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Home >> Lexus >> 2019 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Four Wheel Drive Control System - Diagnostics - Introduction) >> Four Wheel Drive Control System >> System Diagram [09/2014 - 09/2020] >> System Diagram [09/2014 - 09/2020]
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System Diagram [09/2014 - 09/2020]

WARNING: This page is about a different variant/trim than selected.
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COMMUNICATION TABLE

Transmitting ECU Receiving ECU Signal Communication Method
ECM 4WD ECU assembly
  • Shift position sensor signal
  • Throttle position sensor signal
  • Accelerator pedal position signal
  • Actual output torque signal
  • TC terminal status signal
CAN communication system
Skid control ECU (Brake actuator assembly) 4WD ECU assembly
  • Wheel speed sensor signal
  • Stop light switch signal
  • VSC brake fluid pressure command signal
  • AWD lock request signal
  • AWD lock release request signal
  • Yaw rate follow-up control selection signal
  • ABS control in operation signal
CAN communication system
Steering sensor 4WD ECU assembly
  • Steering angle signal
  • Steering sensor malfunction signal
  • +B open malfunction signal
CAN communication system
4WD ECU assembly Skid control ECU (Brake actuator assembly) AWD control hydraulic pressure signal CAN communication system
4WD ECU assembly Combination meter assembly
  • AWD warning message request signal
  • Slip indicator light illumination and blinking request signal
  • DTC signal
  • Diagnostic sender system number signal
CAN communication system