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Home >> Lexus >> 2005 >> LS 430 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Smart Key System - Diagnostics >> Luggage Oscillator Circuit >> Inspection Procedure

Inspection Procedure

  1. CHECK WIRE HARNESS (LUGGAGE OSCILLATOR (INNER, OUTER) - BATTERY AND BODY GROUND) 
    1. Disconnect the L16 luggage oscillator inner connector.
    2. Disconnect the L17 luggage oscillator outer connector.
    3. Measure the voltage and resistance of the wire harness side connectors and body ground.

    Standard: 

    TESTER CONNECTION AND SPECIFIED CONDITION

    Tester Connection Specified Condition
    L16-5 (GND) - Body ground Below 1 Ω
    L16-1 (+B) - Body ground 10 to 14V
    TESTER CONNECTION AND SPECIFIED CONDITION

    Tester Connection Specified Condition
    L17-3 (GND) - Body ground Below 1 Ω
    L17-1 (B) - Body ground 10 to 14V
    Fig 1: Identifying L16 Luggage Oscillator Inner Assy Connector
    G03002945Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: GO TO NEXT STEP 

  2. PERFORM ACTIVE TEST USING HAND-HELD TESTER 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch ON and press the hand-held tester main switch ON.
    3. Select the item below in the ACTIVE TEST and then check that the oscillator operates.
    THEFT WARNING ECU REFERENCE

    Item Test Details Diagnostic Note
    IN RUG TRANSMIT In Luggage Transmitter ON/OFF -
    LUGG TRANSMIT Luggage Transmitter ON/OFF -

    OK: 

    When the smart key is brought close to the door the oscillator is turned ON and the indicator on the smart key illuminates. 

    NG: Go to step 3 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON  PROBLEM SYMPTOMS TABLE  

  3. CHECK WIRE HARNESS (THEFT WARNING ECU ASSY - LUGGAGE OSCILLATOR (INNER, OUTER)) 
    1. Disconnect the T5 ECU connector.
    2. Disconnect the L16 luggage oscillator inner connector.
    3. Disconnect the L17 luggage oscillator outer connector.
    4. Measure the resistance of the wire harness side connectors.

    Standard: 

    TESTER CONNECTION AND SPECIFIED CONDITION

    Tester Connection Specified Condition
    T5-19 (CLG6) - L16-3 (CLG6) Below 1 Ω
    T5-19 (CLG6) or L16-3 (CLG6) - Body ground 10 kΩ or higher
    TESTER CONNECTION AND SPECIFIED CONDITION

    Tester Connection Specified Condition
    T5-39 (CLG8) - L17-2 (CLG5) Below 1 Ω
    T5-39 (CLG8) or L17-2 (CLG5) - Body ground 10 kΩ or higher
    Fig 2: Identifying T5 ECU Connector And L16 Luggage Oscillator Inner Connector
    G03002946Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON  PROBLEM SYMPTOMS TABLE