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Sound Signal Circuit between Multi-media Interface ECU and Stereo Jack Adapter: Procedure

  1. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the multi-media interface ECU connector.
      Fig 1: Checking E82 Connector Terminals
      GTY292961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the No. 1 stereo jack adapter assembly connector.
      Fig 2: Checking E80 Connector Terminals
      GTY290246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E80-3 (UDO+) - E82-2 (UDI+) Always Below 1 Ω
      E80-2 (UDO-) - E82-3 (UDI-) Always Below 1 Ω
      E80-5 (UJSS) - E82-5 (UESS) Always Below 1 Ω
      E80-3 (UDO+) - Body ground Always 10 kΩ or higher
      E80-2 (UDO-) - Body ground Always 10 kΩ or higher
      E80-5 (UJSS) - Body ground Always 10 kΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Multi-media Interface ECU)
      *b Front view of wire harness connector
      (to No. 1 Stereo Jack Adapter Assembly)

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   2 

  2. PROCEED TO NEXT SUSPECTED AREA SHOWN  PROBLEM SYMPTOMS TABLE