Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Calibration

CALIBRATION

DESCRIPTION

(a) When the 4WD ECU assembly is replaced with a known good one from another vehicle or the acceleration sensor (airbag ECU assembly*1 or yaw rate sensor assembly*2) is replaced, perform calibration.

(b) Follow the chart to perform calibration.

Part Replaced

Necessary Operation

4WD ECU assembly (When replaced with a known good one from another vehicle)

Clear zero point calibration data

Acceleration sensor (airbag sensor assembly)*1

Acceleration sensor (yaw rate sensor assembly)*2

  1. Clear zero point calibration data
  2. Perform yaw rate and acceleration sensor zero point calibration

HINT:

  • When the 4WD ECU assembly is replaced with a new one, calibration is unnecessary.
  • *1: w/ Optitron Meter Type
  • *2: w/ TFT Meter Type

PERFORM CALIBRATION

(a) Clear the zero point calibration data.

(1) Turn the engine switch off.

(2) Connect the Techstream to the DLC3.

(3) Turn the engine switch on (IG).

(4) Turn the Techstream on.

(5) Enter the following menus: Chassis / Four Wheel Drive / Utility / Reset Memory.

Chassis > Four Wheel Drive > Utility

Tester Display

Reset Memory

(6) Operate the Techstream to clear the data.

    System Diagram
    SYSTEM DIAGRAM Communication Table Transmitting ECU Receiving ECU Signal Communication Method *1: w/ Optitron Meter Type *2: w/ TFT Meter Type Skid control ECU (Brake actuator asse ...

    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vehicle Stability Control System: ABS Pump Motor Control Circuit Open (C052C13,C052C49,C052F14)
    DESCRIPTION The motor relay and motor fail safe relay are built into the brake actuator assembly. When the skid control ECU (brake actuator assembly) operate ABS, TRAC, VSC, brake hold or brake assist, the motor relay turns ON and drives the motor pump built into the brake actuator assembly. If any ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door Drive Unit: Installation
    INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. INSTALL BACK DOOR DAMPER STAY LOWER BRACKET (a) Clean the bolt holes in the vehicle body. (b) Install the back door damper stay lower bra ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0153