DTC B14F3-87: Communication Error Between Vehicle Control Module (VCM) And Driver Monitoring Camera Unit [Vehicle Control Module]: 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 B14F3:87 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

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