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Citroen C4 Key Fob ReplacementThe Citroen C4 Picasso, a small family vehicle/compact SUV is packed with truly innovative features. It's spacious enough to hold five people, and is an excellent way to travel around town.Sometimes, a keyfob can cease to function due to pairing issues. If you follow the directions correctly, the issue will be fixed easily. For certain vehicles, a technician will be required with special tools.Dead coin batteryA dead battery is the most common problem affecting remote key fobs. It's a simple fix however. You'll only need to replace the battery in the shape of a coin. These batteries can be found at your local auto shop and look like small silver coins. After you replace the battery, your car should be able unlock and lock.Another reason your key fob won't work is due to interference. This could be due to several reasons, including objects, weather conditions, or other transmitters using the same frequency. If this happens, it might be necessary to remove the ignition key and try again.Another reason why your key fob won't work could be that the device has been deprogrammed. This could happen if the key has been exposed to water, or the battery isn't removed correctly after replacing the key. It is usually possible to restore the programming by following the guidelines in the owner's manual. If you're not able to get it done, you can go to a dealer or professional locksmith to do it for you.Water damageThe Citroen C4 is a highly reliable car, but it's still a vehicle with hundreds of interconnected parts. Like any other car it is likely to have an issue from time to moment. In some instances, the issue can be easily fixed. In other cases, you might need to visit a mechanic or seek assistance. The most frequent causes of the C4 key fob not working is a dead coin battery, water damage, signal interference and receiver module problems.citroen c4 replacement key www.thekeylab.co.uk can result from sweat or moisture on the key fob's circuit board. This can short the circuit and result in dead key fobs or battery drain. Keep your key fob away from the water and in an airtight bag.A multimeter can be used to measure the voltage of your battery. A successful test will yield values that range from 12 to 13 If your battery isn't producing these numbers, it could be defective. This means that you'll need to change the battery.Receiver module that is defectiveA damaged receiver module may cause the key fob to stop functioning. Citroen owners often encounter this issue, because the keyfob must send an indication to the door handle to unlock 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 is usually handled by a technician or a dealer.Citroen C4 keys can malfunction for a variety of reasons. It could be due to an empty coin-cell battery, signal interference or water damage. The first step to troubleshoot is to test the key fob's batteries and to check for obvious evidence of damage. This can be done by opening the keyfob, then removing its battery for a more thorough view.If you spot a depleted battery, replace it with a new one. Make sure the new one has the same voltage, size, and specification. Also, make sure the fob is completely connected prior to replacing it.Problematic 12 Volt BatteryA majority of modern cars have key fobs which allow you to lock or unlock your vehicle remotely. These devices transmit a signal to the car to control the locks and work on battery power. Batteries can degrade over time. The good news is the replacement battery is affordable and simple to install. You can take the fob apart using a flat-bladed screwdriver, or you could find instructions in your owner's handbook.Replace the battery with one of the same size and type as the original. Different batteries may have different voltages, which could cause your fob to stop working or display a low-battery message. Also, remember to orient the battery so that the plus and minus signs are in the same direction as the original. This will ensure that the chip is receiving the correct signals. The issue could also result from a malfunctioning module. In this instance, it is recommended to contact the dealer for further diagnosis and repairs.Keys that are not paired require changing the programThe car key remote could stop working due many reasons. The majority of these issues can be quick and easy to fix. Most often it is a dead battery that is the reason. This can be repaired in a matter of moments at most auto parts shops. It is important that the new battery be installed correctly. Metal retaining clips should 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 sufficient signal from the receiver, it may not be able to lock or unlock doors as well as start the car or operate the hands-free feature. In such cases, you should try to reset the receiver by disconnection of the battery for a short period of time.Smart keys are more expensive and can cost as high as $500 to replace. They come with an electronic security device that disables the immobiliser of your vehicle. To avoid the high cost it's recommended to have at minimum two working keys for your C4. This key fob replacement for the remote is repaired and tested using new internal components before it is sent to you.