Lexus IS250 · Service Manual BRAKE

INSTALLATION

Removal / installation


1. INSTALL STEERING ANGLE SENSOR

  1. C104804E02
    Align the locating pins, engage the 6 claws and install the steering angle sensor to the spiral cable sub-assembly.


2. INSTALL SPIRAL CABLE SUB-ASSEMBLY WITH STEERING ANGLE SENSOR

  1. Check that the front wheels are facing straight ahead.

  1. Set the turn signal switch to the neutral position.

    NOTICE:
    If it is not in the neutral position, the pin of the turn signal switch may be snapped.

  1. C122403E01
    Engage the 3 claws and install the spiral cable with steering sensor.

    NOTICE:
    When replacing the spiral cable with a new one, remove the lock pin before installing the steering wheel assembly.

  1. Connect the connectors to the spiral cable with steering sensor.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.


3. INSTALL STEERING COLUMN COVER

  1. C115544
    Engage the claw to install the steering column cover upper.

  1. Engage the 4 clips to install the steering column cover upper onto the instrument panel cluster finish panel.

  1. C115538
    Engage the 2 claws to install the steering column cover lower.

    NOTICE:
    Do not damage the tilt and telescopic switch.

  1. Install the 3 screws.

    Torque:
    2.0 N*m{ 20 kgf*cm , 18 in.*lbf }


4. INSTALL STEERING WHEEL ASSEMBLY

  1. C115551E01
    Align the matchmarks on the steering wheel assembly and steering main shaft assembly.

  1. Install the steering wheel assembly set nut.

    Torque:
    50 N*m{ 510 kgf*cm , 37 ft.*lbf }


5. INSTALL STEERING PAD

  1. C122394
    Support the steering pad with one hand as shown in the illustration.

  1. Connect the 2 connectors to the steering pad.

    NOTICE:
    When handling the airbag connector, take care not to damage the airbag wire harness.

  1. Connect the horn connector.

  1. Confirm that the circumference groove of the "torx" screw fits in the screw case, and place the steering pad onto the steering wheel assembly.

  1. C122395
    Using a "torx" socket wrench (T30), tighten the 2 "torx" screws.

    Torque:
    8.8 N*m{ 90 kgf*cm , 78 in.*lbf }


6. INSTALL NO. 3 LOWER STEERING WHEEL COVER

  1. C122397
    Install the steering wheel No.3 cover lower.


7. INSTALL NO. 2 LOWER STEERING WHEEL COVER

  1. C122398
    Install the steering wheel No.2 cover lower.


8. INSPECT STEERING WHEEL CENTER POINT

  1. Inspect the steering wheel center point.


9. CONNECT BATTERY NEGATIVE TERMINAL

Torque:
5.4 N*m{ 55 kgf*cm , 48 in.*lbf }


10. INSPECT STEERING PAD

  1. C122399
    With the steering pad installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the steering pad with a new one:
    1. Cuts, minute cracks or marked discoloration on the steering pad top surface or in the grooved portion.

  1. Make sure that the horn sounds.

    HINT:
    If the horn does not sound, inspect the horn system (Click here).


11. INSPECT SRS WARNING LIGHT

HINT:
(Click here)


12. PERFORM INITIALIZATION

HINT:
(Click here)

Some systems need initialization after reconnecting the cable to the negative battery cable.
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