Notes

Three Common Reasons Your Citroen Ds3 Key Fob Replacement Isn't Performing (And What You Can Do To Fix It)
Citroen C3 Key Fob Troubleshooting

Key fobs from Citroen can stop working due to a number of reasons. This includes worn buttons, poor contact with the battery, water damage and receiver module problems. Check the 12 volt battery.

Deprogramming could be the cause that your key fob isn't unlocking your car. This occurs when certain button actions send an alert to the onboard computer to erase the key from its access list.

Dead coin battery

If your Citroen C3's main fob is not working The first thing you need to examine is whether the battery is dead. The batteries that are in the fobs are tiny, round coins that can be replaced in a matter of minutes. They are available in general stores, home improvement stores, and auto parts stores. Make sure you purchase the right type. Fobs typically require CR2025 or CR2032 However, you should refer to the owner's manual of your vehicle to determine the type of battery that your car requires.

Remove the button pad, and then use cotton swabs or alcohol to clean it. This will remove any corrosion and clean the contacts that typically have a gold color. Once the contacts are cleaned, you can insert the new battery. Just be careful not to mix the two types because they have different diameters and voltages.

The next step is to test the battery's voltage. A multimeter set to the battery's voltage range should provide you with a precise reading. If the battery's current value is either above or below the threshold, it needs to be replaced. citroen c1 key replacement can also try the car's start using a spare key, however this might not work in all cases. If the issue continues, go to an CITROEN dealership with your V5 registration and personal identification documents. A CITROEN Dealer can retrieve the code of your vehicle's immobiliser and can order a new battery.

Water damage

If the key fob is submerged it may lose its signal. If this happens, it's a great idea to remove it of the puddle, pool, or washing machine as quickly as you can. After that make use of a cotton swab, isopropyl or electronic cleaner to clean the circuit board. If the key fob isn't working, it could be time to invest in another one.

Another reason that is commonly cited for Citroen c3 remote control not working is signal interference. This could happen when there is an intense electrical field close to the car or from other transmitters on the same frequency. Once you have left the interference area, your key fob will start working again.

Lastly, the Citroen C3 key fob could not function due to worn buttons and receivers, signal interference, module issues, a dead 12 volt battery, or an indefective electronic chip. If this happens, then you'll require it to be replaced by a skilled technician. This can be accomplished by a certified mechanic or a Citroen dealer. If the problem is serious you may have to replace it. This is a relatively simple and inexpensive fix, but it's important to act quickly. The longer you put off fixing the issue, the more serious it becomes. It could be dangerous for passengers and you when the issue is not fixed.

Issue with the Receiver module

If your key fob ceases functioning, it could be because the receiver module has developed an issue. Water damage is among the many causes. It can happen when you drop your keys or wash them. You can try to solve the problem by removing your chip and cleaning it with isopropyl, or electronic cleaner. This will prevent corrosion of the chip.

You can also reset the receiver module by disconnecting it from the car battery and letting it sit for 10 seconds. Then, reconnect the battery and repeat the procedure. If this isn't enough to fix the issue, you can bring it to a dealer to be repaired.

Another reason why your key might not work is due to interference. This can be caused by other transmitters that use the same frequency as your key fob, or by objects inside your vehicle. If you are unable to fix the issue, bring your key fob to an authorized 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 isn't right the receiver won't recognize the car key and display a message saying "key not recognized". This is a problem that can be frustrating especially 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 a change in batteries. This is most likely to happen when the key fob has been dropped or stepped on, however it also can occur after servicing on your car that requires the removal and reinstallation of the panels. Wires are exposed when the panels are removed. If your fob was damaged, it might require replacement completely.

A fob that is receiving interference from other devices and locations is a different possibility. This could make RF signals weaker and block the car's recognition of the remote. You can reset your on-board computer in this scenario by disconnecting your 12-volt battery for 15 minutes. This will erase any remaining electrical energy, allowing the system to restart.


Before replacing the battery it's crucial to ensure that it's the right size and type. If the battery you replace isn't big enough or has an incompatible voltage, it could damage the circuit board within the fob's key. Before installing a new battery, you should clean the chip of the fob to eliminate any corrosive substances. Making sure you choose the right battery can help ensure that it is sealed and protected from moisture. After the key fob has been reinstalled, it should work normal. In most cases, you can use the second key to start your car, even when it displays a message saying "key is not detected." It is possible to press the button several times before it responds.

Homepage: https://www.thekeylab.co.uk/citroen-car-keys/