Dtc 01-Dd Master Reset (Dsp Amp)

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 (RADIO RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER)

CHECK RADIO RECEIVER ASSEMBLY

DTC 01-DD Master Reset (DSP AMP)

DTC 01-DF Master Error (DSP AMP)

DTC 01-E1 Voice Processing Device ON Error (DSP AMP)


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. Radio receiver assembly
  3. Stereo component amplifier
01-DF
*2
When a 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
01-E1
*3
When stereo component amplifier device records that stereo component amplifier output does not function even while source device operates
HINT:
  1. *1: This code may be stored if the engine 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.
  3. *3: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage.

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 (RADIO RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER)
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