Car doors won't unlock through fob

Hello,
Just driving and pressed the central lock button which successfully locked all my car doors, howverr when I pressed to unlock it failed to do so.

I had to climb out the window to get out, and now my car successfully locks, but doesn't unlock.

I have to use my key to open the driver door, put passenger doors are completely locked shut.

The key fob is fine, and it does pick up when I lock the car, however when I press to unlock the car makes a quiet sound as if it's not functioning properly.

Is there anyway to fix this?

C3 desire 2004.

CitroenDoorTroubles wrote: ↑Thu May 24, 2018 5:07 pm I have to use my key to open the driver door, put passenger doors are completely locked shut.

This is normal if there is a problem with power or remote power unlocking.

CitroenDoorTroubles wrote: ↑Thu May 24, 2018 5:07 pm The key fob is fine, and it does pick up when I lock the car, however when I press to unlock the car makes a quiet sound as if it's not functioning properly.

This sounds like the unlock power to all the motors is only part functioning, like a low voltage or low current. Because it affects all the doors, I would start with the BSI moule (cabin fusebox). This has connectors to the power unlocking motors.

https://citroenc3owners.com/questions-a ... 3-t76.html

This topic has pictures of the BSI plug for central locking and lots of central locking info for the C3.