2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Transmission Wire: Inspection

  1. INSPECT TRANSMISSION WIRE (ATF TEMPERATURE SENSOR) 
    Fig 1: Identifying ATF Temperature Sensor Connector Terminals
    G04948442Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Measure the resistance of the transmission wire.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection ATF Temperature Specified Condition
      8 (OIL) - 9 (E2) 10°C (50°F) 5.8 to 7.1 kΩ
      8 (OIL) - 9 (E2) 25°C (77°F) 2.5 to 4.5 kΩ
      8 (OIL) - 9 (E2) 110°C (230°F) 231 to 263 Ω

      HINT:

      If the resistance is not within the specified range of any of the ATF temperatures shown in the table above, the driveability of the vehicle may decrease.

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.