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Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
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 COMPONENT REFERENCE  table in step 2

        Result 

        RESULT CHART

        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

      Component Table 

      COMPONENT REFERENCE

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

      HINT.

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

      Fig 1: Diagnosis Display - Lan Monitor Screen
      G05753595Courtesy 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 REFERENCE

      Component Proceed to
      Gateway ECU (G/W) Gateway ECU communication error (See GATEWAY ECU COMMUNICATION ERROR  )
      Radio receiver (AUDIO H/U) Radio receiver communication error (See RADIO RECEIVER COMMUNICATION ERROR  )
      Stereo component amplifier (DSP-AMP) Stereo component amplifier communication error (See STEREO COMPONENT AMPLIFIER COMMUNICATION ERROR  )
      Navigation ECU (NAVI) Navigation ECU communication error (See NAVIGATION ECU COMMUNICATION ERROR  )
      Multi-display (EMV) Multi-display communication error (See 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 6 

    OK: END 

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

      Component Table 

      COMPONENT REFERENCE

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

    NEXT: END 

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