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
WARNING: This page is about a different car, the 2006 Lexus GS 430 and 2006 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 01-DD *1 | When device that should be master has been disconnected after engine starts |
|
| 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: This code may be stored if the engine is started, turned off, and then started again.
- *2: This code may be stored if the engine is started, idled for 60 seconds, turned off, and then started again.
- *3: Even if no failure is detected, a trouble code may be recorded depending on the battery condition or engine start voltage.
- CHECK RADIO RECEIVER POWER SOURCE CIRCUIT
(see RADIO RECEIVER POWER SOURCE CIRCUIT ) If the power source circuit is operating normally, proceed to the next step.
NEXT
- CHECK AVC-LAN CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER
(see AVC-LAN CIRCUIT BETWEEN RADIO RECEIVER AND AMP ) If the AVC-LAN circuit is operating normally, proceed to the next step.
NEXT
- CHECK RADIO RECEIVER ASSEMBLY
- Check that the malfunction disappears when the radio receiver assembly is replaced with a normal one.
OK : Malfunction disappears.
OK : REPLACE RADIO RECEIVER ASSEMBLY
NEXT: REPLACE STEREO COMPONENT AMPLIFIER
- Check that the malfunction disappears when the radio receiver assembly is replaced with a normal one.