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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM ACTIVE TEST BY TECHSTREAM (SECURITY INDICATOR) 
    1. Operate Techstream according to the steps on the display and select "Active Test".
      • Techstream

        Main Body 

        TECHSTREAM MAIN BODY REFERENCE CHART

        Tester Display Test Part Control Range Diagnostic Note
        Security Indicator Security indicator ON or OFF -

        OK: Security indicator illuminates. 

    NG: Go to step 2 

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

  2. CHECK HARNESS AND CONNECTOR (ACCESSORY METER - MAIN BODY ECU) 
    1. Disconnect the J1 main body ECU connector.
    2. Disconnect the K20 accessory meter connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      ACCESSORY METER - MAIN BODY ECU

      Tester Connection Condition Specified Condition
      K20-16 (MHTR) - J1-4 (IND) Always Below 1 Ω
      K20-16 (MHTR) - Body ground Always 10 kΩ or higher
      Fig 1: Checking Harness And Connector (Accessory Meter - Main Body ECU)
      G05160622Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE ACCESSORY METER  (See REMOVAL )

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