POWER STEERING SYSTEM PRECAUTION


  1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

    Note

    When disconnecting the cable from the negative (-) battery terminal, initialize the following system(s) after the cable is reconnected:

    System See Procedure
    Parking Assist Monitor System

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    Power Door Lock Control System
    Air Conditioning System (for Automatic Air Conditioning System)
    Air Conditioning System (for Manual Air Conditioning System)
    Power Back Door System

  2. IGNITION SWITCH EXPRESSIONS

    The type of ignition switch used on this model differs depending on the specifications of the vehicle.

    The expressions listed in the table below are used in this section.

    Expression Ignition Switch (Position) Engine Switch (Condition)
    Ignition Switch off LOCK Off (Lock)
    Ignition Switch ACC ACC On (ACC)
    Ignition Switch ON ON On (IG)
    Engine Start START On (Start)

  3. HANDLING PRECAUTIONS FOR SRS AIRBAG SYSTEM


    1. This vehicle is equipped with a Supplemental Restraint System (SRS). Failure to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during servicing. This may cause a serious accident.

      Before servicing (including inspection, replacement, removal and installation of parts), be sure to read the precautionary notices for Supplemental Restraint System.

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  4. PRECAUTIONS FOR REMOVAL, INSTALLATION AND REPLACEMENT OF ELECTRONIC MOTOR POWER STEERING COMPONENTS


    1. Be sure to align the front wheels straight ahead when removing and installing the steering gear assembly.

    2. When disconnecting the intermediate shaft assembly, be sure to put matchmarks on the parts before starting the procedure.

  5. HANDLING PRECAUTION


    1. When handling the electronic parts:


      1. Avoid any impact to electronic parts such as ECUs and relays. Replace them with new ones if dropped or subjected to a severe blow.

      2. Do not expose any electronic parts to high temperatures or humidity.

      3. In order to prevent deformation or malfunctions due to static electricity, do not touch the connector terminals.

    2. When handling the power steering ECU assembly:


      1. When the power steering ECU assembly has been replaced, perform assist map writing.

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    3. When disconnecting and reconnecting the connectors:


      1. Before disconnecting connectors related to the power steering system, turn the ignition switch to ON, center the steering wheel, turn the ignition switch off, and then disconnect the connectors.

      2. Before reconnecting connectors related to the power steering system, ensure that the ignition switch is off. Then center the steering wheel and turn the ignition switch to ON.

        Note

        Do not turn the ignition switch to ON when the steering wheel is not centered.

  6. PRECAUTIONS FOR CAN COMMUNICATION


    1. CAN communication lines are used to receive information from the skid control ECU (brake actuator assembly) and the ECM, and to transmit warnings to the combination meter assembly.

      When problems are detected in the CAN communication lines, CAN communication DTCs are stored.

    2. Perform troubleshooting for communication problems when CAN communication DTCs are output. Be sure to start troubleshooting the power steering system after confirming that the CAN communication system is normal.

    3. Since the CAN communication lines each have their own length and route, they cannot be repaired temporarily with a bypass wire, etc.