Is220D Mark Levinson Audio Diagnostic Codes

[anishparmar]

Hi all

Its my first time posting here, and i am after some desperate help.

I have a 2007 IS220d SE with the ML audio system and Sat Nav. Last week the i heard a crackle and pop and the speakers stopped playing sound, i heard only a low buzz. After restarting the car, the audio came on again and went off a few seconds later.

Doing this several times later the sound was just dead. I removed the amp, looked for signs of damage, of which there were non, refitted it and all worked fine for about 30 minutes. I have sppoken to an audio expert who has said it could be the amp or the amp sender circuit built into the head unit. Has anyone had similar issues and identified the cause??

I have looked at the hidden diagnostics codes, which give me the following:

LAN Monitor Audio Code: 01-DC, sub code 440-CD-F

LAN Monitor NAVI Code: 01-DC, Sub codes 190-A8-1,

01-DC 440-82-D

01-DD 110-FB-1

01-E0 -00-F

01-E3 -00-F

LAN Monitor EMV code: 01-D5, sub code 440-8A-F

01-DC, 190-C7-F

01-DA 440-CA-F

01-D8 440-CA-9

01-DA 178-71-2

01-D5 1AC-B0-1

Does anyone know what the above codes mean?

Any help greatly appreciated.