Notes

The Most Negative Advice We've Ever Heard About Citroen Ds3 Key Fob Replacement
Citroen C3 Key Fob Troubleshooting

Citroen c3 key fob can stop working due to different reasons. Some of these include worn buttons and poor contact with the battery, water damage and receiver module problems. You should also check the battery's 12 volts.

Deprogramming may be the cause the key fob's not unlocking your car. This happens when certain button sequences send an alert to the onboard computer to remove the key from its list of access.

Dead coin battery

If the fob that you use to open the door on your Citroen C3 is no longer working, first make sure the battery is dead. Fobs are small coin-shaped batteries which can be replaced within a few minutes. They are available in general stores, home improvements stores, and auto parts stores. Make sure you purchase the correct one, however. For fobs, batteries are typically CR2025 or CR2032, however you must consult the owner's manual of your vehicle to determine which type is required.

Remove the button pad and use cotton swabs and alcohol to clean it. These will help remove corrosion and clean the contacts which are typically colored gold. Once the contacts have been cleaned then you can put in the new battery. Be careful not to mix the two batteries because they have different diameters and voltages.

The next step is to check the battery's voltage. A multimeter that is calibrated to the battery's voltage range will give you a reliable reading. If the battery's current value is either above or below the threshold, it needs to be replaced. You can also try to start your car using a spare key, but this might not be successful in all instances. If the problem persists visit a CITROEN dealership with your V5 registration and personal identity documents. A CITROEN dealer will be able to retrieve the code for your vehicle's immobiliser system, and purchase a replacement battery.

Water damage

When the key fob gets underwater, it may lose its signal to the car. If this happens, it's a great idea to remove it of the pool, puddle, or washing machine as soon as possible. Once you've done that using the cotton swab along with isopropyl or electronic cleaner to dry the circuit board. If the circuit board is still not working then it's time for a new key fob.

Another reason that is commonly cited for Citroen remote control c3 not working is signal interference. This could happen when there is a strong electrical field close to the vehicle, or from other transmitters operating on the same frequency. When you leave the area of interference your key fob should be working normally again.

The Citroen C3 key fob could be inoperable due to worn buttons or signal interference issues, receiver module problems, a dead 12-volt battery, or a defective chip. You'll have to get it changed to a new program when this happens. This can be done by a trained mechanic or a Citroen dealer. If the issue is significant it is possible to replace the device. This is a relatively simple and inexpensive fix, but it's imperative to act swiftly. The longer you wait to fix the issue, the more difficult it becomes. It could be dangerous for passengers and you in the event that the issue isn't fixed.

Receiver module issue

If your key fob is not working it could be because the receiver module might have developed a fault. Water damage is among the numerous causes. It can happen when you drop your keys or wash them. You can attempt to resolve the issue by removing and cleaning the chip using isopropyl alcohol or an electronic cleaner. This will keep the chip from corrosion.

You can also try to reset the receiver module by disconnecting it from the car battery, and waiting for 10 minutes. You can then reconnect the battery and repeat the procedure. If this does not resolve the problem, you can take it to a dealership to be replaced.

Interference can also cause your key to stop working. It can be caused by other transmitters operating on the same frequency, or by objects inside your vehicle. If you are unable fix the issue, take your key fob in to a dealer and have it changed to a different frequency.

The key fob contains a short-range radio transmitter/radio-frequency identification (RFID) chip and antenna, which sends a distinct coded signal to the receiver module in your car. If the signal is not right it will not recognize the car key and display a message telling you "key not detected". This could be a major issue especially when trying to start your car.

Dead 12 volt battery

It is possible that your key fob has been damaged if it ceases to function after a change of batteries. This is especially true when the key fob is dropped or stepped on. However, it can also happen following servicing on your car that requires removal and reinstallation of the panels. When these panels are removed, the wires are exposed. If your fob is damaged, you might require a complete replacement.

Another possibility is that the remote is getting interference from other devices or places. G28 Car Keys could cause RF signals to become weak and prevent the car from understanding the remote. If this is the case you can reset the computer systems on board by disconnecting the 12 volt battery for around 15 minutes. This will erase any remaining power and allow the system to restart over.


It is essential to verify the size and quality of the battery prior to replacing it. If the replacement battery isn't big enough or has an incompatible voltage, it can damage the circuit board inside the fob's key. Before installing a new battery, you should clean the chip inside the fob in order to eliminate any corrosive substances. Using the right battery can help ensure that it is sealed and protected from moisture. Once the key fob is reinstalled, it should work normally. You should be able to use the second key even if your car displays a message that reads "key not found." It is possible to press the button several times before it responds.

Here's my website: https://www.g28carkeys.co.uk/citroen-car-key-replacements-near-me/