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20 Things That Only The Most Devoted Citroen Berlingo Key Fob Fans Should Know
Citroen C4 Key Fob Replacement

The Citroen C4 Picasso is a small family car/compact SUV with some genuinely innovative features. It's spacious enough for five people, and is a great vehicle to get around town.


Sometimes, a key fob stops working due to pairing issues. This issue can be easily fixed if the instructions are followed properly. For certain vehicles, a technician will require specialized tools.

Dead coin battery

The most common problem with remote key fobs is an inactive battery. It's a simple fix, however. All you have to do is replace the battery in the coin. These batteries can be found at your local auto retailer and resemble small silver coins. After replacing the battery, your car should be able to unlock and lock.

Another reason why your key fob isn't working is because of interference. It could be caused by many factors, such as weather conditions, objects or other transmitters on the same frequency. If this happens, it may be necessary for you to remove the ignition key and try again.

Deprogramming your key fob could also be the cause of the key's inability to function. This could occur if the key has been exposed to water, or if the battery isn't removed properly after replacing the key. Typically, you can repair the programming of your car by following the guidelines provided in the owner's manual. If you're not able to resolve the issue, you can contact an expert locksmith or dealer to assist you.

Water damage

Citroen C4 has a high level of reliability, but it's still a complex machine with hundreds of interconnected parts. It's not uncommon for a Citroen C4 to suffer a breakdown. In some instances it is easy to get the issue fixed. In some cases you may have to call for assistance or visit an expert. The most frequent causes of the C4 key fob not working is an unresponsive coin battery, damage to the water, signal interference and receiver module malfunctions.

Sweat or moisture on the circuit board of the key fob could cause water damage. The circuit could be tripped, resulting in a dead keyfob or battery drain. To avoid this happening, make sure to keep your key fob safe from water, or place it in a bag before using it.

You can also check the voltage of your battery by using an instrument. A successful test will show values between 12 and 13. If your battery isn't producing these values, it could be defective. This means you'll have to change the battery.

Faulty receiver module

A faulty receiver module can cause the key fob's functionality to cease. Citroen owners often encounter this issue, since the key fob needs to send an indication to the door handle in order to unlock the vehicle and start it. The key fob won't work if it fails to send the signal. It needs to be replaced. This is usually carried out at a dealership for vehicles or by a professional mechanic.

There are many issues that could happen with your Citroen C4 key fob. It could be due to a dead coin battery, signal interference, water damage or a damaged electronic chip. The first step in troubleshooting is to test the batteries on the key fob and look for obvious indications of damage. This can be done by opening the key fob and removing the battery to gain a better view.

Replace the battery if it has depleted. Be sure the new battery has the same size, voltage, and specifications. Also, make sure the fob is fully attached prior to replacing it.

A faulty 12 Volt battery

A majority of modern cars come with key fobs that let you to lock and unlock the vehicle from the distance. These devices send signals to the vehicle to control the locks. They are powered by batteries. Batteries may fail over time. The good news is that the replacement battery is cheap and easy to install. You can pry the fob off using a flat-bladed screwdriver, or you could find instructions in your owner's guide.

When replacing the battery, be sure that you're using the same type and size as the original. Different kinds of batteries have different voltages, which could cause the fob to stop working or display a low battery alert. Also, remember to orient the battery in a way that the plus and minus marks correspond to the orientation of the original. This ensures that the chip is receiving right signals. Alternatively, the problem may be caused by a defective receiver module. If this is the case it is recommended to contact your dealer for additional diagnostics and repairs.

Unpaired keys that require reconfiguring

Car key remotes can fail to function for many reasons. The majority of these issues can be quick and easy to fix. Most often it is a dead battery that is the cause. This can be easily repaired in a matter of minutes at most auto part shops. It is essential to make sure that the new battery is correctly installed. Metal retaining clips need to be tightened correctly and the battery's contacts should be clean.

Another possibility is a malfunctioning receiver module or signal interference. If G28 Car Keys fob isn't receiving a strong enough signal from the receiver, it may not be able to lock or unlock doors, start the car or operate the hands-free system. In such cases, you should try to reset the receiver by disconnecting the battery for a short period of time.

Smart keys are more expensive and cost up to $500 to replace. They are equipped with an electronic security device that disables the standard immobiliser of your car. To avoid these costs it's a good idea to have at minimum two keys working for your C4. The replacement remote key fob has been repaired and tested using new internal components before it is sent to you.