DTC B2002-49: Electrical Supply Unit (ESU) Internal Malfunction (BCM): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC B2002:49 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Electrical supply unit (ESU) internal malfunction
Detection condition	The body control module (BCM) detects the electrical supply unit (ESU) internal malfunction.
Fail-safe	Not applicable
Possible cause	Electrical supply unit (ESU) malfunction Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable