleted battery replace it with a new one. Make sure that the new battery is of the same size, voltage and specifications. Make sure that you fully fix the fob in place prior to replacing it. Faulty 12 volt battery A lot of newer vehicles have key fobs that let you to lock or unlock the vehicle remotely. These devices send a signal the car to control the locks and use battery power to operate. However, batteries can fail over time. The good part is that the replacement battery isn't expensive and simple to replace. You can use a screwdriver with a flat blade to open the fob or your owner's manual might have instructions on how to do it. Replace the battery with a new one that is the same type and size as the original. Different types of batteries have different voltages, which can cause the fob to cease working or display a low battery alert. Remember to also orient the battery in a way that the plus and minus marks match the orientation of the original. This will ensure that the chip receives the proper signals. It is also possible that the issue could be caused by a faulty receiver module. In this case, you should contact your dealer to get further diagnostics and repairs. Unpaired keys that require reconfiguring The remote for the car key could stop working due many reasons. Most of these problems are quick and easy to fix. The most common reason is a dead coin battery, which can be replaced in just a few minutes at the majority of auto parts stores. It is crucial that the new battery be installed correctly. Metal retaining clips should be properly tightened and the battery's contact points should be clean. A malfunctioning receiver module or signal interference is a second possibility. If the key fob doesn't receive a clear signal from the receiver, it may not be able unlock or lock the doors either, start the vehicle or operate the hands-free system. In these cases, you should try to reset the receiver by disconnecting the battery for a few minutes. Smart keys are more expensive and cost as high as $500 to replace. They contain an electronic security device that disables the standard immobiliser on your vehicle. To avoid these costs, it's a good idea to have at minimum two working keys for your C4. The replacement remote key fob has been restored and tested with new internal components before being sent to you.