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DTC B2785: Communication Malfunction between ECUs Connected by LIN: Description

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

DTC No. DTC Detection Condition Trouble Area
B2785 The certification ECU detects a malfunction in the LIN communication bus between components related to certification continuously 3 times.
  • ECU aggregation box assembly (certification ECU)
  • Main body ECU (instrument panel junction block)
  • ID code box
  • Steering lock actuator assembly (steering lock ECU)
  • Harness or connector
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