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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Smart Access System With Push-Button Start >> Key Luggage Compartment Lock-in Prevention Function does not Operate >> Inspection Procedure
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Inspection Procedure

  1. CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START 
    1. Check that the entry luggage compartment open function operates.

      Result 

      SMART ACCESS SYSTEM WITH PUSH-BUTTON START

      Result Proceed to
      Entry luggage compartment open function operates A
      Entry luggage compartment open function does not operate B

    B: GO TO DTC OF OTHER COMPONENTS (See  LUGGAGE COMPARTMENT DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE WHEN KEY IS OUTSIDE LUGGAGE COMPARTMENT   ) 

    A: GO TO NEXT STEP 

  2. CHECK WAVE ENVIRONMENT 
    1. Bring the electrical key transmitter near the indoor electrical key oscillator (for luggage room), and check that the entry luggage compartment lock-in prevention function operates.
      NOTE: If the key is brought within 0.2 m (0.6 ft.)of the indoor electrical key oscillator, communication is not possible.

      HINT:

      • When the electrical key transmitter is brought near the indoor electrical key oscillator (for luggage room), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
      • If the inspection result is that the operation check is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

      Result 

      WAVE ENVIRONMENT

      Result Proceed to
      Operation check fails A
      Operation check is normal B

    B: AFFECTED BY WAVE INTERFERENCE 

    A: GO TO NEXT STEP 

  3. KEY DIAGNOSTIC MODE 
    Fig 1: Identifying Inspection Point
    G04951712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Diagnostic mode inspection (luggage room inside oscillator)
      1. Connect the intelligent tester or Techstream to the DLC3.
      2. Turn the engine switch on (IG).
      3. Turn the tester on.
      4. Enter the following menus:
        1. Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / SMART ACCESS / ID UTILITY / SMART DAIGMODE / LUGG + OVERHEAD /
        2. Techstream - Select: Body Electrical / Smart Access / Smart Communication Check / Overhead + Luggage /
      5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds.

        HINT:

        If the buzzer sounds, it can be determined that the luggage compartment interior transmitter is operating normally.

        OK: Wireless door lock buzzer sounds 

    NG: Go to step 4 

    OK: REPLACE CERTIFICATION ECU 

  4. CHECK HARNESS AND CONNECTOR (INDOOR ELECTRICAL KEY OSCILLATOR CERTIFICATION ECU) 
    Fig 2: Identifying S44 Indoor Electrical Key Oscillator And L15 Certification ECU Connector Terminal
    G04951713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S44 oscillator connector.
    2. Disconnect the L15 ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      INDOOR ELECTRICAL KEY OSCILLATOR CERTIFICATION ECU

      Tester Connection Condition Specified Condition
      S44-1 (CLG6)-L15-15 (CLG7) Always Below 1 Ω
      S44-3 (CLGB)-L15-16 (CG7B) Always Below 1 Ω
      S44-1 (CLG6) - Body ground Always 10 kΩ or higher
      S44-3 (CLGB) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  5. CHECK INDOOR ELECTRICAL KEY OSCILLATOR (OPERATION) 
    1. Replace the indoor electrical key oscillator with a new one or normally functioning one (see REMOVAL  ).
    2. Check that the entry function operates normally.

      OK: Operates normally 

    NG: REPLACE CERTIFICATION ECU 

    OK: END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)