FixVault
Home › Toyota › 2009 › Land Cruiser › Repair and Diagnosis › Accessories & Equipment › Infotainment › Navigation/Multi Info Display › Navigation System › DTC 01-DF Master Error › Inspection Procedure

Inspection Procedure

NOTE: Be sure to read the Description before performing the following procedures.
  1. CHECK MULTI-DISPLAY POWER SOURCE CIRCUIT 
    1. Refer to the MULTI-DISPLAY POWER SOURCE CIRCUIT  ).

      If the power source circuit is operating normally, proceed to the next step.

  2. INSPECT RADIO RECEIVER ASSEMBLY 
    Fig 1: Identifying F1 & F23 Receiver Connectors Terminals
    G05630678Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F1 and F23 receiver connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

    RESISTANCE REFERENCE

    Tester Connection Condition Specified Condition
    F1-5 (ATX+) - F1-15 (ATX-) Always 60 to 80 Ω
    F23-9 (TX+) - F23-10 (TX-) Always 60 to 80 Ω

    NG: REPLACE RADIO RECEIVER ASSEMBLY  (See REMOVAL )

    OK: Go to Next Step 

  3. IDENTIFY COMPONENT WHICH HAS STORED THIS CODE 
    1. Enter the diagnostic mode.
    2. Press the "LAN Mon" switch to change to "LAN Monitor" mode.
    3. Identify the component which has stored this code.

      Component Table 

    COMPONENT SPECIFICATION

    Display Component
    AUDIO Radio receiver
    DSP-AMP Stereo component amplifier
    EMV Multi-display
    NAVI Navigation ECU
    RSE Television display

    HINT:

    "NAVI" is the component which has stored this code in the example shown in the illustration.

    Fig 2: Display - LAN Mon Switch To LAN Monitor Mode
    G05630682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - COMPONENT WHICH HAS STORED THIS CODE) 

    HINT:

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

    1. Referring to the AVC-LAN wiring diagram, check the AVC-LAN circuit between the multi-display and the component which has stored this code.
      1. Disconnect all connectors between the multi-display and the component which has stored this code.
      2. Check for an open or short in the AVC-LAN circuit between the multi-display and the component which has stored this code.

    OK: There is no open or short circuit. 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  5. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY - RADIO RECEIVER) 

    HINT:

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

    1. Referring to the AVC-LAN wiring diagram, check the AVC-LAN circuit between the multi-display and the radio receiver.
      1. Disconnect all connectors between the multi-display and the radio receiver.
      2. Check for an open or short in the AVC-LAN circuit between the multi-display and the radio receiver.

        OK: There is no open or short circuit. 

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  6. REPLACE MULTI-DISPLAY 
    1. Replace the multi-display with a normal one (See MULTI-DISPLAY (W/NAVIGATION SYSTEM)  ) and check if the same problem occurs again.

      OK: Same problem does not occur. 

      NG: REPLACE COMPONENT WHICH HAS STORED THIS CODE 

      OK: END 

About FixVault