Razy

Hi all,
Mazda 3, 2014, 2.0 petrol hatch
SCBS Malfunction error and yellow icon on dashboard
Tester says no faults. I checked the cables and tension and I found on black “0”, blue+black “14,5”, white “2.5” and red+blue “2.7”, so, my plug seems to be working fine.
i bought a new front camera and still the error is there.
if the camera is ok and cables are fine, what seems to be the problem?
has anyone had the same problem?
please help.
thank you