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citroen xsara picasso key fob C3 Key Fob Troubleshooting

Key fobs from Citroen can malfunction due to a number of reasons. These include worn buttons poor contact between the battery and the water and receiver module issues. Make sure the batteries are 12 volts.

If the key fob can not unlock your car, you may be experiencing deprogramming. This occurs when certain buttons send an alert to the onboard computer asking that the key be removed from its list of keys.

Dead coin battery

If the fob that you use to open the door on your citroen c4 grand picasso key fob not working C3 is no longer working, first determine if the battery is dead. Fobs are small, coin-shaped batteries that can be replaced in a few minutes. You can find these in general stores, home improvement stores, and a few auto parts stores. Make sure you buy the correct model, however. Batteries for fobs are usually CR2025 or CR2032, however you must consult the owner's manual of your vehicle to determine what kind is required.

Before replacing the battery, remove the button pad and rub it with cotton swabs and alcohol. These will help remove corrosion and clean the contacts, which are typically colored gold. After cleaning the contacts, you can insert the new battery. Be cautious not to mix the two kinds as they differ in voltage, dimensions and shapes.

Next, you will need to assess the voltage of the battery. You can get a precise reading using a multimeter that is set to the battery voltage range. If the battery is at a value above or below its threshold, it has to be replaced. You can also start your car with a spare key. However, this may not always work. If the problem persists visit a CITROEN dealership with your V5 registration and identification documents. A citroen berlingo key replacement dealer can locate the code for your vehicle's immobiliser system, and order a replacement battery.

Water damage

If the key fob is submerged, it could lose its signal to the car. It's best to get it out as soon as you can out of the pool or puddle. After you've done this then use the cotton swab along with isopropyl or electronic cleaner to dry the circuit board. If the key fob isn't working, it may be time to purchase another one.

Signal interference is a different cause of Citroen remote control not working. This can occur when there is an electrical signal near the car or other transmitters operating on the same frequency. The key fob will begin working again after you have left the area of interference.

The Citroen C3 key fob could be inoperable due to worn buttons or signal interference, receiver module issues and a dead 12 volt battery, or an indefective electronic chip. If this happens, you'll probably need to get it reset by a professional. This can be done by a certified mechanic or a Citroen dealer. If the issue is serious you may have to replace the device. This is a fairly easy and cost-effective fix, however it's important to act quickly. The longer you put off fixing the issue, the worse it gets. If the issue isn't fixed, it can be dangerous for you and your passengers.

Issue with the Receiver module

If your key fob is not functioning, the receiver module may have developed a fault. Water damage is among the many reasons. This can occur when you accidentally drop your keys or wash them. You can try to fix it by removing the chip and cleaning it with isopropyl, or electronic cleaner. This will stop the chip from getting corroded.

You can also try to reset the receiver module by disconnecting it from the car battery, and waiting for 10 minutes. Then reconnect the battery to the vehicle and repeat the process. If this doesn't fix the issue, visit a dealership to get it replaced.

Interference can cause your key to stop working. This could be caused by other transmitters that operate on the same frequency as your key fob, or by objects in your vehicle. If you're unable to fix the issue, you can go to a dealer to have your key fob reprogrammed.

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 module won't recognize the key and will display a key not detected message. This can be a frustrating problem 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 changing batteries. This is most likely to happen in the event that the key fob was dropped or stepped on. However, it also can occur after repair on your vehicle that requires removal and reinstallation of the panels. When the panels are removed, wires are exposed. If your fob is damaged, it might need to be replaced entirely.

A fob that receives interference from other devices or locations is a second possibility. This can make RF signals weaker and hinder the car from being able to recognize 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 restart.

It is important to check the size and type of the battery before replacing it. The circuit board in the fob's circuit board could be damaged in the event that the replacement battery is too big or has a different voltage. Before installing a battery you must clean the chip inside the fob to eliminate any corrosive substances. The proper type of battery will ensure that the key fob is properly sealed and shielded from moisture. Once the key fob is been reinstalled, it should function normally. You can usually use the second key even when your car displays a message stating "key not found." It might be necessary to press the button a few times before it responds.