Electrical problem
2002 Mercedes Benz CL55 V8 Two Wheel Drive Automatic 130000 miles

I have a 2002 CL55 and all of a sudden the car will not lock or unlock. Passenger door and trunk are locked and won't unlock. I even tried the valet ket but nothing worked. The drivers door is unlocked and won't lock. I tried both the key and the keyless card but all that happens is the lights flash but nothing changes. I don't know if it could be a fuse and if so which one. My car manual is locked in the truck. The car has the automatic truck closer.
Thanks