Notes

3 Reasons Commonly Cited For Why Your Citroen Ds3 Key Fob Replacement Isn't Performing (And The Best Ways To Fix It)
Citroen C3 Key Fob Troubleshooting

Citroen key fobs might cease to function due to a variety of reasons. There are a variety of reasons, including worn buttons and poor contact with the battery, water damage and receiver module issues. Examine the 12 volt batteries.

Deprogramming could be the cause that your key fob isn't unlocking your car. This happens when certain key sequences send an indication 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 functioning, first check if the battery is dead. Fobs utilize small coins-shaped batteries that can be replaced within a few minutes. They can be found in general stores, home improvement stores, and auto parts stores. Be sure to buy the correct model. For fobs, batteries are typically CR2025 or CR2032, however you should check the owner's manual for your vehicle to determine which type is required.

Remove the button pad and then use cotton swabs or alcohol to clean it. This will help remove corrosion and clean the contacts that are usually gold colored. Once the contacts are cleaned, you can put in the new battery. Be careful not to mix the two types as they have different voltages, sizes and diameters.

The next step is to determine the voltage of the battery. A multimeter calibrated to the battery's voltage range will give you an accurate reading. If citroen van key replacement is in the middle or above the threshold, it needs to be replaced. You could also try to start your car using an extra key, but this may not be successful in all instances. If the issue continues, visit an CITROEN dealer with your V5 registration form and personal identifi cation documents. A CITROEN dealer will be able to retrieve the code for your vehicle's immobiliser system and order the replacement battery.

Water damage

If the key fob falls underwater it may lose its signal to the car. It is recommended to remove it as quickly as possible from the pool or puddle. After this make use of a cotton swab, isopropyl or electronic cleaner to dry the circuit board. If the circuit board is still not working it could be time for a new key fob.

Signal interference is a different cause of Citroen remote controls not working. This can happen when there is an electrical field close to the car or other transmitters that operate on the same frequency. The key fob should begin working once you leave the area of interference.


The Citroen C3 key fob may cease to function due to worn buttons signals, signal interference issues receiver module issues or a dead 12-volt battery or a defective chip. If this happens, you'll require it to be reset by a professional. This can be done either by a qualified mechanic, or a Citroen dealer. If the issue is serious, you'll need to have it replaced. It's a relatively easy and affordable fix. But you have to take action quickly. The longer you put off taking action to address the issue, the more deteriorated it becomes. It could be dangerous for passengers and yourself in the event that the issue isn't addressed.

Receiver Module Issue

If your key fob isn't working the receiver module could have developed an issue. Water damage is one of the many causes. This could happen if you drop your keys or wash them. You can attempt to solve the issue by removing and cleaning the chip with isopropyl ethanol or electronic cleaner. This will prevent the chip from getting corroded.

You could 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 process. If this doesn't fix the issue, you can bring it to a dealer to be repaired.

Interference can cause your key to stop working. This could be caused by other transmitters operating on the same frequency, or by objects inside your vehicle. If you're not able to solve the issue, you can take your key fob in to a dealer and have it reset.

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 isn't correct the receiver module will not recognize the key and will display an error message that states the key is not detected. This could be a very frustrating issue, particularly when trying to start your vehicle.

Dead 12 volt battery

It is possible that the key fob you have purchased has been damaged if it ceases to function after changing batteries. This is most likely to happen when the key fob is dropped or stepped on. However, it could also occur following servicing on your car that requires the removal and reinstallation of the panels. When these panels are removed, the wires are exposed. If your fob was damaged, it might require replacement completely.

Another possibility is that the fob may be receiving interference from other devices or places. This can make the RF signals less effective and hinder the car's recognition of the remote. You can reset the onboard computer in this situation, by disconnecting the 12-volt battery for 15 minutes. This will remove any residual power, allowing the system to reboot.

Before replacing the battery it's important to make sure it's the correct size and type. If the battery you replace is too small or has different voltage, it could harm the circuit board inside the fob's key. Before you install a battery you must clean the chip of the fob to remove any corrosive substances. Using the right type of battery will ensure that it is properly sealed and protected from moisture. Once the key fob is installed, it will function normally. You can usually use the second key even if your car displays a message stating "key not detected." You may need to press the button a few times before it responds.

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