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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 large enough for five people and is a great vehicle to travel around the city. Sometimes, a keyfob might stop working due to pairing issues. If you follow the steps correctly, this problem can be easily fixed. For certain vehicles, a professional may be required with specialized tools. Dead coin battery A dead battery is the most common issue with remote key fobs. It is a simple fix, however. You just need to replace the battery that is coin-sized. citroen nemo key replacement TheKeyLab are available at your local auto shop and look similar to small silver coins. After replacing the battery, you'll be capable of locking and unlocking your car. Interference is another reason that your key fob won't function. It could be caused by numerous factors, like weather conditions, objects, or other transmitters on the same frequency. If this happens, then it could be necessary to take the ignition key and try again. The deprogramming of your key fob may be the reason for its inability to function. This could happen when the key is exposed to water or the battery is not removed correctly after the key is replaced. You can usually repair the programming by following the instructions in the owner's manual. If you are unable accomplish this, you may seek out a professional locksmith or dealer for assistance. Water damage Citroen C4 has a high level of reliability, however it is still a complex machine with hundreds of interconnected parts. It's not common for a car like the Citroen to experience a malfunction. In some instances, the problem is easily resolved. In some cases, you may need to contact assistance or visit an expert. The most frequent causes of the C4 key fob not functioning are a dead coin battery damage to the water, signal interference and receiver module issues. Water or sweat on the circuit board of the key fob can cause water damage to the circuit board of the key fob. This can short the circuit and cause the key fob becoming dead or causing battery drain. Keep your key fob away from the water and in a plastic bag. A multimeter can be used to measure the voltage of your battery. If the test is successful, you will get values that range from 12 to 13 If your battery fails to produce these values, then it could be defective. This means that you'll need to change the battery. A malfunctioning receiver module A damaged receiver could cause the key fob to cease to function. This is a common issue for Citroen owners, since the key fob has to transmit a signal through the door handle to allow the door to be opened and start the car. If the key fob is unable to send this signal, it won't function and will need to be replaced. This can be done at a vehicle dealership or by an expert mechanic. Citroen C4 keys can malfunction for a variety. These include a dead coin battery or signal interference, water damage or a defective electronic chip. To begin troubleshooting, test the key fob batteries and look for obvious indications. This can be done by opening the keyfob and removing its battery to take a closer view. Replace the battery if it is empty. Make sure that the new battery has the same voltage, size and specification. Make sure you fix the fob in place prior to replacing it. Poor 12 Volt Battery A lot of newer vehicles have key fobs that allow you to lock or unlock your vehicle remotely. These devices transmit an electrical signal to the vehicle to control the locks. They are powered by batteries. However, the batteries may fail over time. The good news is the replacement battery is affordable and simple to install. You can take the fob with a flat-bladed screwdriver or you can get instructions in your owner's guide. Replace the battery with a battery of the same type and size as the original. Different kinds of batteries have different voltages, which could cause the fob to cease working or display a low battery warning. Remember to also orient the battery in a way that the plus and negative numbers are in line with the initial orientation. This will ensure that the chip is receiving the proper signals. The problem could also be caused by a defective module. In this scenario, you should contact your dealer to get further diagnostics and repairs. Unpaired key requiring reprogramming The car key remote may stop working due to many reasons. Fortunately, the majority of these issues are fixable quickly and easily. Most often the problem is caused by a defective battery in the coin-cell. is the reason. It can be repaired in a matter of minutes at most auto part shops. However, it is important to make sure that the new battery is correctly installed. Metal retaining clips must be properly tightened and the battery's contact points should be clean. Another possibility is a faulty receiver module or signal interference. If the key fob isn't receiving a strong enough signal from the receiver, it will not lock or unlock doors, start the car or use the hands-free system. In these cases, you should try to reset the receiver by disconnection of the battery for a couple of minutes. Smart keys are more expensive and cost up to $500 to replace. They come with a security chip that disables the immobiliser in your vehicle. It is recommended to have two keys working for your C4 to avoid the cost of these keys. This key fob for replacement is cleaned and refurbished with new internal components and is tested before being sent to you.