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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> On-Board Diagnostic - Vehicle Control Module (2 Of 2) >> DTC U0140-00: Communication Error With Body Control Module (BCM) [Vehicle Control Module] >> Outline

DTC U0140-00: Communication Error With Body Control Module (BCM) [Vehicle Control Module]: Outline

DTC U0140:00 [VEHICLE CONTROL MODULE] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with body control module (BCM)
Detection condition
  • The vehicle control module (VCM) cannot receive CAN signal from body control module (BCM) for 10 s.
Fail-safe (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause
  • Vehicle control module (VCM) malfunction (built into body control module (BCM))
  • Body control module (BCM) malfunction
System wiring diagram Not applicable