Citroen C4 Key Fob Replacement
The Citroen C4 Picasso, a compact SUV/small family car is packed with truly innovative features. It has decent space for five people and is an excellent way to get around town.
Sometimes, a key fob stops functioning due to pairing issues. If you follow the instructions correctly, the issue can be resolved easily. For certain vehicles, a professional will be required to use specialized tools.
Dead coin battery
A dead battery is the most frequent issue that affects remote key fobs. It's an easy fix, however. You only need to replace the coin-sized battery. These batteries are available at your local auto store and resemble small silver coins. After you replace the battery, your vehicle should be able unlock and lock.
Interference is a different reason for why your key fob may not work. This could be due to various factors, including objects, weather conditions, or other transmitters operating on the same frequency. If this happens, it might be necessary to remove the key from the ignition and try again.
Deprogramming your key fob could also be the cause for the failure of the key to function. This could happen if the key has been exposed to water, or if the battery is not removed properly after replacing the key. Usually, you can re-set the car's programming by following the guidelines provided in the owner's manual. If you cannot do it, you can ask an expert locksmith or dealer to do it for you.
Water damage
Citroen C4 has a high level of reliability, however it is still a complex machine that has hundreds of interconnected parts. It's not common for a car like the Citroen to suffer a breakdown. In some cases the issue is easily fixed. In other cases the situation, you might have to visit a mechanic or call for assistance. The most common reasons for the C4 key fob not working are a dead coin battery signals interference, water damage and receiver module issues.
Moisture or sweat on the circuit board of the key fob may cause water damage. This can short the circuit and result in dead key fobs or battery drain. Keep G28 out of the water and put it in a plastic bag.
You can also check the voltage of your battery by using an instrument. A successful test will reveal numbers between 12 and 13. If your battery doesn't produce these values, it may be defective. This means that you will have to replace your battery.
Receiver module that is defective
A faulty receiver can cause the keyfob to cease to function. This is a common problem for Citroen owners, as the key fob needs to send a signal through the door handle to open and start the vehicle. The key fob won't function if it is unable to transmit the signal. It must be replaced. This is usually done by a mechanic or a dealer.
Citroen C4 keys can malfunction for a variety. This can be a dead coin-cell battery, water damage or signal interference. To begin troubleshooting, test the key fob batteries and look for any obvious signs. This can be done by opening the key fob and removing the battery to get a better view.
If you discover a dead battery Replace it with a new one. Be sure the new battery has the same voltage, size, and specification. Make sure you connect the fob before replacing it.
Poor 12 volt battery
Most newer cars come with key fobs that allow you to lock and unlock your vehicle from a distance. These devices transmit a signal to the vehicle that controls the locks. They are powered by batteries. Batteries can degrade over time. The good news is that the replacement battery isn't expensive and easy to install. You can pry the fob off with a flat-bladed screwdriver. Or you can get instructions in your owner's handbook.
Replace the battery with a new one that is the same type and size as the original. Different kinds of batteries have different voltages, which can cause the fob's function to cease or display a low battery alert. Also, make sure to position the battery so that the plus and minus marks correspond to the orientation of the original. This ensures that the chip is receiving proper signals. In other cases, the issue could be caused by a faulty receiver module. In this instance, it is recommended to contact the dealer for further diagnosis and repairs.
Keys that are not paired require reprogramming
Car key remotes can fail to function for various reasons. The majority of these issues are easily and quickly fixed. Most of the time it is a dead battery that is the cause. This 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 properly installed. Metal retaining clips should be properly tightened, and the contacts of the battery should be cleaned.
Another possibility is that of a damaged receiver module or signal interference. If the key fob is unable to receive a clear signal from the receiver, it may not be able to lock or unlock the doors and start the vehicle, or operate the hands free system. In these instances you can reset the receiver by taking off the battery for a period of time.
Smart keys, which include an integrated security chip that disables the vehicle's standard immobiliser system they are more expensive than traditional metal keys and can cost up to $500 to replace. To avoid these costly costs it's recommended to have at least 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.