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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 B14F7-88: Unit Communication Error (HS-Can) [Vehicle Control Module] >> With Parking Assist Unit (Optical) >> Outline
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With Parking Assist Unit (Optical): Outline

DTC B14F7:88 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE - WITH PARKING ASSIST UNIT (OPTICAL)

System malfunction location Unit communication error (HS-CAN)
Detection condition
  • The vehicle control module (VCM) received a BUS OFF signal (HS-CAN) from the parking assist unit (optical) for 10 s.
Fail-safe (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause
  • Malfunction in CAN BUS communication line between vehicle control module (VCM) and parking assist unit (optical)
  • Parking assist unit (optical) malfunction
  • Vehicle control module (VCM) malfunction
System wiring diagram Not applicable