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Home >> Toyota >> 2022 >> RAV4 LE, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System (Except HV) - Circuit Tests (1 Of 4) & Diagnostic Codes >> CAN COMMUNICATION SYSTEM (for Gasoline Model) >> Bus Buffer ECU Communication Stop Mode [11/2024 - ] >> Description

Bus Buffer ECU Communication Stop Mode [11/2024 - ]: Description

Detection Item Symptom Trouble Area
Bus Buffer ECU Communication Stop Mode Any of the following conditions are met:
  • Communication stop for "Accessory Gateway" is indicated on the "Communication Bus Check" screen of the Techstream.

    Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ]

  • Communication stop history for "Accessory Gateway" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Accessory Gateway" is 6 or more.)

    Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ]

  • Communication system DTCs (DTCs that start with U) that correspond to "Bus Buffer ECU Communication Stop Mode" in "DTC Combination Table" are output.

    Refer to DTC COMBINATION TABLE [10/2023 - ]

  • Option connector (bus buffer ECU) branch wire or connector
  • Option connector (bus buffer ECU)