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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a small family car/compact SUV with some truly innovative features. It's spacious enough to hold five people and is an excellent way to travel around town. Sometimes, a keyfob might not work because of pairing issues. If you follow the directions correctly, this problem can be resolved easily. However, a professional equipped with special equipment is required to fix certain types of vehicles. Dead coin battery The most common problem with remote key fobs is a dead battery. It's an easy fix however. All you need to do is replace the coin battery. They are available at your local auto shop and look like small silver coins. After you've replaced the battery, you'll be capable of locking and unlocking your vehicle. Interference is another reason that your key fob may not function. This can be caused by various reasons, including objects, weather conditions or other transmitters operating at the same frequency. If this happens, it might be necessary to take the key from the ignition and try again. Another reason your key fob may not function could be because the fob has been deprogrammed. This could happen if the key is exposed to water or it's not properly removed after replacing the battery. You can usually fix the programming by following the directions in the owner's manual. If you're unable to do this resolve the issue, you can contact an expert locksmith or dealer to do it for you. Water damage Citroen C4 has a high level of reliability, yet it's still a complicated machine with hundreds of interconnected parts. As with all cars it is likely to experience an issue from time to moment. In some cases the problem can be easily fixed. However, in citroen c1 key fob is possible to see a mechanic or call for assistance. The most common reasons for the C4 key fob not functioning are an unresponsive coin battery, water damage, signal interference and receiver module problems. Water or sweat on the circuit board of the key fob could cause water damage. This can short the circuit and result in an unresponsive keyfob or battery drain. Keep your key fob away from the water and put it in the plastic bag. A multimeter is a tool to check the battery's voltage. A successful test will show numbers between 12 and 13. If your battery isn't generating these numbers, it could be defective. This means that you'll need to replace the battery. A malfunctioning receiver module A malfunctioning receiver can cause the key fob to cease to function. This is a typical issue for Citroen owners, since the key fob needs to send a signal through the door handle to open and start the vehicle. The key fob won't work if it doesn't transmit the signal. It is required to be replaced. This is typically handled by a mechanic or a dealer. Citroen C4 keys can malfunction for a variety. These include a dead battery, water damage, signal interference or a malfunctioning electronic chip. To begin troubleshooting, check the battery of your key fob and check for obvious signs. This can be done by opening the keyfob and removing its battery to have a better look. If you discover a dead battery Replace it with a new one. Make sure that the new battery has the same voltage, size and specification. Make sure you connect the fob prior to replacing it. A faulty 12 Volt battery Many newer cars have key fobs that let you to lock or unlock the vehicle remotely. These devices send an electronic signal to the vehicle that controls the locks. They are powered by batteries. Batteries can degrade over time. The good part is that the replacement battery is affordable and simple to replace. You can use a screwdriver with a flat blade to pry the fob open or the owner's manual may 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 batteries can differ in voltage, which can cause your fob to stop functioning or display a low-battery message. Remember to also orient the battery in such that the positive and negative symbols are aligned with the initial orientation. This will ensure that the chip is receiving the right signals. The issue could be due to a malfunctioning module. In this situation, it is recommended to contact the dealer for further advice and repairs. Unpaired keys that need the reprogramming The remote for your car's ignition may stop working due to a number of reasons. Fortunately, most of these problems can be fixed quickly and easily. Most of the time it is a dead battery that is the reason. This can be replaced in just a few seconds at most auto parts shops. It is essential that the new battery be installed correctly. Metal retaining clips need to be tightened properly and the battery's contacts should be clean. Another possibility is a defective receiver module or signal interference. If the key fob doesn't receive a clear signal from the receiver it may not be able unlock or lock 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 a few minutes. Smart keys are more expensive and could cost as high as $500 to replace. They are equipped with an electronic security device that disables the immobiliser in your vehicle. It is best to have two keys working for your C4 to avoid the high cost. This key fob replacement for the remote is restored and tested with new internal components before it is sent to you.