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Home >> Lexus >> 2025 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Can Communication System - Circuit Tests (2 Of 9)) >> CAN COMMUNICATION SYSTEM (for HEV Model) >> Headlight ECU LH Communication Stop Mode [11/2021 - 03/2023] >> Description

Headlight ECU LH Communication Stop Mode [11/2021 - 03/2023]: Description

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
Detection Item Symptom Trouble Area
Headlight ECU LH Communication Stop Mode Communication stop for "Headlight Control" is indicated on the "Communication Bus Check" screen of the GTS.
Refer to DIAGNOSIS SYSTEM [11/2021 - 03/2023]
  • Headlight ECU sub-assembly LH branch line or connector
  • Power source circuit of headlight ECU sub-assembly LH
  • Headlight ECU sub-assembly LH ground circuit
  • Headlight ECU sub-assembly LH
  • Semiconductor power integration ECU
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