Lexus RX 450h GYL25L Headlight Wiring Diagram Manual – 2GR-FXS Hybrid (2020)

Technical Highlights

• OEM headlight wiring diagrams (LHD)

• LED low/high beam driver circuit schematics

• Adaptive High Beam (AHB) system wiring

• Automatic High Beam & cornering light control

• Headlight beam leveling system (front & rear sensors)

• Headlight cleaner motor & pump circuit

• DRL, clearance, turn & fog light wiring

• Headlight ECU (LH & RH) pinout and power supply

• CAN & LIN communication with Main Body ECU

• Production split diagrams (before / after Aug 2019)

Table of Content

• Headlight System (LHD)

  • LED Low Beam / High Beam Circuit

  • DRL & Clearance Light Wiring

  • Turn Signal Integration

  • Headlight ECU Sub-Assembly (LH / RH)

  • Cooling Fan & LED Driver Module

• Adaptive Lighting Systems

  • Adaptive High Beam (AHB) Wiring

  • Automatic High Beam Control

  • Cornering Light Circuit

  • High Beam Relay Control

• Headlight Leveling Control

  • Front & Rear Height Control Sensors

  • Leveling Actuator Circuit

  • Headlight ECU Level Control Logic

• Headlight Cleaner System

  • Headlight Cleaner Relay

  • Cleaner Motor & Pump Assembly

  • Washer Interlock Logic

• Fog Light System

  • Front Fog Light Wiring (LH / RH)

  • Fog Light Relay & Fuse Allocation

  • Body ECU Integration

• Power Supply & Protection

  • ECU-IG1 / ECU-B Fuse Circuits

  • Junction Connector Layouts

  • Ground Points & Earth Distribution

• Network Communication

  • CANH / CANL Headlight Communication

  • LIN Bus Control Lines

  • Main Body ECU Integration

• Variant & Production Differences

  • With / Without AHB

  • With / Without Cornering Lights

  • Before Aug 2019 / After Aug 2019 Production

File Information

• File Type: PDF (Digital Download)

• Document Type: OEM Electrical Wiring Diagram

• Pages: 14 pages

• Language: English

• Vehicle: Lexus RX 450h / RX 450hL

• Chassis Code: GYL25L

• Engine: 2GR-FXS Hybrid

• Model Year: 2020

• System Coverage: Headlight, AHB, AFS, DRL, Fog, Washer, Leveling

• Diagrams: OEM schematics, connector pinouts, relay logic, CAN/LIN

• Use Case: Diagnostics, troubleshooting, retrofitting, repair

• Software Required: Any PDF reader

• Delivery: Instant digital download