DTC U3000-49: Body Control Module (BCM) 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 U3000:49 (BCM) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Body control module (BCM) internal malfunction
Detection condition	The body control module (BCM) detects the internal malfunction.
Fail-safe	The system will enter the fail-safe function to ensure safety. If a specified period of time has elapsed or the vehicle has been driven for a specified period of time or more while in fail-safe mode, the ignition will remain stuck in off and the engine cannot be started.
Possible cause	Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable