Its History Of Citroen Berlingo Key Fob Citroen C4 Key Fob Replacement

The Citroen C4 Picasso is a compact SUV that is small enough for a family, and has some genuinely innovative features. It's spacious enough to accommodate five people and it's an ideal vehicle to travel around the city.

Sometimes, a keyfob will not work due to pairing problems. G28 may be solved if instructions are followed properly. However, a professional equipped with specialized equipment is needed for specific makes of vehicles.

Dead coin battery

A dead battery is the most frequent problem that affects remote keys. However, it's an easy fix. You just need to replace the battery that is coin-sized. The batteries are available at your local auto store and resemble small silver coins. After replacing the battery, your car will be able to open and lock.

Interference is another reason your key fob won't work. This could be due to many factors, such as weather conditions, objects, or other transmitters on the same frequency. If this happens, it could be necessary to take the key from the ignition and try again.

Deprogramming your key fob could also be the cause of the key's inability to function. This can occur when the key has been exposed to water, or if the battery isn't removed properly after the key is replaced. Typically, you can repair the programming of your car by following the directions in the owner's guide. If you are unable to do this, consult a professional locksmith dealer to assist you.

Water damage

The Citroen C4 is a highly reliable car, but it's a machine with hundreds of interconnected components. It's not uncommon for a Citroen C4 to suffer a breakdown. In some instances, the issue is fixable. In other cases you may have to contact a professional for assistance or visit a mechanic. The most common reasons for the C4 key fob not working is the battery being dead, water damage, signal interference and receiver module issues.

Water damage can be caused by sweat or moisture on the key fob's circuit board. This can cause the circuit to become shorted, which can lead to a battery drain or a dead key fob. To avoid this happening, make sure to keep your key fob out from the water or put it in a plastic bag before you use it.

You can also check the voltage of your battery by using a multimeter. A successful test will give values between 12 and 13. If your battery doesn't produce these numbers, it could be defective. This means you'll have to replace the battery.

The receiver module is not working properly.

A defective receiver module could cause the key fob to stop functioning. This is a typical issue for Citroen owners, as the key fob needs to send a signal to the door handle to unlock and begin the vehicle. The key fob will not work if it fails to send the signal. It has to be replaced. This is typically done by a mechanic or a dealer.


There are many things that could go wrong with your Citroen C4 key fob. These include a dead battery signal interference, water damage or a damaged electronic chip. The first step to troubleshoot is to test the battery of the key fob and look for obvious evidence of damage. This can be done by opening the keyfob and removing its battery to have a better view.

Replace the battery if it has empty. Make sure that the new battery has the same voltage, size, and specification. Also, make sure the fob is completely connected prior to replacing it.

Problematic 12 Volt Battery

A majority of modern cars have key fobs that let you to lock or unlock the vehicle remotely. These devices send a signal the car to control the locks. They run on battery power. However, the batteries could fail over time. The good part is that the replacement battery is cheap and simple to replace. You can use a flat-blade screwdriver to pry open the battery or your owner's manual may contain instructions on how to do it.

Replace the battery with one of the same size and type as the original. Different types of batteries come with different voltages, which could cause the fob to stop working or display a low battery warning. Remember to also orient the battery in a way that the plus and minus marks are in the same direction as the original. This will ensure that the chip is receiving the correct signals. The issue could be caused by a faulty receiver module. In this scenario, it is recommended to call the dealer for further advice and repairs.

Unpaired keys that need Reprogramming

Car key remotes may stop working for a variety of reasons. The majority of these issues are quick and easy to fix. Most often the problem is caused by a defective battery in the coin-cell. is the cause. It can be repaired in a matter of minutes at the majority of auto parts shops. However, it's important to ensure that the new battery is correctly installed. Metal clips for retaining should be tightened properly and the battery's contacts should be clean.

Another possibility is a malfunctioning receiver module or signal interference. If the key fob does not receive a clear signal from the receiver it may not be able lock or unlock the doors either, start the vehicle or operate the hands-free system. In these instances it is recommended to reset the receiver by disconnection of the battery for a couple of minutes.

Smart keys are more expensive and could cost as high as $500 to replace. They come with a security chip that disables the immobiliser of your car. It is recommended to have two working keys on hand for your C4 to save money on these costly costs. This key fob replacement is upgraded with new internal components and is tested before delivering to you.