Method Of Starting

Start the engine.
Turn the audio system OFF.
Press the MENU button.

Fig 1: Identifying Menu Button
Courtesy of NISSAN NORTH AMERICA, INC.
While menu button is pressed rotate the volume encoder left, right, and left. On each rotation, it should be at least 7 clicks.

Fig 2: Identifying Volume Encoder Knob
Courtesy of NISSAN NORTH AMERICA, INC.
The trouble diagnosis initial screen is displayed, and then the items of "Self Diagnosis" and "Confirmation/Adjustment" can be selected.
NOTE:
When a diagnostic screen is not displayed, press the "MENU" switch. And then, restart from the procedure of Step 3.