2008 Lexus IS 350FACTORY OEM SERVICE PROCEDURE

Speed Sensor: Inspection

  1. INSPECT TRANSMISSION REVOLUTION SENSOR (NT)Β 
    1. Measure the resistance according to the value(s) in the table below.
      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition (20Β°C (68Β°F))
      1 - 2 560 to 680 Ξ©

      If the resistance value is not as specified, replace the speed sensor.

      Fig 1: Locating Transmission Revolution Sensor Connector
      G05824117Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT TRANSMISSION REVOLUTION SENSOR (SP2)Β 
    1. Measure the resistance according to the value(s) in the table below.
      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Specified Condition (20Β°C (68Β°F))
      1 - 2 560 to 680 Ξ©

      If the resistance value is not as specified, replace the speed sensor.

      Fig 2: Locating Transmission Revolution Sensor Connector
      G05824118Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
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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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