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Citroen Berlingo Key Fob Troubleshooting
Citroen's Berlingo Multispace occupies a utilitarian space in the people carrier market. Its sliding doors at the rear allow it to easily squeeze into parking bays, and its robust cabin is more smack-proof than the majority of upmarket competitors.
But if your key fob was bathed in soapy salt water, it could not be working again, even after a new battery and changing the program. The internal chip has been damaged because of exposure to water.
Water Damage
After retrieving your key fob from the puddle, pool or washing machine it was swimming in, clean it of as much water as possible by shaking it. Place it on the ground with the button down and let it dry for a couple of minutes before wiping the inside with a soft cloth. This will stop any condensation from causing damage to the electronic chip.
If your Mk 2 Citroen Berlingo or Mk 3 Citroen Berlingo dashboard warning light, which appears like the symbol of a car key, appears to be lit, then it could indicate a fault with the immobilizer. This is a security feature inside the vehicle that prevents thieves from hotwiring it. If this is the case, then you will need to go to a Citroen dealer or a trained mechanic to fix the issue.
A continuous engine warning light could mean that the electronic power assisted steering system is malfunctioning. If this is the situation, then you need to stop the car and ensure that the oil pressure is fine and the temperature isn't overly high before you start it. If the issue persists, you'll need to visit an expert Citroen technician or mechanic to resolve the issue.
Dead Battery
A dead battery in the coin is the most frequent reason for your key fob not to function in your Berlingo. The button cell battery inside the key is very simple to replace, however you must ensure that you are using the correct voltage size, type and size of battery. An uncompatible battery can harm the circuit. A dead coin-cell battery can also disable anti-theft. This is a security function that prevents the engine from being started without a physical key.
If the key fob still not responding to the lock button even after replacing the battery it could be an incompatible receiver module that is not communicating with the other modules in your car. A scanner for OBDII can detect this problem.
If the key fob is still not responding, you can try reprogramming. Follow the steps in your owner's manual for this procedure. Once it has been reprogrammed, the device should function perfectly.
Diagnostics of a fault
The reliability of the Citroen Berlingo is generally loved by its owners. However, like any vehicle there are occasional issues that can arise. A key fob that is not working is one of the most frequent issues. This is an easy issue to determine and can be fixed within a matter of minutes. Other problems include a worn-out button, water damage to the electronic chip or signal, interference, or a remote system receiver module that is defective.
It is important to know that not all keyfob batteries are same. Certain batteries are made from inferior materials and could damage your remote key fob as well as other electronic components in your vehicle. When replacing citroen key , you should use a battery that is of the same type and voltage as the original. Also, ensure that the new battery is fitted correctly. When inserting the battery into the slot, ensure that the positive (+) face of the battery is facing upwards.
If you see an alert light on your dashboard which appears like a triangle with an exclamation mark, this indicates that your vehicle has discovered an issue with its electric power-assisted steering. If this warning light comes on while you're driving and you notice it, we suggest that you speak with a certified mechanic at an Citroen Berlingo dealership (incl Multispace).
Radio Interference
If your key fob has stopped working all of a sudden it could be the result of radio interference. This issue can be caused by devices that operate on the same frequency as a remote control. Some wireless security devices, such as LED lights from the aftermarket, could interfere with RF signals. If you have one of these gadgets at home, consider moving them into a different space to see if they help.

Environmental elements can also impact the key fob of automobiles, in addition to devices using the same frequency. Metal objects, for example, can interfere with the signal strength. Rainy weather may also bend the antenna of the fob, which results in a weaker radio signal. In some cases the key fob might not be able to respond to radio signals even when it is close to the vehicle.
Examine the battery to ensure your key fob's health. It should be in good condition, and the contacts should be free of corrosion. A damaged or corroded connection is the main reason why the keyfob doesn't respond to radio signals coming from a vehicle. A drained battery can also cause the fob to malfunction. If the issue persists after replacing the battery, the antenna may be malfunctioning. A locksmith can examine the keyfob and make repairs.