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Citroen C4 Key Fob Replacement The Citroen C4 Picasso is a compact SUV that is small enough for a family, and has some genuinely innovative features. It's spacious enough for five people and is a great way to get around the city. Sometimes keys fobs stop working due to pairing issues. If you follow the instructions correctly, the issue can be fixed easily. However, a professional equipped with specialized equipment is needed for certain makes of vehicles. Dead coin battery The most frequent issue with remote key fobs is the battery being dead. However, there is a simple solution. All you need to do is replace the coin battery. The batteries are available at your local auto store and resemble small silver coins. After replacing the battery, your car should be able unlock and lock. Another reason why your key fob isn't working is because of interference. This can be caused by various factors, including objects, weather conditions, or other transmitters on the same frequency. If this happens, it may be necessary to remove the key from the ignition and try again. Another reason your key fob isn't working could be that the fob has been deprogrammed. This can happen when the key is exposed to water, or if it isn't removed correctly after replacing the battery. Usually, you can fix the programming of your car by following the steps in the owner's manual. If you're not able to resolve the issue, you can contact an expert locksmith or dealer to assist you. Water damage Citroen C4 has a high level of reliability, yet it's a complicated machine with hundreds of interconnected components. It's not uncommon for a Citroen C4 to have a breakdown. In some instances, the issue can be easily fixed. In some instances you might need to call for assistance or see an expert. The most frequent reasons why the C4's key fob stops working are dead coin battery or water damage, signal interference and receiver module issues. Moisture or sweat on the circuit board of the key fob may cause water damage to the circuit board of the key fob. This can cause the circuit to become shorted, which can lead to the battery draining or dead key fob. To prevent this from happening, try to keep your key fob away from the water or put it in a plastic bag before you use it. You can also check the voltage of your battery by using an instrument. A successful test will reveal numbers between 12 and 13. If your battery doesn't produce these numbers, it could be defective. This means that you'll need to replace the battery. Faulty receiver module A defective receiver can cause the key fob to cease to function. This is a frequent issue for Citroen owners, since the key fob needs to send a signal through the door handle to allow the door to be opened and start the vehicle. The key fob won't work if it does not transmit the signal. It has to be replaced. This can be done at a vehicle dealership or by an expert mechanic. There are many things that could go wrong with your Citroen C4 key fob. citroen c3 key replacement includes a dead coin battery, signal interference, water damage or a malfunctioning electronic chip. To begin troubleshooting, test the key fob batteries and look for obvious indications. You can do this by opening the key fob then taking out the battery to get a better view. Replace the battery if it is depleted. Make sure that the new battery is of the same size, voltage and specification. Make sure that you fully connect the fob before replacing it. Faulty 12 volt battery A majority of modern cars come with key fobs that allow you to lock and unlock the vehicle from some distance. These devices transmit signals to the vehicle that controls the locks. They are powered by batteries. Batteries may fail over time. The good thing is that the replacement battery is affordable and simple to replace. You can pry the fob off with a flat-bladed screwdriver or you can find the instructions in the owner's manual. When replacing the battery, make sure that you're using the same type and size as the original. Different types of batteries have different voltages, which can cause the fob to stop working or display a low battery warning. Also, remember to orient the battery so that the plus and minus marks are in the same direction as the original. This will ensure that the chip receives the correct signals. The issue could result from a malfunctioning module. In this scenario it is recommended that you contact the dealer for further diagnosis and repairs. Keys that are not paired require reconfiguration Car key remotes can not function for different reasons. Fortunately, the majority of these issues are fixable 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 easily replaced in a couple of minutes at most auto part shops. It is crucial that the new battery is installed correctly. Metal retaining clips should be tightened properly and the contacts of the battery need to be cleaned. A defective receiver module or signal interference is another possibility. If the key fob fails to receive a clear signal from the receiver, it may not be able unlock or lock the doors as well as start the vehicle or operate the hands-free system. In these situations, you can reset the receiver by dismantling the battery for a 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 high costs it's recommended to have at least two keys working for your C4. The replacement remote key fob has been repaired and tested using new internal components prior to being shipped to you.