2004 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Ignition Switch/Steering Lock: Inspection

Fig 1: Inspecting Ignition Switch
G00926791Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
  1. INSPECT IGNITION OR STARTER SWITCH ASSYΒ 
    Fig 2: Terminals Continuity Reference Table
    G00926792Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002

    If the continuity is not as specified, replace the switch.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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