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Citroen C4 Key Fob Replacement The Citroen C4 Picasso, a compact SUV for small families, has some truly innovative features. It's big enough to accommodate five people and is an excellent way to travel around town. Sometimes, a keyfob can cease to function due to pairing problems. If you follow the steps properly, this issue can be fixed easily. However, a professional equipped with special equipment is required for certain makes of vehicles. Dead coin battery The most frequent issue with remote key fobs is the battery being dead. However, it is a simple solution. It is all you need to do is replace the battery with a coin size. These batteries are available at the local auto store and resemble small silver coins. After you have replaced the battery, your car should be able unlock and lock. Interference is another reason why your key fob won't function. This could be due to numerous factors, like weather conditions, objects or other transmitters operating on the same frequency. If this happens, it could be necessary to take the ignition key and try again. The deprogramming of your key fob may be the reason for its inability to function. citroen key shell can happen if your key is exposed to water or it's not properly removed after replacing the battery. It is usually possible to restore the programming by following the instructions in the owner's manual. If you're unable to do this resolve the issue, you can contact a dealer or professional locksmith to help you. Water damage The Citroen C4 is a highly reliable vehicle, but it's a machine with hundreds of interconnected parts. Like every car it can suffer occasional breakdowns from time moment. In some cases, the issue can be fixed easily. However, in other instances it is possible to see a professional or seek assistance. The most frequent reasons for the C4 key fob not working are a dead coin battery water damage, signal interference and receiver module malfunctions. Sweat or moisture on the circuit board of the key fob can cause water damage. This can short the circuit, resulting in dead key fobs or battery drain. Keep your key fob away from the water and in the plastic bag. You can also test the voltage of your battery by using a multimeter. A successful test will give values between 12 and 13 If your battery fails to produce these values, then it may be defective. This means that you'll need to replace the battery. Faulty receiver module A faulty receiver module can cause the key fob to cease working. Citroen owners are often faced with this issue, since the keyfob must send an indication to the door handle to unlock and begin the vehicle. The key fob won't work if it fails to transmit the signal. It must be replaced. This can be done at a dealer for cars or by an expert mechanic. Citroen C4 keys can malfunction due to a variety reasons. This includes a dead coin battery, signal interference, water damage or a damaged electronic chip. To begin troubleshooting, test the key fob batteries and check for obvious signs. You can do this by opening the key fob then taking out the battery to get a better view. Replace the battery if it is empty. Make sure that the new battery is of the same size, voltage and specifications. Make sure that you fully connect the fob before replacing it. The battery is defective at 12 volts. Most modern cars come with key fobs that allow you to lock and unlock the vehicle from some distance. These devices transmit an electrical signal to the vehicle to control the locks. They are powered by batteries. Batteries can degrade over time. The good news is that the replacement battery is inexpensive and simple to install. You can use a flat-blade screwdriver to pry the fob open, or your owner's manual might contain instructions on how to do it. Replace the battery by using a different one of the same size and type as the original. Different kinds of batteries have different voltages, which can cause the fob to stop working or display a low battery alert. Also, make sure to position the battery in a way that the plus and minus signs match the orientation of the original. This ensures that the chip is receiving right signals. The issue could be caused by a defective receiver module. In this instance it is recommended that you contact the dealer for further assistance and repairs. Unpaired key requiring programming The remote for your car's key can fail to function due to various reasons. Fortunately, most of these problems are fixable quickly and easily. Most often it is a dead battery that is the cause. It can be replaced in a matter of minutes at most auto part shops. It is important that the new battery is installed correctly. Metal retaining clips need to be properly tightened and the contacts of the battery need to be cleaned. Another possibility is a faulty receiver module or signal interference. If the key fob fails to receive a clear signal from the receiver it might not be able to lock or unlock the doors and start the vehicle, or operate the hands-free system. In these situations you can reset the receiver by taking off the battery for a few minutes. Smart keys are more expensive and can cost up to $500 to replace. They contain an electronic security device that disables the immobiliser of your car. To avoid these costs it's best to have at least two working keys for your C4. The replacement remote key fob is repaired and tested using new internal components prior to being shipped to you.