2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Key Switch Check

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK KEY SWITCH INPUT SIGNALΒ 

    With CONSULT-II

    Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-II. Refer to DATA MONITOR .

    • When key is inserted to ignition key cylinder:

      KEY ON SW: ONΒ 

    • When key is removed from ignition key cylinder:

      KEY ON SW: OFFΒ 

    Fig 1: Data Monitor Display
    G00867052Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II

    Check voltage between BCM connector M18 terminal 37 and ground.

    Fig 2: Terminal Voltage Condition Table
    G00867053Courtesy of NISSAN MOTOR CO., U.S.A.
Factory Service Tools

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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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