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Home >> Lexus >> 2021 >> LC 500h >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System - Service Information >> Steering Control Ecu >> Removal [05/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the front steering control ECU removal/installation are shown below.

NECESSARY PROCEDURE AFTER PARTS REMOVED/INSTALLED/REPLACED

Replacement Part or Procedure Necessary Procedure Effect/Inoperative when not Performed Link
VGRS ECU (front steering control ECU) Perform Actuator Angle Neutral Point Calibration and Initialization
  • Variable gear ratio steering system
  • Steering wheel off-center
  • DTCs are output
Refer to CALIBRATION [01/2017 - ]

HINT: 

When the cable is disconnected/reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.