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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Body Control Module (BCM) (1 Of 2) >> DTC B1511-14: Taillight (Trunk Lid Light) Circuit Or License Plate Light Circuit Malfunction [(BCM)] >> Hatchback-5HB >> Outline

DTC B1511-14: Taillight (Trunk Lid Light) Circuit Or License Plate Light Circuit Malfunction [(BCM)]: Hatchback-5HB: Outline

DTC B1511:14 (BODY CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE (Hatchback-5HB)

System malfunction location Taillight (liftgate light) circuit or license plate light circuit malfunction
Detection condition  
  • The electrical supply unit (ESU) detects a short to ground in the taillight (liftgate light) circuit or license plate light circuit.
Fail-safe Not applicable
Possible cause  
  • Liftgate light (LH) connector or terminal malfunction
  • Liftgate light (RH) connector or terminal malfunction
  • License plate light (LH) connector or terminal malfunction
  • License plate light (RH) connector or terminal malfunction
  • Electrical supply unit (ESU) connector or terminal malfunction
  • Short to ground in taillight (liftgate light) signal circuit
  • Short to ground in license plate light signal circuit
  • Taillight (liftgate light) (LH) malfunction
  • Taillight (liftgate light) (RH) malfunction
  • License plate light (LH) malfunction
  • License plate light (RH) malfunction
  • Electrical supply unit (ESU) malfunction
  • Body control module (BCM) malfunction
G13716791Courtesy of MAZDA MOTORS CORP.