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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a small SUV for families that has some genuinely innovative features. It's spacious enough for five people, and it's an excellent way to get around the city. Sometimes keys fobs stop functioning due to pairing issues. This problem may be solved if instructions are followed correctly. However, a professional equipped with special equipment is required for certain makes of vehicles. Dead coin battery The most frequent issue with remote key fobs is an inactive battery. However, it's an easy fix. You only need to replace the battery with a coin size. citroen key battery resemble tiny silver coins, and can be found in your local automotive shop. After you replace the battery, your car should be able unlock and lock. Interference is another reason that your key fob's device may not function. It could be caused by numerous factors, like objects, weather conditions, or other transmitters operating on the same frequency. If this occurs it is possible to take out the ignition key and try again. The key fob's deprogramming could be the reason for the failure of the key to function. This can happen when the key is exposed to water or the battery is not removed properly after replacing the key. You can usually restore the programming by following the steps in the owner's manual. If you cannot resolve the issue, you can contact an expert locksmith or dealer to help you. Water damage Citroen C4 has a high level of reliability, but it's a complicated machine that has hundreds of interconnected parts. It's not unusual for a Citroen C4 to experience a breakdown. In some cases the issue is easily repaired. However, in other instances, you might need to see a professional or call for assistance. The most common causes of the C4 key fob not working are the battery being dead, water damages, signal interference and receiver module issues. Water damage can result from sweat or moisture on the key fob's circuit board. The circuit could be prone to become shorted, which can lead to the battery draining or a dead key fob. 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 values that range from 12 to 13. If your battery isn't generating these values, it could be defective. This means you'll have to change the battery. A malfunctioning receiver module A defective receiver can cause the key fob to cease working. This is a common problem for Citroen owners, as the key fob must send a signal through the door handle to allow the door to be opened and start the car. The key fob won't work if it fails to transmit the signal. It must be replaced. This is usually done at a dealer for cars or by a professional mechanic. There are a variety of things that could go wrong with your Citroen C4 key fob. These include a dead battery, water damage, signal interference or a damaged electronic chip. To begin troubleshooting the issue, test the batteries on the key fob and look for obvious indications. This can be done by opening the keyfob, then removing its battery to take a closer look. Replace the battery if it has drained. Make sure that the new battery is of the same size, voltage and specifications. Also, make sure the fob is fully joined before replacing it. Problematic 12 Volt Battery A majority of modern cars have key fobs that let you to lock or unlock your vehicle remotely. These devices send signals to the vehicle to control the locks. They are powered by batteries. However, the batteries can fail over time. The good thing is that the replacement battery is inexpensive and simple to replace. You can pry the fob apart with a flat-bladed screwdriver. Or you can find the instructions in your owner's manual. Replace the battery with a new one that is the same type and size as the original. Different batteries may have different voltages that could cause your fob to stop functioning or display a low-battery message. Be sure to align the battery so that the plus and minus indicators are in the same direction as the original. This will ensure that the chip is receiving the proper signals. It is also possible that the issue could be caused by a faulty receiver module. If this is the case it is recommended to contact your dealer for further assistance and repairs. Unpaired keys that need reprogramming The car key remote could stop working due a number of reasons. Fortunately, most of these problems can be corrected quickly and easily. The most common reason is a dead coin battery, which can be replaced in a few minutes at many auto parts stores. It is essential that the new battery be installed correctly. Metal retaining clips must be tightened properly and the battery's contacts should be clean. A defective receiver module or signal interference, is a different possibility. If the key fob does not receive a strong signal from the receiver it could not lock or unlock the doors and start the vehicle, or operate the hands-free system. In these cases, you can reset the receiver by removing the battery for a period of time. Smart keys are more expensive and cost as high as $500 to replace. They contain an electronic security device that disables the standard immobiliser of your vehicle. It is recommended to have two keys working for your C4 to avoid these high costs. This replacement remote key fob is upgraded with new internal components and is tested before delivering to you.