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Citroen Berlingo Key Fob Troubleshooting Citroen's Berlingo Multispace occupies a utilitarian segment in the people-carrier market. Its sliding rear door makes it easy to fit into parking bays, and its tough cabin is more durable than many of the more expensive competitors. But if your key fob has been bathed in soapy or salt water, it could not work again – even after a fresh battery and changing the program. The internal chip can be damaged due to exposure to water. Water Damage After you have rescued your key fob from whatever puddle, pool or washing machine it was swimming in, clear it of the most water you can by shaking it. Lay it flat with the button side facing up and leave it to drain for a few minutes while you wipe the inside using a cloth. This will stop any condensation from damaging the electronic chip. If your Mk 2 Citroen Berlingo or Mk 3 Citroen Berlingo dashboard warning light, which looks like an automobile key symbol illuminates then this could indicate an issue with the immobilizer. This is a security feature inside the vehicle that prevents thieves from using hotwires. If this is the case you'll need to see an Citroen dealer or a trained mechanic to address the issue. A constant engine warning light could mean that the power-assisted steering is not working properly. If this is the situation, you should take the vehicle off the road and check the temperature and pressure of your oil prior to resuming it. If the issue persists, you will need to visit a Citroen dealer or a certified mechanic to fix the issue. Dead Battery The most frequent cause of the key fob being inoperative in your Berlingo is the battery in the coin is dead. The button cell inside the key can be replaced easily but it is crucial to select the correct size, voltage, and type of battery. An uncompatible battery could damage the circuit board. A dead coin battery may also disable the anti-theft system. This is a security measure that prevents the engine from being started without the physical key. If the key fob still doesn't respond to the lock button, even after replacing the battery it could be because the receiver module is damaged and not communicating with other modules in your vehicle. An OBDII scanner can diagnose this issue. If the key fob is still not responding, try reprogramming it. To do this, follow the instructions in the owner's manual. It should work fine once it is updated. Fault Diagnosis The reliability of the Citroen Berlingo is generally appreciated by its owners. However, as with any vehicle there are a few issues that arise. A key fob that is dead is one of the most frequently encountered issues. Fortunately, it is simple to diagnose and can be repaired within a matter of minutes. Other problems that can arise include a worn-out button or a water damage to an electronic chip, signal interference, or a remote keyless system receiver module that has developed a fault. It is vital to be aware that not all keyfob batteries will be the same. Some batteries are made from inferior materials and could cause damage to your remote or other electronics. When replacing the battery, ensure you make sure you use a battery of the same type and voltage as the original. Make sure the new battery is inserted correctly. When inserting the battery into the slot, make sure the positive (+) face of the battery is facing upwards. If citroen c3 key fob replacement see an exclamation point in the shape of the shape of a triangle on the dashboard, it's a sign that there is a problem with the electric power-assisted driving system in your vehicle. If the warning light illuminates while driving, it is advised to seek help from a certified mechanic or Citroen Berlingo (incl Multispace) dealership. Radio Interference If your key fob stops working all of a sudden it could be as a result of radio interference. This issue could be caused by devices that use the same frequency as remote controls. For instance, certain wireless security systems and aftermarket LED lights can interfere with the RF signals. Move these devices to another room if you have them at home. In addition to devices that utilize the same frequency, there are also environmental factors that can interfere with the car's key fob. For instance, metal objects may affect the signal's strength. Weather conditions can also bend the antenna of the fob, resulting in a weaker radio signal. In some instances, even when the key fob is close to the vehicle it may not respond to radio signals. Examine the battery to confirm your key fob's health. The battery should be in good shape and the contacts shouldn't be corroded. A corroded contact is the primary reason for the fob's key not responding to radio signals. A drained battery can cause the fob to malfunction. If you replace the battery, but the issue persists, it's possible that the antenna is damaged. A professional locksmith will inspect the key fob and make any necessary repairs.