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Citroen C4 Key Fob Replacement The Citroen C4 Picasso, a small family vehicle/compact SUV, has some truly innovative features. It has decent space for five people, and it's a great way to get around the city. Sometimes, a keyfob may cease to function due to pairing problems. This problem may be solved if instructions are followed properly. However, a professional with specialized equipment is needed for specific makes of vehicles. Dead coin battery A dead battery is the most frequent issue that affects remote key fobs. However, it's a simple solution. All you have to do is replace the battery in the coin. The batteries look like small silver coins, and can be purchased at the local auto store. After you have replaced the battery, your car should be able of unlocking and lock. citroen berlingo key fob The Key Lab why your key fob might not work is because of interference. This can be caused by numerous factors, like weather conditions, objects or other transmitters operating on the same frequency. If this happens it could be necessary for you to unplug the ignition key and try again. Another reason why your key fob isn't working could be that the device is not programmed properly. This can occur if the key has been exposed to water, or if the battery isn't removed correctly after replacing the key. You can usually repair the programming by following the directions in the owner's manual. If you're unable to do this, ask a professional locksmith or dealer for assistance. Water damage The Citroen C4 is a highly reliable car, however it's an auto with hundreds of interconnected parts. Like any other car it is likely to encounter an issue from time to the time. In some instances it is easy to get the issue resolved. But in others it is possible visit a mechanic or call for assistance. The most common causes of the C4 key fob not functioning are a dead coin battery, water damages, signal interference and receiver module issues. Water or sweat on the circuit board of the key fob could cause water damage to the circuit board of the key fob. This can cause the circuit to short, resulting in the battery draining or even a dead key fob. To prevent this from happening, try to keep your key fob away from water, or place it in a bag prior to using it. A multimeter can be used to check the voltage in your battery. A successful test will produce values that range from 12 to 13 If your battery does not produce these values, then it could be defective. This means you'll have to replace your battery. A malfunctioning receiver module A damaged receiver could cause the key fob to stop working. This is a common problem for Citroen owners, since the key fob needs to transmit a signal through the door handle to allow the door to be opened and start the vehicle. The key fob will not work if it fails to transmit the signal. It needs to be replaced. This is usually performed at a car dealership or by an expert mechanic. Citroen C4 keys can malfunction due to a variety reasons. It could be due to a dead coin battery, signal interference, water damage, or a defective electronic chip. To begin troubleshooting the issue, test the batteries on the key fob and look for obvious indications. You can do this by opening the key fob then taking out the battery to gain a better view. Replace the battery if it is empty. Make sure that the new battery has the same voltage, size and specifications. Also, make sure that the fob is fully attached prior to replacing it. Poor 12 Volt Battery The majority of newer cars have key fobs that let you to lock and unlock the vehicle from some distance. These devices transmit a signal to the car to control the locks. They operate on battery power. Batteries can fail with time. The good thing is that the replacement battery is inexpensive and simple to replace. You can pull the fob using a flat-bladed screwdriver, or you could find instructions in your owner's guide. When replacing the battery, be sure you're using a battery of the same type and size as the original. Different kinds of batteries have different voltages, which could cause the fob's function to cease or display a low battery warning. Also, make sure to position the battery in a way that the plus and minus indicators match the orientation of the original. This will ensure that the chip receives the right signals. The problem could also be caused by a defective module. In this scenario you should call your dealer for further assistance and repairs. Unpaired keys require reconfiguration The remote for your car's key can stop working due to various reasons. Fortunately, the majority of these problems are fixable quickly and easily. The most common reason is a dead coin battery which can be replaced in just a couple of minutes at most auto parts stores. It is essential that the new battery be installed correctly. Metal retaining clips should be properly tightened and the contacts of the battery must be cleaned. Another possibility is a malfunctioning receiver module or signal interference. If the key fob does not receive a strong 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 it is recommended to reset the receiver by disconnection of the battery for a couple of minutes. Smart keys are more expensive and cost as much as $500 to replace. They come with a security chip that disables the standard immobiliser on your vehicle. It is recommended to keep two working keys available for your C4 in order to avoid the high cost. The replacement remote key fob has been rebuilt and tested with brand new internal components before being shipped to you.