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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a compact SUV that is small enough for a family, and has some genuinely innovative features. It's spacious enough to accommodate five people, and is an ideal vehicle to travel around town. Sometimes, a keyfob can not work due to pairing issues. If you follow the steps correctly, the issue can be easily fixed. For certain vehicles, a technician will be required to use specialized tools. Dead coin battery A dead battery is the most common issue with remote key fobs. However, it's an easy fix. All you need to do is replace the battery in the coin. The batteries look like small silver coins and can be purchased at your local automotive store. After you have replaced the battery, your car should be able unlock and lock. Interference is a different reason for why your key fob's device may not work. This can occur due to many factors, such as weather conditions, objects, or other transmitters on the same frequency. If this happens, it may be necessary to remove the key from the ignition and try again. The deprogramming of your key fob may also be the cause for the key's inability to function. This could happen if the key is exposed to water or it is not removed properly after replacing the battery. You can usually repair the programming by following the steps in the owner's manual. If you are unable to accomplish this, you may contact a professional locksmith dealer for assistance. Water damage The Citroen C4 is a highly reliable vehicle, but it's an automobile with a lot of interconnected parts. Like any other car, it may suffer an issue from time to the time. In some cases, the issue is easily resolved. But in others you may need to see a mechanic or seek assistance. The most common causes of the C4 key fob not working are an unresponsive coin battery, water damage, signal interference and receiver module problems. Water damage can result from sweat or moisture on the circuit board. This could cause a short circuit in the circuit and cause the key fob becoming dead or causing battery drain. To avoid this happening, make sure to keep your key fob from water or put it in a plastic bag prior to using it. You can also check the voltage of your battery by using a multimeter. A successful test will show numbers between 12 and 13. If your battery isn't producing these numbers, it may be defective. This means you'll have to replace the battery. A malfunctioning receiver module A defective receiver can cause the key fob to stop working. Citroen owners are often faced with this issue because the keyfob must send a signal to the door handle to unlock and start the vehicle. The key fob will not work if it does not transmit the signal. It must be replaced. This is usually handled by a technician or a dealership. Citroen C4 keys can malfunction due to a variety of reasons. It could be the battery of your coin-cell is dead, signal interference or water damage. The first step to troubleshoot is to examine the batteries of the key fob and look for obvious indications of damage. This can be done by opening the key fob and removing the battery for a clearer view. Replace the battery if it has drained. Make sure that the new battery has the same size, voltage and specification. Make sure that you fully connect the fob prior to replacing it. Faulty 12 volt battery A majority of modern cars come with key fobs that let you to lock and unlock the vehicle from an extended distance. These devices send signals to the car to control the locks and use battery power to operate. citroen c3 key replacement thekeylab.co.uk can degrade over time. The good news is that the replacement battery is cheap and simple to install. You can use a flat-blade screwdriver to pry the fob open, or your owner's manual may contain instructions on how to do it. When replacing the battery, make sure you're using a replacement battery of the same type and size as the original. Different types of batteries come with different voltages, which could cause the fob's function to cease or display a low battery alert. Remember to also orient the battery in a way that the plus and minus indicators correspond to the orientation of the original. This will ensure that the chip is receiving the correct signals. It is also possible that the issue could be caused by a defective receiver module. In this case, you should contact your dealer to get further diagnostics and repairs. Keys that are not paired require Reprogramming Car key remotes might not function for different reasons. The majority of these issues can be easily and quickly repaired. Most often, a dead coin-cell battery is the cause. This can be replaced in a couple 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 should be cleaned. A faulty receiver module, or signal interference is a second possibility. If the key fob fails to receive a clear signal from the receiver it may not be able lock or unlock the doors and start the vehicle, or operate the hands-free system. In these cases you can reset the receiver by removing the battery for a couple of minutes. Smart keys are more expensive and cost as high as $500 to replace. They contain a security chip that disables the immobiliser on your vehicle. It is best to have two keys working for your C4 to avoid the cost of these keys. This key fob for replacement is upgraded with new internal components and is tested before being shipped to you.