Mazda CX-30 2020 Owner's Manual page 362

When Driving
i-ACTIVSENSE
▼ System Problem Indication
Centre display indication
"No camera signal." is displayed
Screen is pitch-black and blank
4-214
Cause
The control unit might be damaged. Have your vehicle inspected
The camera might be damaged.
Action to be taken
by an expert repairer (we
recommend an Authorised
Mazda Repairer).