DTC 01-DC Transmission Error: Description

DTC DETECTION CONDITION

DTC No.	DTC Detection Condition	Trouble Area
01-DC	Transmission to component shown by sub-code failed. (Detecting this DTC does not always mean actual failure.)	If the same sub-code is recorded in other components, check harness for power supply and communication system of all components shown by code

NOTE:

The multi-display is the master unit.
Be sure to clear and recheck DTCs after the inspection is completed to confirm that no DTCs are output.

NOTE: Be sure to read DESCRIPTION before performing the following procedures.

CHECK FOR DTC OF OTHER COMPONENTS

Check if the component shown by the sub-code is displayed in the check result of the other components.

Check if "01 -DC" is output for the other components.
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 step 2.

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

B: GO TO STEP 4

A: Go to next step.

IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

Identify the component which has stored this code.

COMPONENT DESCRIPTION

HINT:

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

Fig 1: Identifying LAN Monitor Mode

CHECK COMPONENT WHICH HAS STORED THIS CODE

COMPONENT DESCRIPTION

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
Navigation ECU (NAVI)	Navigation ECU Communication Error
Multi-display (EMV)	Multi-display Communication Error

END

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.
RECHECK DTC
1. Recheck for DTCs and check if the same trouble occurs again.
OK: Malfunction disappears.

NG: GO TO STEP 3

OK: END