Method Of Starting

WARNING: This page is about a different car, the 2016 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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.