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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 234 (Can Communication System (Hybrid) - Circuit Tests (1 Of 4) & Diagnostic Codes) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Headlight ECU RH Communication Stop Mode [07/2019 - 10/2019] >> Description

Headlight ECU RH Communication Stop Mode [07/2019 - 10/2019]: Description

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Detection Item Symptom Trouble Area
Headlight ECU RH Communication Stop Mode Any of the following conditions are met:
  • Communication stop for "HL AutoLeveling/AFS/AHS (Sub)" is indicated on the "Communication Bus Check" screen of the Techstream.

    Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 08/2020]

  • Communication stop history for "HL AutoLeveling/AFS/AHS (Sub)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "HL AutoLeveling/AFS/AHS (Sub)" is 6 or more.)

    Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 08/2020]

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

    Refer to DTC COMBINATION TABLE [06/2018 - 10/2019]
  • Headlight ECU sub-assembly RH branch line or connector
  • Power source circuit of headlight ECU sub-assembly RH
  • Headlight ECU sub-assembly RH ground circuit
  • Headlight ECU sub-assembly RH
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