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DTC B2785: Communication Malfunction between ECUs Connected by LIN [06/2015 - ]: Description

The certification ECU intermittently monitors the LIN communication bus between the components related to certification. DTC B2785 is stored when a malfunction in the LIN communication bus between the components related to certification is detected 3 times consecutively.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2785 Communication Malfunction between ECUs Connected by LIN The certification ECU detects a malfunction in the LIN communication bus between components related to certification 3 times consecutively.
  • Certification ECU (smart key ECU assembly)
  • ID code box (immobilizer code ECU)
  • Transmission Control ECU Assembly
  • Harness or connector