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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a small SUV for families that has some genuinely innovative features. It's spacious enough for five people and is an excellent vehicle for getting around town. Sometimes the key fob ceases working due to pairing issues. This problem may be resolved if instructions are followed properly. However, a professional with specialized equipment is needed for specific models of vehicles. Dead coin battery A dead battery is the most frequent problem that affects remote keys. However, it is a simple solution. It is all you need to do is replace the battery in the shape of a coin. These batteries resemble tiny silver coins, and can be purchased at the local auto store. After you replace the battery, your car should be able of unlocking and lock. Another reason why your key fob might not work is due to interference. It could be caused by many factors, such as objects, weather conditions or other transmitters operating on the same frequency. If this occurs, it may be necessary for you to unplug the ignition key and try again. Another reason why your key fob might not work could be because the fob has been deprogrammed. This could occur when the key has been exposed to water or the battery was not removed correctly after the key is replaced. Usually, you can restore the car's programming by following the instructions provided in the owner's manual. If you are unable to do this, you can ask a professional locksmith or dealer to assist you. Water damage Citroen C4 has a high degree of reliability, but it is still a complex machine with hundreds interconnected parts. It's not uncommon for a C4 from Citroen to have a breakdown. In some cases the problem is easily resolved. However, in other instances it is possible to see a mechanic or seek assistance. The most common reasons for the C4 key fob not functioning are the battery being dead, water damages, signal interference and receiver module problems. Sweat or moisture on the circuit board of the key fob might cause water damage. The circuit could be prone to become shorted, which can lead to the battery draining or even a dead key fob. Keep your key fob away from the water and in the plastic bag. A multimeter can be used to measure the battery's voltage. A successful test will yield values that range from 12 to 13 If your battery fails to produce these values, then it may be defective. This means you'll need to replace the battery. The receiver module is not working properly. A defective receiver can cause the keyfob to cease working. This is a common problem for Citroen owners, as the key fob is required to send a signal through the door handle to unlock and start the vehicle. If the key fob is unable to transmit this signal, it won't work and needs to be replaced. This is typically handled by a mechanic or a dealership. There are a variety of issues that could happen with your Citroen C4 key fob. This includes a dead coin battery, water damage, signal interference or a damaged electronic chip. To begin troubleshooting the issue, test the batteries of the key fob, and look for obvious signs. You can do this by opening the key fob and removing the battery for a better view. If you spot a depleted battery Replace it with a new one. Make sure the new battery has the same size, voltage and specification. Also, make sure that the fob is fully snapped together before replacing it. Faulty 12 Volt Battery A majority of modern cars have key fobs that let you to lock or unlock your vehicle remotely. These devices transmit signals to the vehicle that controls the locks. They are powered by batteries. However, the batteries may fail over time. G28 Car Keys is that the replacement battery isn't expensive and simple to install. You can use a screwdriver with a flat blade to pry open the battery or your owner's guide might have instructions on how to do it. Replace the battery with a new one that is 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 warning. Be sure to position the battery in such that the positive and negative symbols correspond to the original orientation. This will ensure that the chip is receiving the correct signals. The problem could also be caused by a faulty module. In this instance it is recommended that you contact the dealer for further diagnosis and repairs. Keys that are not paired require changing the program The remote for the car key may stop working due to several reasons. Most of these issues are easily and quickly repaired. The most frequent cause is an old coin battery, which can be replaced in a few minutes at most auto parts stores. But, it's crucial to ensure that the new battery is properly installed. Metal retaining clips must be tightened in a proper manner and the battery's contacts should be clean. A malfunctioning receiver module or signal interference is a second possibility. If the key fob does not receive a strong signal from the receiver it could not lock or unlock the doors and start the vehicle, or operate the hands free system. In these situations, you can reset the receiver by dismantling the battery for several minutes. Smart keys are more expensive and can cost up to $500 to replace. They have an electronic security device that disables the standard immobiliser of your vehicle. It is recommended to keep two keys working for your C4 in order to avoid these high costs. This replacement remote key fob is refurbished and tested with new internal components prior to being shipped to you.