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Home >> Lexus >> 2008 >> LS 600hL >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Engine Immobilizer >> Engine Immobilizer System >> ID Code Box Power Source Circuit >> Inspection Procedure

Inspection Procedure

  1. INSPECT FUSE (SECURITY) 
    1. Remove the SECURITY fuse from the main body ECU (driver side junction block)
    2. Measure the resistance according to the value(s) in the table below

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester Connection Condition Specified Condition
    SECURITY fuse Always Below 1 Ω

    NG: REPLACE FUSE 

    OK: Go to Next Step 

  2. CHECK HARNESS AND CONNECTOR (ID CODE BOX - BATTERY AND BODY GROUND) 
    1. Disconnect the L32 box connector.
      2. Fig 1: Identifying L32 Box Connector Terminals
      G04944592Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance and voltage according to the value(s) in the table below

    Standard resistance 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester Connection Condition Specified Condition
    L32-8 (GND) - Body ground Always Below 1 Ω

    Standard voltage 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester Connection Condition Specified Condition
    L32-1 (+B) - Body ground Always 11 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE  (See ON-VEHICLE INSPECTION )

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