2008 Lexus LX 570FACTORY OEM SERVICE PROCEDURE

Check Mode Procedure

  1. DESCRIPTION 
    1. Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are stored with 1 trip detection logic.
  2. CHECK MODE PROCEDURE 
    1. Make sure that the following conditions are met:
      1. Battery positive voltage 11 V or higher.
      2. Throttle valve fully closed.
      3. Shift lever in P or N.
      4. A/C turned off.
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / Engine and ECT / Utility / Check Mode.
    6. Check that the MIL flashes as shown in the illustration.
      Fig 1: MIL Blinking Pattern
      G05153239Courtesy of © 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:

  • • 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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