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Citroen C4 Key Fob Replacement The Citroen C4 Picasso, a compact SUV that is small for a family, has some truly innovative features. It's spacious enough to hold five people and is a great way to travel around the city. Sometimes, a keyfob can stop working due to pairing problems. If you follow the directions correctly, the issue can be resolved easily. However, a professional with specialized equipment is needed to fix certain types of vehicles. Dead coin battery A dead battery is the most common problem affecting remote key fobs. But, it's an easy fix. All you have to do is replace the battery on your coin. These batteries look like little silver coins and can be purchased at the local auto store. When you replace the battery, your vehicle should be able to unlock and lock. Another reason why your key fob won't work is due to interference. This can occur due to many factors, such as objects, weather conditions, or other transmitters on the same frequency. If this happens, it could be necessary to take the ignition key and try again. Another reason your key fob may not function could be that the device has been deprogrammed. This could occur when the key has been exposed to water, or the battery isn't removed properly after replacing the key. Usually, you can restore the car's programming by following the guidelines provided in the owner's manual. If you're unable to do this, you can seek out a professional locksmith or dealer to assist you. Water damage The Citroen C4 is a highly reliable car, however it's a machine with hundreds of interconnected components. It's not uncommon for a C4 from Citroen to have a breakdown. In some cases, the issue is easily resolved. In other cases, you may need to call for assistance or see a mechanic. The most frequent causes of the C4 key fob not working are the battery being dead, water damage, signal interference and receiver module issues. Water or sweat on the circuit board of the key fob may cause water damage. This could cause a short circuit in the circuit and cause a dead keyfob or battery drain. Keep your key fob away from the water and put it in the plastic bag. You can also test the voltage of your battery by using an instrument. A successful test will produce values between 12 and 13 If your battery isn't producing these numbers, then it may be defective. This means you will need to replace the battery. A malfunctioning receiver module A defective receiver module could cause the key fob to stop working. This is a common problem for Citroen owners, since the key fob must send a signal to the door handle to unlock and start the car. The key fob will not function if it is unable to transmit the signal. It is required to be replaced. This is usually carried out at a dealership for vehicles or by an expert mechanic. Citroen C4 keys can malfunction for a variety of reasons. It could be due to a dead coin-cell battery or signal interference or water damage. The first step to troubleshoot is to examine the batteries of the key fob and look for obvious signs of damage. This can be done by opening the key fob then taking out the battery for a better view. Replace the battery if it has empty. Make sure that the new battery has the same size, voltage and specifications. Make sure you connect the fob prior to replacing it. Problematic 12 Volt Battery Most newer cars come with key fobs that allow you to lock and unlock the vehicle from an extended distance. These devices send a signal to the car to control the locks and use battery power to operate. However, batteries can fail over time. The good news is that the replacement battery is affordable 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 one of the same type and size as the original. Different batteries may have different voltages, which could cause your device to stop functioning or display a low-battery message. Be sure to position the battery in such that the positive and negative indicators are in line with the initial orientation. This will ensure that the chip is receiving the correct signals. The issue could be caused by a faulty receiver module. In this scenario, you should contact your dealer for further diagnostics and repairs. Keys that are not paired require reconfiguring Car key remotes can not function for different reasons. Fortunately, most of these issues can be fixed quickly and easily. The most common reason is a dead coin battery, which can be replaced in a few minutes at the majority of auto parts stores. However, it is important to ensure that the new battery is properly installed. Metal retaining clips should 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 is not receiving a sufficient signal from the receiver, it might not be able to lock or unlock doors or start the car, or use the hands-free function. In these cases you can reset the receiver by disconnecting the battery for a couple of minutes. TheKeyLab , that have an integrated security chip that disarms the vehicle's standard immobiliser they are more expensive than traditional keys made of metal and can cost as much as $500 to replace. To avoid the high cost, it's a good idea to have at least two working keys for your C4. This key fob replacement for the remote is rebuilt and tested with brand new internal components before being shipped to you.