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Citroen Berlingo Key Fob Troubleshooting Citroen Berlingo Multispace fills a niche in the market for people carriers. Its sliding doors at the rear allow it to be squeezed into bay parking spaces and its durable cabin is more bashing-proof than the majority of upmarket competitors. If your key fob was bathed in soapy salt water, it could not be working again, even after a new battery and reprogramming. 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. Then, place it with the button facing down and let it dry for a couple of minutes while you clean the inside with a clean cloth. This should stop any condensation from damaging the electronic chip. If the dashboard warning light that looks like a car and has the key symbol illuminates on your Mk 2 or Mk 3 Citroen Berlingo then this could indicate an immobilizer problem. This is a security component that is installed in the vehicle to stop thieves from hotwiring it. If this is the case then you need to go to an Citroen dealer or a trained mechanic to resolve the problem. A continuous engine warning light could indicate that the electric power assisted steering is malfunctioning. If this is the case, then you should stop the car and check whether the pressure of the oil is fine and the temperature is not too high prior to restarting it. If the issue continues, you will need to visit a Citroen dealer or a qualified mechanic to resolve the issue. Dead Battery The most common reason for the key fob not functioning inside your Berlingo is the battery in the coin is dead. The button cell inside the key can be replaced however it is essential to use the right size, voltage and type of battery. A non-compatible cell can damage the circuit. A dead coin battery could also disable the anti-theft system. This is a security feature that stops the engine from being started without a 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 is damaged and not communicating with other modules in your vehicle. This can be detected using an OBDII scan tool. If the key fob still not responding, try reprogramming. To do g28carkeys.co.uk , follow the directions in your owner’s manual. It should be working fine after it has been updated. Fault Diagnosis Citroen Berlingo owners are generally satisfied with the reliability of the car. However, as with any vehicle there are a few issues that occur. A dead key fob is among of the most frequent problems. This is a simple problem to identify and can be repaired in just a few minutes. Other problems include a worn-out button, water damage on the electronic chip, interference in the signal or a remote system receiver module that is malfunctioning. It is crucial to understand that not all keyfob batteries are same. Some batteries are made of inferior materials and could cause damage to your remote as well as other electronic. Use only batteries that are the same size and voltage as the original when replacing the battery. Also, ensure that the new battery is installed correctly. When inserting the battery into the slot, ensure that the positive (+) face of the battery is facing towards the upward direction. If you see a warning light on your dashboard that looks like a triangle with an exclamation mark, this signifies that the vehicle has discovered a problem with its electric power-assisted steering. If the warning light is illuminated while you're driving, we recommend that you speak with a certified mechanic at the Citroen Berlingo dealer (incl Multispace). Radio Interference Radio interference could be the cause your key fob's not working suddenly. This issue can be caused by devices that use the same frequency as remote controls. Some wireless security systems, for instance LED lights sold on the market, can interfere with the RF signal. Move these devices to another area if you have them in your home. In addition to devices that operate on the same frequency, there are also environmental factors that can interfere with a car's key fob. For instance, metal objects may affect the signal's strength. In addition, rainy weather can cause the antenna of the key fob to bend, leading to weaker signals. In some instances the key fob might not respond to the radio signals even when it is close to the vehicle. Check the battery to make sure the health of your key fob. The battery should be in good shape and the contacts must not be damaged by corrosion. A corroded connection is the main reason why the fob's keypad does not respond to radio signals coming from the vehicle. A depleted battery can also cause a fob to malfunction. If you replace the battery, but the problem persists, it's likely that the antenna is damaged. A locksmith can examine the keyfob and make repairs.