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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Vehicle Control Module (1 Of 2) >> DTC B14F3-87: Communication Error Between Vehicle Control Module (VCM) And Driver Monitoring Camera Unit [Vehicle Control Module] >> Outline
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DTC B14F3-87: Communication Error Between Vehicle Control Module (VCM) And Driver Monitoring Camera Unit [Vehicle Control Module]: Outline

DTC B14F3:87 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error between vehicle control module (VCM) and driver monitoring camera unit
Detection condition
  • The vehicle control module (VCM) detects that the driver monitoring camera unit received a communication error with the vehicle control module (VCM) for 15 s.
Fail-safe (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause
  • Malfunction in CAN communication line between vehicle control module (VCM) and driver monitoring camera unit
  • Malfunction in CAN communication line related to vehicle control module (VCM)
  • Driver monitoring camera unit malfunction
  • Vehicle control module (VCM) malfunction (built into body control module (BCM))
System wiring diagram Not applicable
Connector diagram Not applicable