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Citroen Berlingo Key Fob Troubleshooting Citroen Berlingo Multispace fills a niche in the market for people carriers. Its sliding rear door makes it easy to fit into bay parking spaces, and its sturdy cabin is more durable than many of the more expensive competitors. However, if your device was bathed in soapy salt water, it could not function again, even after a fresh battery and reprogramming. This is because the internal chip has been damaged due to exposure to water. Water Damage Shake your key fob to drain as much water as you can. Lay it on the floor with the button down, and let it drain for a few minutes while you clean the inside using a soft cloth. This will stop any condensation from damaging your electronic chip. If your Mk 2 Citroen Berlingo or Mk 3 Citroen Berlingo dashboard warning light, which appears like a car key symbol, appears to be lit, then it could indicate a fault with the immobilizer. This is a security component in the vehicle to prevent thieves from stealing it. If this is the case, you will need to see an Citroen dealer or a trained mechanic to solve the issue. A constant warning light for the engine could mean that the electronic power assisted steering system is failing. If this is the case then you must stop the car and ensure that the pressure in the oil is fine and the temperature is not too high prior to restarting it. If the issue continues then you must visit a Citroen dealership or a qualified mechanic to resolve the issue. Dead Battery The most common cause of the key fob being inoperative within your Berlingo is a dead battery for the coin. The button cell in the key can be replaced easily but it is crucial to use the right voltage, size, and type of battery. A battery that isn't compatible could cause damage to the circuit board. A dead coin-cell battery could also disable the anti-theft feature. This is a security measure that prevents the engine from starting without the physical key. If the key fob still doesn't respond to the lock button even after replacing the battery it could be that the receiver module has failed and isn't communicating with other modules in your vehicle. This can be diagnosed with an OBDII scan tool. If the key fob is still not responding, you can try reprogramming. Follow the instructions in your owner's manual to do this. It should be working fine after it has been reprogrammed. Diagnosis of a Fault The reliability of the Citroen Berlingo is generally appreciated by its owners. However, like any vehicle there are a few issues that can arise. A dead key fob is one of the most frequent problems. Fortunately, this is easy to determine and is easily replaced in just a few minutes. Other issues that could occur could be caused by a worn or damaged 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 important to know that not all keyfob batteries are the same. Certain batteries are made of inferior materials and could cause damage to your remote or other electronic components. Make sure you use batteries of the same kind and voltage as the original when replacing the battery. Also, 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 towards the upward direction. If you notice the warning light on your car's dashboard which appears like an exclamation point, this means that the car is detecting a problem with its electric power-assisted steering. If citroen xsara picasso key fob appears when you drive, we recommend that you seek out a certified mechanic at an Citroen Berlingo dealer (incl Multispace). Radio Interference Radio interference could be the reason of your key fob not working suddenly. This is a typical issue caused by devices that use the same frequency as your remote control. Certain wireless security systems, such as LED lights sold on the market, can interfere with RF signals. Try moving these devices into another room if you have them in your home. In addition to devices using the same frequency, there are also environmental factors that can hinder the operation of a key fob. Metal objects, for instance can impede the strength of the signal. Rainy weather can also make the fob's antenna be bent, resulting in an ineffective signal. In some instances even if the fob is located close to the vehicle it might not respond to radio signals. To make sure that your key fob's health is good make sure you check the battery. The battery is in good condition and the contacts should not be corroded. Contacts that are damaged by corrosion are a major cause of the fob's key not responding to the radio signals. A depleted battery may cause fobs to fail. If the issue continues to persist after replacing the battery the antenna may be malfunctioning. A locksmith can look over the keyfob and make repairs.