DTC U2300-56: Configuration Data Of Body Control Module (BCM) Is Invalid [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 U2300:56 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Configuration data of body control module (BCM) is invalid
Detection condition	The vehicle control module (VCM) received invalid configuration data from the body control module (BCM) for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	Inappropriate body control module (BCM) replacement procedure Configuration data of body control module (BCM) and vehicle control module (VCM) not matched Body control module (BCM) configuration data write error Configuration not performed after body control module (BCM) replacement Vehicle control module (VCM) malfunction (built into body control module (BCM)) Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable