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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Driver Monitoring Camera Unit >> DTC B115D-49: Driver Monitoring Camera Unit Internal Malfunction [Driver Monitoring Camera Unit] >> Outline
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DTC B115D-49: Driver Monitoring Camera Unit Internal Malfunction [Driver Monitoring Camera Unit]: Outline

DTC B115D:49 [DRIVER MONITORING CAMERA UNIT] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Driver monitoring camera unit internal malfunction
Detection condition  
  • The driver monitoring camera unit detects a driver monitoring camera LED malfunction.
Fail-safe (See DTC TABLE [DRIVER MONITORING CAMERA UNIT (US)] .)
Possible cause  
  • Driver monitoring camera unit connector or terminal malfunction
  • Driver monitoring camera LED connector or terminal malfunction
  • Short to ground in driver monitoring camera LED following circuits:
    • Power supply circuit
    • Voltage detect circuit
    • Control circuit
      • Ground circuit
  • Short to power supply in driver monitoring camera LED following circuits:
    • Power supply circuit
    • Voltage detect circuit
    • Control circuit
      • Ground circuit
  • Open circuit in driver monitoring camera LED following circuits:
    • Power supply circuit
    • Voltage detect circuit
    • Control circuit
      • Ground circuit
  • Driver monitoring camera LED malfunction (built into center display)
  • Driver monitoring camera unit malfunction
G13718649Courtesy of MAZDA MOTORS CORP.