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Home >> Lexus >> 2011 >> ES 350 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Engine Immobilizer System (Diagnostic Codes & Circuit Tests) >> Engine Immobilizer System >> Circuit Tests >> ID Code Box Power Source Circuit >> Procedure

ID Code Box Power Source Circuit: Procedure

  1. INSPECT FUSE (EFI NO. 1) 
    1. Remove the EFI No. 1 fuse from the No. 1 engine room R/B.
    2. Measure the resistance of the fuse.

      Standard resistance

      Below 1 Ω

    NG → REPLACE FUSE 

    OK: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (ID CODE BOX - BATTERY) 
    1. Disconnect the E32 ID code box connector.
      Fig 1: Identifying E32 ID Code Box Connector +B Terminals
      GTY119977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Specified Condition
      E32-1 (+B) - Body ground 10 to 14 V

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (ID CODE BOX - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying E32 ID Code Box Connector GND Terminals
      GTY126020Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Specified Condition
      E32-8 (GND) - Body ground Below 1 Ω

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

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