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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a small family car/compact SUV with some genuinely innovative features. It's big enough for five people, and is an excellent way to get around town. Sometimes, a keyfob will stop working due to pairing issues. If you follow the directions correctly, the issue will be easily fixed. However, a professional with specific equipment is required for specific models of vehicles. Dead coin battery The most common problem with remote key fobs is an inactive battery. It's a simple fix however. You'll only need to replace the battery with a coin size. The batteries look like small silver coins, and are available at the local auto store. When citroen key remote replace the battery, your vehicle should be able of unlocking and lock. Another reason why your key fob isn't working is due to interference. This can occur due to numerous factors, like objects, weather conditions, or other transmitters on the same frequency. If this happens, then it could be necessary to remove the key from the ignition and try again. Another reason your key fob won't work could be that the device is not programmed properly. This could occur when the key has been exposed to water, or the battery isn't removed properly after replacing the key. You can usually fix the programming by following the directions in the owner's manual. If you are unable to do this, you can seek out a professional locksmith or dealer for assistance. Water damage The Citroen C4 is a highly reliable car, however it's an automobile with a lot of interconnected parts. It's not uncommon for a C4 from Citroen to have a breakdown. In some instances, the issue can be fixed easily. However, in other instances it is possible to see a mechanic or call for assistance. The most common reasons for why the C4's key fob stops working include a dead coin battery and signal interference, water damage, and receiver module issues. Water damage can be caused by sweat or moisture on the circuit board. This can short the circuit and cause dead key fobs or battery drain. Keep your key fob out of the water and put it in a plastic bag. A multimeter is a tool to check the voltage in your battery. A successful test will show values between 12 and 13. If your battery isn't generating these values, it could be defective. This means you will need to replace the battery. The receiver module is not working properly. A faulty receiver can cause the key fob to cease to function. This is a common issue for Citroen owners, since the key fob is required to send a signal to the door handle to unlock and begin the vehicle. If the key fob is unable to send this signal, it won't work and needs to be replaced. This is typically handled by a mechanic or a dealership. Citroen C4 keys can malfunction for a variety. This includes a dead coin battery, signal interference, water damage or a damaged electronic chip. The first step in troubleshooting is to examine the batteries of the key fob and look for obvious indications of damage. You can do this by opening the key fob and removing the battery for a better view. Replace the battery if it is depleted. Make sure that the new battery has the same size, voltage, and specification. Make sure that you fully fix the fob in place prior to replacing it. A faulty 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 electronic signal to the vehicle to control the locks. They are powered by batteries. Batteries can degrade over time. The good thing is that the replacement battery is cheap and easy to replace. You can take the fob apart using a flat-bladed screwdriver, or you can get instructions in your owner's handbook. Replace the battery by using a different one of the same size and type as the original. Different batteries can have different voltages which can cause your device to stop functioning or display a low-battery warning. Make sure you also align the battery in that the positive and negative indicators correspond to the initial orientation. This will ensure that the chip is receiving the proper signals. The issue could also be caused by a faulty module. In this instance, it is recommended to call the dealer to discuss further diagnosis and repairs. Unpaired keys that require reconfiguring Car key remotes can not function for many reasons. The majority of these issues are easily and quickly repaired. The most frequent cause is an old coin battery, which can be replaced in just a few minutes at most auto parts stores. It is crucial that the new battery is installed correctly. Metal retaining clips should be properly tightened and the battery's contact points should be clean. A malfunctioning receiver module or signal interference is another possibility. If the key fob is not receiving a strong enough signal from the receiver, it could not be able to lock or unlock doors and start the car or operate the hands-free feature. In these cases you can reset the receiver by disconnecting the battery for a short period of time. Smart keys, which have an integrated security chip that disables the vehicle's standard immobiliser is more expensive than traditional metal keys and can cost upwards of $500 to replace. To avoid these costly costs it's recommended to have at minimum two keys working for your C4. This replacement remote key fob has been refurbished and tested with new internal components before being shipped to you.