Diagnosis System (Audio Unit): Description

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

The audio unit on board diagnosis performs the functions listed in the table below:

Mode		Description
Self Diagnosis		Audio unit diagnosis.
Confirmation/Adjustment	Display Diagnosis	The following check functions are available: color tone check by color spectrum bar display and gray scale check by gradation bar display.
	Vehicle Signals	Diagnosis of signals can be performed for vehicle speed, lights, reverse, EQ pin, ignition, destination and camera type.
	Speaker Test	The connection of a speaker can be confirmed by test tone.
	Error History	The system malfunction and the frequency when occurring in the past are displayed. When the malfunctioning item is selected, the time and place that the selected malfunction last occurred are displayed.
	Camera System	Displayed but not used.
	AV COMM Diagnosis	Displayed but not used.
	Delete Unit Connection Log	Erase the connection history of unit and error history.
	Version Information	Displays the audio system version information.
	Initialize Setting	Initializes the audio unit memory.