With Parking Assist Unit (Optical): Outline

WARNING: This page is about a different car, the 2021 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DTC B14F7:87 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE - WITH PARKING ASSIST UNIT (OPTICAL)

System malfunction location	Communication error between vehicle control module (VCM) and parking assist unit (optical)
Detection condition	The vehicle control module (VCM) detects that the parking assist unit (optical) received a communication error with the vehicle control module (VCM) for 15 s while the vehicle is being driven.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	Malfunction in CAN communication line between vehicle control module (VCM) and parking assist unit (optical) Malfunction in CAN communication line related to vehicle control module (VCM) Parking assist unit (optical) malfunction Vehicle control module (VCM) malfunction (built into body control module (BCM))
System wiring diagram	Not applicable
Connector diagram	Not applicable