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Home >> Lexus >> 2021 >> LC 500 2D Coupe >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System - Circuit Tests (Coupe) (1 Of 6) & Diagnostic Codes >> Can Communication System >> Steering Control ECU Communication Stop Mode [05/2023 - ] >> Description

Steering Control ECU Communication Stop Mode [05/2023 - ]: Description

Detection Item Symptom Trouble Area
Steering Control ECU Communication Stop Mode Any of the following conditions are met:
  • Communication stop for "Steering Control (VGRS)" is indicated on the "Communication Bus Check" screen of the Techstream.

    Refer to PROBLEM SYMPTOMS TABLE [05/2023 - ]

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

    Refer to PROBLEM SYMPTOMS TABLE [05/2023 - ]

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

    Refer to DTC COMBINATION TABLE [05/2023 - ]

  • Front steering control ECU assembly branch wire or connector
  • Power source circuit of front steering control ECU assembly
  • Front steering control ECU assembly ground circuit
  • Front steering control ECU