2007 Lexus LS 460FACTORY OEM SERVICE PROCEDURE

Data List / Active Test

  1. ACTIVE TEST 

    HINT:

    Using the intelligent tester or Techstream to Perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the intelligent tester or Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the tester on.
    6. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / ACTIVE TEST /
      2. Techstream - Select: Body Electrical / Air Conditioner / Active Test /
    7. According to the display on tester, perform the "Active Test".
      1. Intelligent tester

        AIR CONDITIONER 

        INTELLIGENT TESTER AIR CONDITIONER SPECIFICATION

        Tester Display Test Part Control Range Diagnostic Note
        DEFOGGER RLY-R Rear window defogger relay operation OFF / ON -
      2. Techstream

        Air Conditioner 

        TECHSTREAM AIR CONDITIONER SPECIFICATION

        Tester Display Test Part Control Range Diagnostic Note
        Defogger Relay (Rear) Rear window defogger relay operation OFF / ON -
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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