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Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR (RADIO AND NAVIGATION ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY) 
    1. Disconnect the radio and navigation assy connector R14 and multi-display controller sub-assy connector R26.
    2. Measure the resistance according to the value(s) in RADIO AND NAVIGATION ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY RESISTANCE .

      Standard: 

    RADIO AND NAVIGATION ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY RESISTANCE

    Tester connection Specified condition
    CDR- - R- Below 1 Ω
    CDR+ - R+ Below 1 Ω
    CDL- - L- Below 1 Ω
    CDL+ - L+ Below 1 Ω
    CSLD - SG1 Below 1 Ω
    CDR- - Body ground 10 kΩ or higher
    CDR+ - Body ground 10 kΩ or higher
    CDL- - Body ground 10 kΩ or higher
    CDL+ - Body ground 10 kΩ or higher
    CSLD - Body ground 10 kΩ or higher
    Fig 1: Disconnecting Radio And Navigation Assy Connector R14
    G02630361Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Disconnecting Multi-Display Controller Sub-Assy Connector R26
    G02630362Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE