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Home >> Lexus >> 2009 >> GS 450h >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation (Diagnostic Codes - Circuit Tests) >> Navigation System >> Display Signal Circuit Between Navigation ECU and Multi-display >> Procedure

Display Signal Circuit Between Navigation ECU and Multi-display: Procedure

  1. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU - MULTI-DISPLAY) 
    1. Disconnect the navigation ECU connector and multi-display connector.
      Fig 1: Identifying H2 Multi-Display Connector
      GTY143136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.
      Fig 2: Identifying L113 Navigation ECU Connector
      GTY153737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance

      Tester Connection Condition Specified Condition
      L113-1 (GVI+) - h2-1 (GVI+) Always Below 1 Ω
      L113-2 (GVI-) - h2-2 (GVI-) Always Below 1 Ω
      L113-3 (GND) - h2-3 (GVG1) Always Below 1 Ω
      L113-1 (GVI+) - Body ground Always 10 kΩ or higher
      L113-2 (GVI-) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

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