POWER STEERING ECU(for LHD) REMOVAL

CAUTION / NOTICE / HINT

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

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedures Effects / Inoperative when not performed Link
Disconnect cable from negative battery terminal Memorize steering angle neutral point

  • Lane departure alert system (w/ Steering Control)

  • Simple intelligent parking assist system*1

  • Toyota parking assist-sensor system (w/ Simple Intelligent Parking Assist System)*1

  • Pre-collision system

Click here

Initialize back door lock Power door lock control system

Click here

Drive the vehicle until stop and start control is permitted (approximately 5 to 60 minutes)*2 Stop and start system

Click here

Power steering ECU assembly

  • Torque sensor zero point calibration

  • Assist map writing

  • DTCs are stored

  • EPS warning light illuminates

Click here


PROCEDURE


  1. REMOVE STEERING COLUMN ASSEMBLY

    Click here

  2. REMOVE POWER STEERING ECU ASSEMBLY

    Note


    • Do not drop the power steering ECU assembly, strike it with tools or subject it to impacts.

    • If the power steering ECU assembly is subjected to an impact, replace it with a new one.

    • Do not pull the wire harness of the electric power steering column sub-assembly.

    • Do not allow any moisture to come into contact with the power steering ECU assembly.

    • Do not loosen any bolts not mentioned in the procedure.

    • Do not allow any foreign matter to contaminate the power steering ECU assembly.


    1. A001WYT

      Disconnect the connector.

    2. for Type A:


      1. A001XCW

        Using a T40 "TORX" socket wrench, remove the 2 screws and power steering ECU assembly from the electric power steering column sub-assembly.

    3. for Type B:


      1. A001UUZ

        Remove the 2 bolts and power steering ECU assembly from the electric power steering column sub-assembly.

  3. REMOVE ELECTRIC POWER STEERING MOTOR SHAFT DAMPER


    1. A001Y3U

      Remove the electric power steering motor shaft damper from the electric power steering column sub-assembly.