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Inspection Procedure

NOTE:
  • Before starting troubleshooting, be sure to clear DTCs to erase codes stored due to the reasons described in the HINT above. Then, check for DTCs and troubleshoot according to the output DTCs.
  • The multi-display is the master unit.
  • Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.
NOTE: Be sure to read DESCRIPTION before performing the following procedures.
  1. CHECK FOR DTC OF OTHER COMPONENTS 
    1. Check if the component shown by the sub-code is displayed in the check result of the other components.
      1. Check if "01-DC" is output for the other components.
      2. If "01-DC" is output for any other components, check if the same physical address is displayed.

        HINT:

        For the list of the components shown by sub-codes, refer to the table in step 2.

    Result 

    RESULT REFERENCE

    Result Proceed to
    "01-DC" is output and the same physical address is displayed A
    "01-DC" is not output or the same physical address is not displayed B

    B: Go to step   4 

    A: Go to next step. 

  2. IDENTIFY THE 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.
    Fig 1: Multi-Display Screen - System Check Mode And LAN Monitor
    G04092919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Component Table 

    COMPONENT CHART

    Display Component
    AUDIO H/U (190) Radio receiver
    DSP-AMP (440) Stereo component amplifier
    G/W (1C6) Gateway ECU
    NAVI (178) Navigation ECU
    CAMERA (280) Television camera ECU
    RSE (1F6) Multi-display controller
    EMV (110) Multi-display

    HINT:

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

  3. CHECK COMPONENT WHICH HAS STORED THIS CODE 
    1. Select the component which has stored this code.

    Component Table 

    COMPONENT CHART

    Component Proceed to
    Network gateway ECU (G/W) (See GATEWAY ECU COMMUNICATION ERROR  )
    Radio receiver (AUDIO H/U) (See RADIO RECEIVER COMMUNICATION ERROR  )
    Stereo component amplifier (DSP-AMP) (See STEREO COMPONENT AMPLIFIER COMMUNICATION ERROR  )
    Navigation ECU (NAVI) (See NAVIGATION ECU COMMUNICATION ERROR  )
    Multi-display controller (RSE) (See MULTI-DISPLAY CONTROLLER COMMUNICATION ERROR  )
    Television camera ECU (CAMERA) (See TELEVISION CAMERA ECU COMMUNICATION ERROR  )
    Multi-display (EMV) (SeeMULTI-DISPLAY COMMUNICATION ERROR  )

    NEXT: END 

  4. CLEAR DTC 
    1. Clear the DTCs (See DTC CHECK/CLEAR ).

      HINT:

      If "01-DC" is output for only one component, this may not indicate a malfunction.

  5. RECHECK DTC 
    1. Recheck for DTCs and check if the same trouble occurs again.

    OK: Malfunction disappears. 

    NG: Go to step 3 

    OK: END 

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