Dtc 01-Dc Transmission Error

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Navigation. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC OF OTHER COMPONENTS

IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE

CHECK COMPONENT WHICH HAS STORED THIS CODE

CLEAR DTC

RECHECK DTC

DTC 01-DC Transmission Error


DESCRIPTION


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

INSPECTION PROCEDURE

NOTICE:
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 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


2.IDENTIFY THE COMPONENT WHICH HAS STORED THIS CODE


    Lexus Is250, Is220D. Gse20 Ale20.Navigation.Navigation System. Dtc 01-Dc Transmission Error

  1. Enter the diagnostic mode.

  1. Press the "LAN Mon" switch to change to "LAN Monitor" mode.

  1. Identify the component which has stored this code.

    Component Table:
    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
    CAMERA-C (1AC)
    		Television camera ECU
    HINT:
    "NAVI" is the component which has stored this code in the example shown in the illustration.

NEXT


3.CHECK COMPONENT WHICH HAS STORED THIS CODE

  1. Select the component which has stored this code.

    Component Table:
    Component
    		Proceed to
    Gateway ECU (G/W)
    		Gateway ECU communication error (Click here)
    Radio receiver (AUDIO H/U)
    		Radio receiver communication error (Click here)
    Stereo component amplifier (DSP-AMP)
    		Stereo component amplifier communication error (Click here)
    Navigation ECU (NAVI)
    		Navigation ECU communication error (Click here)
    Multi-display (EMV)
    		Multi-display communication error (Click here)
    Television camera ECU
    (CAMERA-C)
    		Television camera ECU communication error (Click here)

NEXT

END

4.CLEAR DTC

  1. Clear the DTCs (Click here).

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

NEXT


5.RECHECK DTC

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

OK:
Malfunction disappears.


NG
Go to step 3
OK

END