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Inspection Procedure

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER 
    1. Connect the intelligent tester (with CAN VIM) to the DLC3.
    2. Turn the ignition switch ON.
    3. Perform the ACTIVE TEST according to the display on the tester.

      Transponder key ECU: 

      ACTIVE TEST BY INTELLIGENT TESTER

      Item Tester Details Diagnostic Note
      SECURITY INDIC Turn security indicator ON/OFF -

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

    NG: GO TO NEXT STEP 

  2. CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT) 
    1. Disconnect the T10 ECU and S4 indicator connectors.
    2. Measure the resistance according to the value(s) in TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT  .

      Standard resistance 

      TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT

      Tester Connection Condition Specified Condition
      T10-8 (IND) - S4-3 (1) or S4-2 (2) Always Below 1 Ω
      T10-8 (IND) - Body ground Always 10 kΩ or higher
      (1) without TVIP System
      (2) with TVIP System
      Fig 1: Checking Harness And Connector (Transponder Key ECU - Security Indicator Light
      G04466314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  3. CHECK HARNESS AND CONNECTOR (SECURITY INDICATOR LIGHT - BODY GROUND) 
    1. Measure the resistance according to the value(s) in SECURITY INDICATOR LIGHT - BODY GROUND  .

      Standard resistance 

      SECURITY INDICATOR LIGHT - BODY GROUND

      Tester Connection Condition Specified Condition
      S4-1 - Body ground Always Below 1 Ω
      Fig 2: Checking Harness And Connector (Security Indicator Light - Body Ground)
      G04466315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  4. INSPECT TRANSPONDER KEY ECU ASSEMBLY 
    1. Reconnect the T10 ECU and S4 indicator connectors.
    2. Measure the voltage according to the value(s) in TRANSPONDER KEY ECU ASSEMBLY  .

      Standard voltage 

      TRANSPONDER KEY ECU ASSEMBLY

      Tester Connection Condition Specified Condition
      T10-8 (IND) - Body ground Security indicator light comes on 10 to 14 V
      T10-8 (IND) - Body ground Security indicator light goes off Below 1 V
      Fig 3: Inspecting Transponder Key ECU Assembly
      G04466316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE TRANSPONDER KEY ECU ASSEMBLY 

    OK: REPLACE SECURITY INDICATOR LIGHT ASSEMBLY 

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