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Home >> Toyota >> 2009 >> Land Cruiser >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation/Multi Info Display >> Navigation System >> Display Signal Circuit between Multi-display and Radio Receiver >> Inspection Procedure

Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - RADIO RECEIVER) 
    1. Disconnect the F29 display connector.
    2. Disconnect the F25 receiver connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

    RESISTANCE REFERENCE

    Tester Connection Condition Specified Condition
    F29-4 (W-) - F25-2 (GND) Always Below 1 Ω
    F29-1 (W+) - F25-1 (NTSC) Always Below 1 Ω
    F29-4 (W-) - Body ground Always 10 kΩ or higher
    F29-1 (W+) - Body ground Always 10 kΩ or higher
    F25-3 (SLD) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 1: Identifying F29 Display Connector & F25 Receiver Connector
    G05630777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  2. CHECK RADIO RECEIVER ASSEMBLY (NTSC SIGNAL) 
    1. Reconnect the F25 receiver connector.
    2. Check the waveform of the radio receiver using an oscilloscope.

      Measurement Condition 

    CONDITION OF MEASUREMENT

    Item Content
    Terminal No. (Symbol) F25-1 (NTSC) - Body ground
    Tool setting 0.2V/DIV., 10 sec./DIV.
    Condition DVD played on radio receiver

    OK: Waveform is as shown in the illustration. 

    NG: REPLACE RADIO RECEIVER ASSEMBLY  (See REMOVAL )

    Fig 2: Identifying F25 Receiver Connector
    G05630778Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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