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Citroen Berlingo Key Fob Troubleshooting Citroen's Berlingo Multispace occupies a utilitarian space in the people carrier market. Its sliding rear doors allow it to easily squeeze into parking bays, and its robust cabin is more robust than the majority of upmarket competitors. However, if the device has been bathed in soapy or salt water, it might not function properly again – even after a fresh battery and reprogramming. This is because the internal chip has been damaged due to exposure to water. Water Damage After rescuing your key fob from the puddle, pool or washing machine it was swimming in, get rid of the most water you can by shaking it. Lay it on its back with the button in the downward position and let it dry for a couple of minutes while you clean the inside with a soft cloth. This should stop any condensation from causing damage to the electronic chip. If the warning light on the dashboard that appears like a car, with a key symbol in it illuminates on your Mk 2 or Mk 3 Citroen Berlingo then this could be a sign of an immobilizer fault. This is a security feature inside the vehicle to prevent thieves from hotwiring. If this is the situation you'll be required to visit an Citroen dealer or a certified mechanic to fix the issue. A constant engine warning light may indicate that the electric power assisted steering is not working properly. If this is the situation it is recommended to stop the car and test the oil pressure and temperature before starting it. If the problem continues to persist, you'll have to visit a Citroen dealership or a trained mechanic to fix the issue. Dead Battery The most common reason for the key fob not functioning inside your Berlingo is an inactive coin battery. The button cell inside the key can be replaced but it is crucial to select the correct size, voltage and type of battery. A non-compliant cell could damage 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 doesn't respond to the lock button, even after replacing the battery it could be that the receiver module is faulty and is not communicating with other modules in your vehicle. OBDII scanners can identify this issue. If the key fob is still not responding, you can try reprogramming. Follow the steps in the owner's manual for this procedure. Once the device has been reprogrammed, the device should work perfectly. Fault Diagnosis Citroen Berlingo owners are generally satisfied with the reliability of the vehicle. However, like all vehicles there are a few issues that arise. A key fob that is dead is one of the most common problems. It is a simple issue to determine and can be resolved within a matter of minutes. Other causes include a worn-out button, water damage to the electronic chip and interference in the signal or a remote receiver module that is defective. It is important to realize that not all keyfob batteries will be the same. Some batteries are constructed from inferior materials that could damage your remote or other electronic components. When replacing the battery, you should make sure that the battery is of the same voltage and type as the original. Also, ensure that the new battery is properly fitted. Make sure that the positive (+) side of the battery is facing upwards when inserted into the slot for the battery. If you see an indicator light on your dashboard that resembles a triangle with an exclamation mark on it, this means that the car has detected a problem with its electric power-assisted steering. If this warning light illuminates while you are driving, we recommend that you seek out a certified mechanic at an Citroen Berlingo dealer (incl Multispace). Radio Interference If your key fob has stopped working all of a sudden it could be a result of radio interference. This is a problem that can be caused by devices that use the same frequency as a remote control. For replacement key for citroen c3 , some wireless security systems as well as aftermarket LED lights can interfere with the RF signals. Try moving these devices to an alternative location if you've got them in your home. Environmental influences can also disrupt the key fob in cars in addition to other devices that operate on the same frequency. For instance, metal objects may affect the signal's strength. Rainy weather can also alter the antenna of the fob, resulting in a weaker radio signal. In some cases, the key fob may not be able to respond to radio signals even though it is close to the vehicle. Examine 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 or corroded connection is the main reason why the keyfob doesn't respond to radio signals from a vehicle. A depleted battery can also cause a fob to malfunction. If the issue continues to persist after replacing the battery the antenna may be faulty. A locksmith can look over the keyfob and fix it.