DTC 01-DC: Transmission Error: 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	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 → See step   4 

A: Go to next step 

1. Enter the diagnostic mode.
   Fig 1: Identifying Diagnostic Flow Diagram

   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	Physical Address
   Stereo component amplifier	440
   "Bluetooth" handsfree module	19D
   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 toDTC CHECK / CLEAR .

NEXT: Go to next step 

1. Select the component which has stored this code.

   HINT: 

   The "Bluetooth" handsfree module is built into the radio receiver. If there is a problem between the "Bluetooth" handsfree module and radio receiver, replace the radio receiver.

   COMPONENT TABLE:
   
   

   Component	Proceed to
   Stereo component amplifier	Refer to Stereo Component Amplifier Communication Error .
   "Bluetooth" handsfree module	Refer to Bluetooth Handsfree Module Communication Error .
   Radio receiver	Refer to Radio Receiver Communication Error .

NEXT → END 

1. Clear the DTCs . Refer to DTC CHECK / CLEAR .

   HINT: 

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

NEXT: Go to next step 

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

   OK

   Malfunction disappears.

NG → See step   3 

OK → END