2008 Lexus GX 470FACTORY OEM SERVICE PROCEDURE

Speed Sensor: Inspection

  1. INSPECT SPEED SENSOR (NT SENSOR) 
    1. Disconnect the speed sensor connector from the transmission.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition 20°C (68°F)
      1 - 2 560 to 680 Ω
      Fig 1: Identifying Speed Sensor Connector Terminal (NT Sensor)
      G04963354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT SPEED SENSOR (SP2 SENSOR) 
    1. Disconnect the speed sensor connector from the transmission.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE REFERENCE

      Tester Connection Specified Condition 20°C (68°F)
      1 - 2 560 to 680 Ω
      Fig 2: Identifying Speed Sensor (SP2 Sensor) Connector Terminal
      G04963354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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:

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

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