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Inspection Procedure

  1. INSPECT RADIO RECEIVER 
    Fig 1: Inspecting Radio Receiver
    G05237085Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the radio receiver connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      TX+ - TX- Always 60 to 80 Ω

    NG: REPLACE RADIO RECEIVER 

    OK : Go to next step. 

  2. CHECK HARNESS AND CONNECTOR 

    HINT:

    For details of the connectors, refer to the "TERMINALS OF ECU " .

    1. Referring to the AVC-LAN wiring diagram below, check all AVC-LAN circuits.
      1. Disconnect all connectors in all AVC-LAN circuits.
      2. Check for an open or short in all AVC-LAN circuits.

        OK: There is no open or short circuit. 

        Fig 2: AVC-LAN - Wiring Diagram
        G05237086Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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