Post by
wideopn11 »
https://forums.nicoclub.com/wideopn11-u207867.html
Wed Jul 09, 2014 7:31 am
You can try this, it was meant for G37 but the software may be mostly the same.
1. Start the engine.
2. Turn the audio system OFF.
3. While pushing the “SETTING” button, turn the volume control dial clockwise or counterclockwise for 40 clicks or more. (When the self-diagnosis mode is started, a short beep will be heard.) • Shifting from current screen to previous screen is performed
by pushing “BACK” button.
4. The trouble diagnosis initial screen is displayed, and then the items of “Self Diagnosis” and “Confirmation/Adjustment” can be selected.
Just don't break anything if you get to diagnostics.