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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 spacious enough for five people and is a great way to travel around the city. Sometimes the key fob stops functioning due to pairing issues. If you follow the steps correctly, the issue can be fixed quickly. However, a professional equipped with specific equipment is required for specific makes of vehicles. Dead coin battery The most frequent issue with remote key fobs is the battery being dead. However, it is an easy fix. All you have to do is replace the coin battery. These batteries are available at your local auto retailer and look similar to small silver coins. After you have replaced the battery, your vehicle should be able to unlock and lock. Interference is another reason why your key fob won't function. This can be caused by many factors, such as weather conditions, objects, or other transmitters on the same frequency. If this happens, 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 that the fob has been deprogrammed. This can happen when the key is exposed to water or if it isn't removed correctly after replacing the battery. You can usually repair the programming by following the directions in the owner's manual. If you're unable to accomplish this, you may seek out a professional locksmith or dealer to help you. Water damage The Citroen C4 is a highly reliable vehicle, but it's a machine with hundreds of interconnected parts. As with all cars it could experience periodic breakdowns from time to moment. In some cases, the issue is easily resolved. In other cases it is necessary to contact a professional for assistance or see an expert. The most frequent reasons the C4's key fob stops working include a dead coin battery, water damage, signal interference, and receiver module issues. Sweat or moisture on the circuit board of the key fob might cause water damage to the circuit board of the key fob. The circuit could be prone to short, leading to the battery draining or dead key fob. To prevent this from happening, make sure to keep your key fob out from the water or put it in a plastic bag prior to using it. A multimeter can be used to check the voltage in your battery. A successful test will reveal values between 12 and 13. If your battery doesn't produce these numbers, it could be defective. This means you'll have to replace your battery. The receiver module is not working properly. A defective receiver module could cause the key fob's functionality to cease. This is a common problem for Citroen owners, as the key fob has to transmit a signal through the door handle to open and start the vehicle. The key fob won't work if it fails to transmit the signal. It has to be replaced. This is typically handled by a mechanic or a dealership. Citroen C4 keys can malfunction for a variety. It could be due to 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 evidence of damage. This can be done by opening the keyfob and removing its battery to take a closer view. Replace the battery if it has empty. Make sure that the new battery has the same size, voltage, and specification. Make sure you connect the fob before replacing it. Poor 12 Volt Battery A majority of modern cars come with key fobs that allow you to lock and unlock your vehicle from a distance. These devices send signals to the car to control the locks. They use battery power to operate. However, batteries can fail over time. G28 is that the replacement battery is affordable and easy to replace. You can use a screwdriver with a flat blade to pry open the battery or the owner's manual might contain instructions on how to do it. Replace the battery with a battery of the same size and type as the original. Different types of batteries come with different voltages, which can cause the fob's function to cease or display a low battery warning. Be sure to align the battery in such that the positive and negative indicators match the original orientation. This will ensure that the chip is receiving the correct signals. The issue could be due to a malfunctioning module. If this is the case you should call your dealer to get further diagnostics and repairs. Unpaired keys that require reconfiguring Car key remotes might fail to function for many reasons. Fortunately, the majority of these problems can be fixed quickly and easily. The most common reason is the battery in a coin that is dead, which can be replaced in just a few minutes at many auto parts stores. However, it's important to ensure that the new battery is properly installed. Metal retaining clips must be properly tightened, and the contacts of the battery must be cleaned. A defective receiver module or signal interference is a second possibility. If the key fob does not receive a strong signal from the receiver it might not be able to unlock or lock the doors either, start the vehicle or operate the hands free system. In these cases you can reset the receiver by dismantling the battery for several minutes. Smart keys are more expensive and cost up to $500 to replace. They contain a security chip that disables the immobiliser in your vehicle. To avoid these high costs it's a good idea to have at least two keys that work for your C4. This key fob replacement is refurbished with new internal components and tested before being shipped to you.