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.

      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

      HINT.

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

B: Go to step  4

A: Go to next step 

1. Enter the diagnostic mode
   Fig 1: Service Check Mode And Detailed Information Mode Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Press the preset switch "3" to change to "Detailed Information Mode".
3. Identify the component which has stored this code.

   Component Table 

   COMPONENT TABLE
   
   

   Component	Physical Address
   Gateway ECU	1C6
   Stereo component amplifier	440
   Integration control & panel assembly	1D8
   Radio receiver	190

   HINT.

   • "440 (stereo component amplifier)" is the component which has stored this code in the example shown in the illustration
   • For details of the DTC display, refer to DTC CHECK / CLEAR  .

1. Select the component which has stored this code.

   Component Table 

   COMPONENT TABLE
   
   

   Component	Proceed to
   Gateway ECU	Gateway ECU communication error (See GATEWAY ECU COMMUNICATION ERROR  )
   Stereo component amplifier	Stereo component amplifier communication error (See STEREO COMPONENT AMPLIFIER COMMUNICATION ERROR  )
   Integration control & panel assembly	Integration control & panel assembly communication error (See INTEGRATION CONTROL AND PANEL ASSEMBLY COMMUNICATION ERROR  )
   Radio receiver	Radio receiver communication error (See RADIO RECEIVER 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 6 

OK: END 

Component Table 

NEXT: END