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Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis >> Steering >> Manual Steering >> Power Steering >> Power Steering Ecu >> Installation
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Power Steering Ecu: Installation

  1. INSTALL POWER STEERING ECU ASSEMBLY 
    1. Connect connector (c) to the power steering ECU assembly.
    2. Connect 2 power steering ECU assembly connectors (a) and (b) and securely lock the connectors.
      Fig 1: Connecting Connector To Power Steering ECU Assembly
      G04048233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the power steering ECU assembly to the battery tray with the 3 bolts.

      Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf) 

    4. Install the No. 1 battery tray support.
    Fig 2: Installing Power Steering ECU Assembly To Battery Tray With Bolts
    G04048234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL BATTERY 
    1. Install the battery.
    2. Install the battery insulator.
    3. Install the battery clamp with the 2 nuts.

      Torque: 2.9 N*m (30 kgf*cm, 26 in.*lbf) 

    4. Connect the positive (+) battery cable to the battery.

      Torque: 5.6 N*m (57 kgf*cm, 50 in.*lbf) 

    5. Connect the negative (-) battery cable to the battery.

      Torque: 5.6 N*m (57 kgf*cm, 50 in.*lbf) 

  3. PERFORM INITIALIZATION 

    HINT:

    Some systems need initialization when disconnecting the cable from the negative battery terminal (See INITIALIZATION ).

  4. INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT 

    HINT:

    See CALIBRATION