citroen car key blade replacement from Citroen can stop working due to a number of causes. They can be due to worn buttons, poor contact between the battery and the water and receiver module issues. Check the 12 volt battery.
Deprogramming is a possible cause of your key fob not unlocking your car. This occurs when certain buttons send a signal to the onboard computer to remove the key from its access list.
Dead coin battery
If the key fob on your Citroen C3 is no longer working, first make sure the battery has gone out. The batteries inside the fobs are small round coins that can be easily changed in a matter of seconds. They can be found in general stores, home improvement stores and auto parts stores. Be sure to purchase the correct battery, however. Fobs usually require CR2025 or CR2032 however, you must refer to the owner's manual of your vehicle to determine the exact kind of battery your vehicle requires.
Before replacing the battery, take off the button pad and rub it using cotton swabs and alcohol. This will help remove corrosion, and clean the contacts that are usually gold-colored. After the contacts have been cleaned, it is now time to add the new battery. Just be careful not to mix the two types because they have different voltages and diameters.
The next step is to test the battery's voltage. You can get an accurate reading using a multimeter which is set to the battery's voltage range. If the battery shows a voltage that is higher or lower than its threshold, it is required to be replaced. You can also start your car with a spare key. However, this might not always work. If the issue continues you should visit an CITROEN dealer with your V5 registration document and personal identification documents. A CITROEN dealer can retrieve the code for your vehicle's immobiliser system, and purchase the replacement battery.
Water damage
If the key fob is submerged it could lose its signal. It is advised to get it out as soon as possible from the pool or puddle. Once you do dry the circuit board as best you can using the help of a cotton swab, dipped into isopropyl alcohol or an electronic cleaner. If it's still not working, it may be the right time to purchase a new key fob.
Another reason that can be cited for Citroen remote control c3 not working is signal interference. This can occur when there is a strong electrical field close to the vehicle, or from other transmitters on the same frequency. The key fob will begin working once you leave the zone of interference.
Additionally, the Citroen c3 key fob can not function due to worn buttons signals, signal interference, receiver module issues or a dead 12 Volt battery, or a damaged electronic chip. If this happens, you'll probably have to have it reset by a professional. This can be done by a skilled mechanic or at a Citroen dealership. If the issue is severe then you'll have to get it replaced. This is a simple and affordable fix, but it's important to act quickly. The longer you delay to fix the issue, the more deteriorated it becomes. It could pose a risk to you and your passengers If the issue isn't fixed.
Issue with the Receiver module
If your key fob ceases working, it might be due to the receiver module having developed a fault. Water damage is one of the many causes. This can occur when you drop your keys, or wash them. It is possible to fix the problem by removing and cleaning the chip with isopropyl alcohol, or electronic cleaner. This will prevent the chip from corrosion.
You could also try to reset the receiver module by disconnecting it from the car battery and waiting for 10 seconds. Then, reconnect the battery to the car and repeat the process. If this doesn't fix the issue, go to a dealer to have it replaced.
Another reason your key may not work is due to interference. This can be caused either by other transmitters that operate on the same frequency or objects in your vehicle. If you're not able to fix the problem, you can visit a dealer and have your key fob 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 accurate it will not recognize the car key and display a message stating "key not detected". This can be a frustrating problem, especially when you're trying to start your car.
Dead 12 volt battery
If your key fob stops working after a battery change the device could be damaged. This is most likely to happen if your key fob has been dropped or stepped upon, but can also occur following a repair that requires the removal of panels and reinstallation. Wires are exposed as panels are removed. If your fob is damaged, you may need to replace it completely.
A fob that receives interference from other devices and locations is another possibility. This can make RF signals weaker and prevent the car from recognizing the remote. If this is the case you can reset the computer systems on board by disconnecting the battery at 12 volts for approximately 15 minutes. This will remove any remaining power and allow the system to start again.
It is crucial to determine the size and quality of the battery before replacing it. If the replacement battery isn't big enough or has different voltage, it can damage the circuit board inside the fob's key. Before you install a battery you should clean the chip of the fob in order to eliminate any harmful substances. The correct type of battery can ensure that the key fob is sealed and protected from moisture. Once the key fob is been reinstalled, it will function normally. In most cases, you can use the second key to start your vehicle even in the event that it displays a message saying "key not found." You may have to press the button several times before it responds.