
If your C3's keypad stopped functioning suddenly it could be due a defective receiver module. If the key fob remains functioning, the issue could be due to something else, such as water damage or a dead battery for the coin.
citroen c1 replacement key fob intends to cater to the masses by offering eC3. It offers several facilities such as remote diagnostics through virtual computers as well as a specialized customer service application.
Dead coin battery
If the key fob's unlock button doesn't working, there is an issue with the battery of the coin. The battery's lifespan should be between three and four year with regular use. However, it can suddenly go out. The automakers have created fail-safes that let you lock and start your car even if your key fob is dead.
The battery in the key fob is secured by clips made of metal that form an electrical circuit. If these are worn or dirty, the battery will not be able to receive the power. The battery also needs to be the correct size and type. If the battery is too small or large, it will not fit on the fob and won't function properly.
Key fob batteries are available under various names, including CR2016 and even CR2032. They are not interchangeable. Consult your owner's guide or look for a sticker on the fob that has the details.
Once you've found the correct battery and it's replaced, it's possible to replace it in just a few moments. Most fobs have a slider, switch, or gap that you can use to break open the cover and exchange the old battery to get an alternative. Ensure that the new battery is of the same voltage as the previous one and that it is inserted correctly.
Water damage
Water is bad for electronics even if they've survived a wash cycle or a dip. It can damage batteries and cause serious damage to the electronic chip inside. There are several things you can do to prevent the damage.
It is important to first take out the battery and then dry the inside as much as you can. You can also use a cotton swab which has been dipped into 90 percent alcohol to clean the battery and the circuit board.
After you have cleaned the key fob, you must let it dry for several days. You can speed it up by placing it on a shelf to ensure it isn't disturbed. When you're sure the battery is dry, put in a new one and use it as usual.
If your key fob still not working, it could be that the receiver module inside your car is malfunctioning and is unable to transmit signals. It can be costly to repair, but it's well worth trying if you want to avoid having to buy a new one.
The most effective method to fix a malfunctioning key fob, is to replace the battery. Removing the battery can bring back the radio signal and make your key fob work once more. If the problem continues, you should seek out professional help.
A malfunctioning receiver module
In some instances there may be a problem with the receiver module of the key fob may hinder it from receiving or transmitting proper signals. In this case the car will not recognize the remote control key. It won't unlock or start. In this scenario you'll have to purchase another replacement key for citroen c3.
Read the owner's manual before trying to program the key fob yourself. First, make sure that the battery in the key fob is in good health and that all of its buttons are functioning. Close the doors and remove any other devices from the aftermarket, such as alarms or radios out of the vehicle.
You could also try cleaning the chip with isopropyl alcohol or electronic cleaner. If the chip is damaged, you'll have to replace it.
After you've cleaned your key fob, remove the circuit board. Then, clean the contacts using alcohol swabs and let them dry. After the contacts have dried, you can reassemble the key fob and test it. If the key fob still doesn't work, then it may be necessary to replace the battery. Choose a replacement battery that has the same voltage level as the battery you replaced. It's also a good idea to check that the battery is in correctly because the contact points can be extremely sensitive.
Keyless entry system malfunctions
The key fob is an excellent convenience for cars but it can also be frustrating when it stops working. The good news is that most times it's simple to get it working again. A dead battery in the coin slot is the most frequent reason for a malfunctioning fob. It can be replaced in a matter of minutes. Other causes include signal interference a bad receiver module, and other electrical problems.
The first thing to do is to make sure that the battery is of the right voltage and is correctly put in. The correct type of battery is also important. Using a wrongly sized, or polarized batteries could harm the internal circuitry. You should also examine the fuses to make sure they're not blown or haven't melted.
A transponder inside the key may be damaged or not functioning properly. This will require a further diagnosis by a professional mechanic or car dealer.
