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Installation [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY 
    NOTE:
    • Do not replace the spiral cable with sensor sub-assembly with the auxiliary battery connected and the power switch on (IG).
    • Do not rotate the spiral cable with sensor sub-assembly without the steering wheel with the auxiliary battery connected and the power switch on (IG).
    • Ensure that the steering wheel is installed and aligned straight when inspecting the steering sensor.
    1. Check that the power switch is off.
    2. Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
      WARNING:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    3. Check that the front wheels are facing straight ahead.
    4. Set the turn signal switch to the neutral position.
      NOTE:

      If it is not in the neutral position, the turn signal switch pin may snap.

    5. Engage the 3 claws to install the spiral cable with sensor sub-assembly.
    6. Connect each connector.
  2. INSTALL UPPER STEERING COLUMN COVER  . Refer to INSTALLATION [08/2013 - ] - Step 7
  3. INSTALL LOWER STEERING COLUMN COVER (for Manual Tilt and Manual Telescopic Steering Column)  . Refer to INSTALLATION [08/2013 - ] - Step 8
  4. INSTALL LOWER STEERING COLUMN COVER (for Power Tilt and Power Telescopic Steering Column)  . Refer to INSTALLATION [08/2013 - ] - Step 9
  5. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 
  6. INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY 
    NOTE:

    Do not adjust the spiral cable with sensor sub-assembly with the auxiliary battery connected and the power switch on (IG).

    1. Check that the power switch is off.
    2. Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
      WARNING:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

    3. Check if the spiral cable with sensor sub-assembly is centered.
      Fig 1: Identifying Spiral Cable With Sensor Sub-Assembly
      GTY402670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *A w/o Steering Heater *B w/ Steering Heater
      *1 Colored Part *2 Flat Cable
      *a Alignment Mark - -

      HINT: 

      When the spiral cable with sensor sub-assembly is centered, the alignment marks are aligned and the colored part or flat cable shown in the illustration is visible.

    4. If the spiral cable with sensor sub-assembly is not centered, center it.
      NOTE:
      • When rotating the spiral cable with sensor sub-assembly, make sure to push on the interlock indicated in the illustration to release the interlock mechanism.
      • Do not turn the spiral cable with sensor sub-assembly using the airbag wire harness.
      1. While pushing on the interlock indicated in the illustration, rotate the spiral cable with sensor sub-assembly counterclockwise slowly by hand until it stops.
        Fig 2: Identifying Spiral Cable With Sensor Sub-Assembly
        GTY410694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 Interlock
      2. While pushing on the interlock indicated in the illustration, rotate the spiral cable with sensor sub-assembly clockwise approximately 2.5 turns to the position where the colored part or flat cable is visible.
        Fig 3: Identifying Spiral Cable With Sensor Sub-Assembly
        GTY418217Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        TEXT IN ILLUSTRATION

        *1 Interlock

        HINT: 

        The spiral cable with sensor sub-assembly will rotate approximately 2.5 turns to both the left and right from the center.

  7. INSTALL STEERING WHEEL ASSEMBLY  . Refer to INSTALLATION [08/2013 - ] - Step 9
  8. INSTALL STEERING WHEEL CENTER POINT 
  9. INSTALL HORN BUTTON ASSEMBLY  See step  1
  10. INSTALL LOWER NO. 3 STEERING WHEEL COVER  See step  2
  11. INSTALL LOWER NO. 2 STEERING WHEEL COVER  See step  3
  12. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL (for Manual Tilt and Manual Telescopic Steering Column) 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected. Refer to INITIALIZATION [08/2013 - ] .

  13. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL (for Power Tilt and Power Telescopic Steering Column)  . Refer to INSTALLATION [08/2013 - ] - Step 17
  14. INSTALL LUGGAGE TRIM SERVICE HOLE COVER  . Refer to INSTALLATION [08/2013 - ] - Step 3
  15. INSPECT HORN BUTTON ASSEMBLY  See step  6
  16. PERFORM DIAGNOSTIC SYSTEM CHECK 

    Refer to DTC CHECK / CLEAR [08/2013 - ]

  17. INSPECT SRS WARNING LIGHT 

    Refer to DIAGNOSIS SYSTEM [08/2013 - ]

  18. ADJUST PARKING ASSIST MONITOR SYSTEM (w/ Parking Assist Monitor System) 

    Refer to CALIBRATION [08/2013 - ]

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