LS400 1990-1997

Ignition Switch

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Removal & Installation



  1. With the ignition switch OFF , disconnect the negative battery terminal first. Allow 90 seconds to elapse before performing any other work.
    CAUTION
    The Supplemental Inflatable Restraint (SIR) system must be disarmed before removing the ignition switch. Failure to do so may cause accidental deployment of the air bag, resulting in unnecessary SIR system repairs and/or personal injury.

  2.  
  3. Remove the upper and lower steering column covers.
  4.  
  5. Disconnect the wiring connector to the ignition electrical switch.
  6.  
  7. Remove the screws holding the switch to the ignition lock and remove the switch assembly.

    Click image to see an enlarged view

    Fig. Ignition switch mounting screws - SC300, SC400 and LS400

  8.  

To install:

  1. Install the ignition switch to the steering column and install the three screws.
  2.  
  3. Connect the electrical connector to the ignition switch.
  4.  
  5. Install the upper and lower steering column covers.
  6.  
  7. Connect the negative battery cable to the battery.
  8.  

 
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