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Citroen Berlingo Key Fob Troubleshooting Citroen's Berlingo Multispace occupies a utilitarian niche in the people carrier market. Its sliding rear doors allow it to fit into bay parking spaces and its sturdy cabin is more smack-proof than the most expensive rivals. If your key fob was submerged in saltwater or soapy water, it may not work again even after a new battery and programming. This is because the internal chip has been damaged due to exposure to water. Water Damage Shake your key fob to get rid of as much water as you can. Lay it on its back with the button in the downward position and let it run off for a few minutes while you clean the inside using a soft cloth. This should 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 a car key symbol, appears to be lit, then it could indicate a fault with the immobilizer. This is a security feature inside the vehicle that stops thieves from using hotwires. If this is the case then you need to visit an Citroen dealership or a certified mechanic to resolve the problem. A constant on engine warning light could indicate that the steering system with electric power is in trouble. If this is the case, then you must stop the car and ensure whether the pressure of the oil is ok and that the temperature is not too high prior to resuming it. If the issue continues, you'll need to consult a Citroen dealer or trained mechanic to fix the problem. Dead Battery The most frequent cause of the key fob being inoperative in your Berlingo is a dead battery for the coin. The button cell battery that is in the key is simple to replace, however it is important to ensure that you choose the right voltage size, type and size of battery. An uncompatible battery can harm the circuit. A dead coin battery can also disable the anti-theft system. This is a security measure that stops the engine from being started without the physical key. If the key fob still isn't responding to the lock button after replacing the battery, it could be that the receiver module is damaged and not communicating with other modules in your vehicle. An OBDII scanner can diagnose the issue. If the key fob still not responding, try reprogramming it. To do this, follow the instructions in your owner’s manual. Once it is reprogrammed device should function perfectly. Fault Diagnosis The reliability of the Citroen Berlingo is generally praised by its owners. However, as with all vehicles there are occasional issues that do occur. A dead key fob is among of the most frequently encountered issues. It is a simple issue to identify and can be resolved in a matter of minutes. Other issues that could occur include a worn-out button or button, water damage to the electronic chip, signal interference, or a remote keyless system receiver module that has developed an issue. It is important to realize that not all keyfob batteries will be the same. Certain batteries are made from inferior materials and may damage your remote key fob as well as other electronics in your vehicle. When replacing the battery, make sure you make sure that the battery is of the same voltage and type as the original. Make sure that the new one fits properly. Make sure that the positive (+) side of the battery is facing upwards when inserted into battery slot. If you notice an exclamation mark in the form of a triangle on your dashboard, it is a sign that there is an issue with the electric power-assisted driving system in your vehicle. If this warning illuminates when driving, it is advised that you seek advice from a qualified mechanic or Citroen Berlingo (incl Multispace) dealership. Radio Interference If your key fob is not working suddenly it could be the result of radio interference. This is a frequent issue caused by devices that use the same frequency as your remote control. For instance, some wireless security systems and LED lights can interfere with RF signals. Try moving these devices into another location if you have them in your home. In addition to devices that use the same frequency, there are also environmental factors that could hinder the operation of a key fob. Metal objects, for instance, can interfere with the strength of the signal. Rainy weather may also bend the antenna of the fob, resulting in a weaker radio signal. In some instances, even when the fob is located close to the car it might not respond to radio signals. Check the battery to ensure your key fob's health. The battery is in good condition and the contacts should not be affected by corrosion. A damaged connection is the main reason a keyfob does not respond to radio signals coming from the vehicle. A drained battery can cause the fob to malfunction. If you replace the battery and the issue persists, it is likely that the antenna is damaged. citroen ds3 key fob can examine the keyfob, and make repairs.