Lexus IS250 · Service Manual BODY ELECTRICAL

INSTALLATION

Removal / installation


1. INSTALL STEERING PAD SWITCH ASSEMBLY

  1. E121399
    Engage the 2 claws and install the steering pad switch.

  1. Install the screw.

  1. E121398
    Engage the 2 claws and install the steering pad switch.

  1. Install the screw.

  1. Connect the connector to the spiral cable.

  1. E121397E01
    Connect the cruise connector and install the connector clamp.


2. 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 }


3. INSTALL LOWER NO. 3 STEERING WHEEL COVER

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


4. INSTALL LOWER NO. 2 STEERING WHEEL COVER

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


5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

6. PERFORM INITIALIZATION

NOTICE:
Some systems need initialization when disconnecting the cable from the negative battery terminal (Click here).


7. 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).


8. INSPECT SRS WARNING LIGHT
(Click here)
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