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Home >> Mazda >> 2021 >> 3 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> On-Board Diagnostic - Telematics Communication Unit >> DTC U2300-56: Configuration Error (Ineffective/Non-Interchangeable Data Read) [Telematics Communication Unit] >> Outline

DTC U2300-56: Configuration Error (Ineffective/Non-Interchangeable Data Read) [Telematics Communication Unit]: Outline

DTC U2300:56 [TELEMATICS COMMUNICATION UNIT] DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Configuration error (Ineffective/non-interchangeable data read)
Detection condition  
  • The telematics communication unit received invalid configuration data from body control module (BCM).
Fail-safe Not applicable
Possible cause  
  • DTCs are stored in the body control module (BCM).
  • Inappropriate telematics communication unit replacement procedure
  • Body control module (BCM) configuration data write error
  • Malfunction in CAN bus communication line
  • Telematics communication unit malfunction
  • Body control module (BCM) malfunction
System wiring diagram Not applicable
Connector diagram Not applicable