Inspection Procedure

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  2

   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 CHART
      
      

      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: Display - LAN Monitor Screen

      Courtesy 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 CHART
      
      

      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  )
      Multi-display (EMV)	Multi-display communication error (see MULTI-DISPLAY COMMUNICATION ERROR  )

NEXT: END 

1. Clear the DTCs (see DTC CHECK / CLEAR  ).

   HINT:

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

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

   OK: Malfunction disappears. 

NG:  Go to step  c

OK: END