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Home >> Mazda >> 2023 >> 3 Select, 4D Hatchback >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Body Control Module (BCM) (4 Of 4) >> DTC U3000-49: Body Control Module (BCM) Internal Malfunction [Body Control Module (BCM)] >> Outline
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DTC U3000-49: Body Control Module (BCM) Internal Malfunction [Body Control Module (BCM)]: Outline

DTC U3000:49 - BODY CONTROL MODULE (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