DTC B12BD-01: Rear Mount Camera Circuit Malfunction [Parking Assist Unit (Optical)]: Outline

DTC B12BD:01 [PARKING ASSIST UNIT (OPTICAL)] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Rear mount camera circuit malfunction
Detection condition	The parking assist unit (optical) detects a malfunction in the rear mount camera circuit for 5 s.
Fail-safe	(See DTC TABLE [PARKING ASSIST UNIT (OPTICAL) (US)] .)
Possible cause	Rear mount camera connector malfunction Parking assist unit (optical) connector malfunction Short to ground in rear mount camera circuit Short to power supply in rear mount camera circuit Open circuit in rear mount camera circuit Rear mount camera malfunction Parking assist unit (optical) malfunction
Courtesy of MAZDA MOTORS CORP.