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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a small SUV for families that has some truly innovative features. It's spacious enough for five people and is a great option to get around the city. Sometimes the key fob ceases functioning due to pairing issues. If you follow the instructions properly, this issue can be fixed easily. For certain automobiles, a professional will be required to use specialized tools. Dead coin battery The most common problem with remote key fobs is the battery being dead. However, there is an easy fix. All you have to do is replace the battery in the coin. These batteries resemble tiny silver coins and can be found in your local automotive shop. After you've replaced the battery, you'll be secure enough to lock and unlock your vehicle. The Keylab is a different reason for why your key fob's device may not function. This can occur due to numerous factors, like objects, weather conditions, or other transmitters operating on the same frequency. If this happens, it might be necessary to remove the ignition key and try again. Another reason why your key fob might not work may be that it is not programmed properly. This can happen if the key is exposed to water or if it is not removed properly after replacing the battery. You can usually repair the programming by following the directions in the owner's manual. If you're unable to do this resolve the issue, you can contact a locksmith shop or a professional to do it for you. Water damage The Citroen C4 is a highly reliable car, but it's still a machine with hundreds of interconnected parts. As with all cars it can suffer occasional breakdowns from time moment. In some instances, the issue is fixable. In other cases you may have to contact assistance or visit a mechanic. The most common reasons for the C4 key fob not working are a dead coin battery, signals interference, water damage and receiver module malfunctions. Moisture or sweat on the circuit board of the key fob may cause water damage to the circuit board of the key fob. The circuit could be prone to become shorted, which can lead to an energy loss or a dead key fob. To prevent this from happening, try to keep your key fob safe from water, or place it in a plastic bag before using it. A multimeter can be used to test the battery's voltage. A successful test will yield values between 12 and 13. If your battery doesn't produce these values, it may be defective. This means that you will have to replace your battery. The receiver module is not working properly. A damaged receiver could cause the key fob to stop working. Citroen owners often encounter this issue because the keyfob has to send a signal to the door handle in order to unlock and begin the vehicle. If the key fob fails to transmit this signal, it will not function and will need to be replaced. This can be done at a dealer for cars or by an experienced mechanic. There are many things that could go wrong with your Citroen C4 key fob. This includes a dead coin battery or water damage, signal interference or a damaged electronic chip. To begin troubleshooting, check the battery of your key fob and look for obvious indications. This can be done by opening the keyfob and removing its battery to take a closer view. If you discover a dead battery replace it with a new one. Make sure that the new battery has the same voltage, size and specifications. Make sure you snap the fob together before replacing it. A faulty 12 Volt battery A majority of modern cars come with key fobs that allow you to lock and unlock your vehicle from an extended distance. These devices send a signal to the vehicle to control the locks. They are powered by batteries. However, the batteries can fail over time. The good news is that the replacement battery isn't expensive and easy to install. You can use a flat-blade screwdriver to break the fob or your owner's manual may contain instructions on how to do it. When replacing the battery, be sure you're using a battery of the same size and type as the original. Different kinds of batteries have different voltages, which can cause the fob to cease working or display a low battery alert. Also, make sure to position the battery so that the plus and minus symbols coincide with the orientation of the original. This will ensure that the chip is receiving right signals. Alternatively, the problem may result from a malfunctioning receiver module. In this instance you should consult your dealer for additional diagnostics and repairs. Unpaired key that requires reconfiguring The remote for your car's ignition may stop working due to several reasons. Fortunately, the majority of these issues can be resolved quickly and easily. Most of the time the problem is caused by a defective battery in the coin-cell. is the reason. This can be replaced in just a few minutes at the majority of auto parts shops. However, it is important to make sure that the new battery is properly installed. Metal clips for retaining must be properly tightened, and the contacts of the battery should be cleaned. A defective receiver module or signal interference is a second possibility. If the key fob is unable 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 instances you can try to reset the receiver by disconnecting the battery for a short period of time. Smart keys, which include an integrated security chip that disarms the car's standard immobiliser system, are more expensive than traditional keys made of metal and can cost as much as $500 to replace. To avoid these costs it's recommended to have at minimum two keys working for your C4. This key fob for replacement is upgraded with new internal components and tested before sending to you.