Hi

I have a is350 2006 with the Nav system. I can no longer control the fan and the temperature. On the nav system, all the options are greyed out and no led are lighting up on the button. But if I press the windshield fan button I ear them start. Someone have an idea of what might be the problem?

Thanks

 

Have you checked the fuse?

 

yes but i'll take a second look to be sure

 

I've check the fuse and even try with another nav system. Any clues?