I have lost all audio from the Stereo and Navigation in my 08 Lexus LS460. It has the Mark Levinson system and nothing has been done to alter the stock setup and it has been working fine until now.

On the audio settings screen, the treble and bass settings have set themselves all the way to the max and are not adjustable. Also, the other setting for focusing the sound is stuck on the rear back corner of the cabin. The screen registers being touched but the settings will not adjust.

All other screen functions are working normally.

Thank you in advance for any help with this.

 

I am not sure what the audio screen on the nav looks like when your amp dies, but if your not getting any sound, more than likely your ML audio amplifier has died. That is a very common component to fail on the LS460s, your dealer should be able to replace it for you under warranty, its located in the trunk, next to your spare on the passenger side. Its about an hour to have them replace it with a new one.

 

If it happens to be the amplifier and you're out of warranty, I want you to know that one of your options is to fix it and not replace it with a new one for $1,000+.

Search the forum and you'll find a thread where this particular point is throughly discussed. As for the symptoms you listed, I'm not sure what they mean but if hands-free phone is also not working then it's most likely the amplifier.

 

I have read the many posts regarding the amp failure. Did anyone have issues with the sound adjustment screen when their amp quit working? Also, did the nav sound stop as well?

 

Sound from both the Nav and stereo goes out. I'm not sure about adjustments though

 

FrankC1: did you find the problem i have the same problem with my 08 LS460 L

 

did you find the problem? if any one know the problem please let me know

thank you in advance

 

All audio goes through ML amp this includes nav....3 options are repair replace or upgrade to aftermarket....none of the options are cheap but one thing is for sure ML amps ate known for dying so buying one used isn't recommended

 

https://www.clublexus.com/forums/ls4...pair-tech.html

 

Do you have the I agree screen where you have to hit ok on your Nav before advancing to the next screen on start up? If so I may have a solution

 

It's pretty straight forward an amp in protection mode produces no sound....but malfunctioning in the nav unit is another issue....radios are all sensitive to voltage changes and this is typically what causes malfunctioning in head units....amp is separate in this case

 

United Radio Service, Inc.
5705 Enterprise Pkwy
E Syracuse NY 13057
(800) 448-0944 ext.3578

They can answer your questions AND repair your unit by mail.

 

yes i pay 30$ and the repair for me 1st check the the fuse in passenger side in the middle have a big fuse if it's fine the your AMP need repair,

 

Mine just started making a pulsing sound on the way home from work. PISSED

 

Post up what your "solution" is please...