Details On DTCs

WARNING: This page is about a different car, the 2024 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

U2300: 54 (ALH/AFS/ALV) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Configuration error (data not received)
Detection condition	Determination conditions	The auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module cannot receive the configuration data from the body control module (BCM).
	Preconditions	Not applicable
	Malfunction determination period	Not applicable
Fail-safe	Control of the headlight auto leveling system is continued. Control of the adaptive LED headlights is continued. (with adaptive LED headlights)
Vehicle status when DTCs are output	Not applicable
Possible cause	Inappropriate previous module replacement procedure Configuration data writing error DTCs are stored in the body control module (BCM). Body control module (BCM) malfunction Auto leveling control module/adaptive front lighting system (AFS) control module/adaptive LED headlights control module malfunction