citroen c4 key fob programming C3 Key Fob Troubleshooting
citroen c1 key fob programming c3 citroen dispatch key fob fobs can not function for various reasons. The most common reasons are worn buttons that are not in contact with the battery, water damage, and receiver module issues. Check the 12 volt batteries.
Deprogramming could be the cause the key fob's not unlocking your car. This occurs when certain button actions send a signal to the onboard computer to erase the citroen berlingo van key from its list of access.
Dead coin battery
If the fob that you use to open the door on your citroen xsara picasso key fob C3 how much is a replacement citroen key no longer working, check first if the battery has died. The batteries that are in the fobs are tiny, round coins that can be replaced in just a few minutes. You can find these at general stores, home improvement stores, and some auto parts stores. Make sure you buy the correct type, though. Batteries for fobs are typically CR2025 or CR2032, however you should refer to the owner's manual for your vehicle to determine what type is required.