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Inspection Procedure

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 the next step.

        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 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 TABLE

      Display Component
      AUDIO H/U Radio receiver
      DSP-AMP Stereo component amplifier
      G/W Gateway ECU
      EMV Multi-display

      HINT:

      "G/W" is the component which has stored this code in the example shown in the illustration.

    Fig 1: Diagnostic Tool Display - LAN Mon
    G05299431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. check component which has stored this code 
    1. Select the component which has stored this code.

      Component table 

      COMPONENT TABLE

      Component Proceed to
      Gateway ECU (G/W) GATEWAY ECU COMMUNICATION ERROR 
      Radio receiver (AUDIO H/U) RADIO RECEIVER COMMUNICATION ERROR 
      Stereo component amplifier (DSP-AMP) STEREO COMPONENT AMPLIFIER COMMUNICATION ERROR 
      Multi-display (EMV) MULTI-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