DTC B14F3-88: Unit Communication Error (HS-Can) [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 B14F3:88 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Unit communication error (HS-CAN)
Detection condition	The vehicle control module (VCM) received a BUS OFF signal (HS-CAN) from the driver monitoring camera unit for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	Malfunction in CAN BUS communication line between vehicle control module (VCM) and driver monitoring camera unit Driver monitoring camera unit malfunction Vehicle control module (VCM) malfunction
System wiring diagram	Not applicable