2010 Lexus LS 460L AWDFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

  1. DATA LISTΒ 

    HINT:Β 

    Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    NOTE:

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine / Data List / All Data /
    7. According to the display on the Techstream.
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Shift SW Status (R Range) PNP switch status/
      ON or OFF
      • Shift lever in R: ON
      • Shift lever not in R: OFF
      When shift lever position displayed on the Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect
      Shift SW Status (P Range) PNP switch status/
      ON or OFF
      • Shift lever in P: ON
      • Shift lever not in P: OFF
      When shift lever position displayed on the Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect
      Shift SW Status (N Range) PNP switch status/
      ON or OFF
      • Shift lever in N: ON
      • Shift lever not in N: OFF
      When shift lever position displayed on the Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect
      Shift SW Status (D Range) PNP switch status/
      ON or OFF
      • Shift lever in D, M or S: ON
      • Shift lever not in D, M or S: OFF
      When shift lever position displayed on the Techstream differs from actual position, adjustment of PNP switch or shift cable may be incorrect
      Sports Mode Selection SW Sport Mode Select Switch Status/
      ON or OFF
      • Shift lever in M (or S), "+" or "-": ON
      • Shift lever not in M (or S), "+" or "-": OFF
      -
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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