Citroen Berlingo Key Fob Troubleshooting
Citroen's Berlingo Multispace occupies a utilitarian niche in the people carrier market. Its sliding doors at the rear allow it to fit into parking bays, and its robust cabin is more smack-proof than the majority of upmarket competitors.
If your key fob 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 by 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 facing down and let it run off for a couple of minutes while you clean the inside with a soft cloth. This will stop any condensation from damaging the electronic chip.
If the dashboard warning light that appears like a vehicle with the key symbol illuminates on your Mk 2 or Mk 3 Citroen Berlingo then this could indicate an immobilizer issue. This is a security feature in the vehicle that stops thieves from wiring hotspots. If this is the situation you'll be required to visit a Citroen dealer or a certified mechanic to fix the issue.
A constant on engine warning light could indicate that the power-assisted steering is in trouble. If this is the situation, then you need to stop the car and check that the oil pressure is ok and that the temperature isn't too high prior to restarting it. If the problem persists and you are unable to resolve it, visit a Citroen dealer or a certified mechanic to fix the issue.
Dead Battery
A dead coin battery is the most common reason for your key fob to not work in your Berlingo. The button cell battery in the key is very easy to replace, but you must ensure that you use the correct voltage size, type and size of battery. A non-compliant cell could damage the circuit. A dead battery for a coin can also disable the anti-theft system. This is a measure of safety that prevents the engine being started without the physical key.
If the key fob isn't responding to the lock button even after replacing the battery it could be because the receiver module is damaged and isn't communicating with other modules in your vehicle. An OBDII scanner can diagnose this problem.
If the key fob isn't responding, then you can try reprogramming the key fob. Follow the instructions in your owner's manual to do this. After it has been reprogrammed device should function as expected.
Diagnostics of a fault
The reliability of the Citroen Berlingo is generally highly praised by its owners. However, as with G28 Car Keys there are some issues that arise. One of the most frequent is the battery for the key fob that is dead. Fortunately, this is easy to identify and can be fixed 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 system receiver module that is defective.
It is important to know that not all keyfob battery types are the same. Some batteries are made of inferior materials that can damage your remote or other electronics. Make sure you use batteries that are the same size and voltage as the original when replacing the battery. Make sure the new battery fits properly. Check that the positive (+) side of the battery is facing upwards when it is inserted into the slot for the battery.
If you notice an exclamation point in the form of an oval on your dashboard, it is a sign that there is a problem with your vehicle's electric power-assisted driving. If this warning light appears while driving, it is recommended that you seek help 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 common problem caused by devices that use the same frequency as your remote control. For instance, certain wireless security systems and LED lights can interfere with radio signals. Consider moving these devices to another area if you have them at home.
Environmental factors can also interfere with the key fobs of a car in addition to other devices using the same frequency. For instance, metal objects could interfere with the signal's strength. In addition, rainy weather can cause the antenna of the fob to bend, which can result in a weaker signal. In some cases even if the fob is located close to the car it might not respond to radio signals.
Check the battery to make sure your key fob's health. The battery should be in good shape and the contacts should not be corroded. A corroded connection is the main reason the fob's keypad does not respond to radio signals from a vehicle. A drained battery can cause the fob to malfunction. If you replace the battery, but the problem persists, it's a good indication that the antenna is defective. A locksmith can look over the keyfob and make repairs.