Dtc 01-Dd Master Reset (G/W)

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Audio Visual. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

INSPECTION PROCEDURE

CHECK POWER SOURCE CIRCUIT (RADIO RECEIVER ASSEMBLY)

CHECK AVC-LAN CIRCUIT (GATEWAY ECU - RADIO RECEIVER ASSEMBLY)

CHECK RADIO RECEIVER ASSEMBLY

DTC 01-DD Master Reset (G/W)

DTC 01-DF Master Error (G/W)


DESCRIPTION


DTC No.
DTC Detection Condition
Trouble Area
01-DD
*1
When device that should be master has been disconnected after engine starts
  1. Wire harness
  2. Gateway ECU
  3. Radio receiver assembly
01-DF
*2
When device with display fails and master is switched to audio device. Also when communication error between sub master (audio) and master occurs, this code is stored
HINT:
  1. *1: This code may be stored if the engine switch is started, turned off, and then started again.
  2. *2: This code may be stored if the engine is started, idled for 60 seconds, turned off, and then started again.

INSPECTION PROCEDURE

1.CHECK POWER SOURCE CIRCUIT (RADIO RECEIVER ASSEMBLY)
Please follow this page (Click here).
If the power source circuit is operating normally, proceed to the next step.

NEXT


2.CHECK AVC-LAN CIRCUIT (GATEWAY ECU - RADIO RECEIVER ASSEMBLY)
Please follow this page (Click here).
If the AVC-LAN circuit is operating normally, proceed to the next step.

NEXT


3.CHECK RADIO RECEIVER ASSEMBLY

  1. Check that the malfunction disappears when the radio receiver assembly is replaced with a normal one.

    OK:
    Malfunction disappears.


OK
REPLACE RADIO RECEIVER ASSEMBLY
NG

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE