Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD and 2018 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to the appropriate Wiring Diagram .

CHECK USB INTERFACE HARNESS CONTINUITY

Turn ignition switch OFF.
Disconnect AV control unit connector M143 and USB interface connector M185.

Check continuity between AV control unit connector M143 and USB interface connector M185.

AV control unit		USB interface		Continuity
Connector	Terminal	Connector	Terminal
M143	45	M185	1	Yes
	47		3
	48		4
	49		5
	50		6

Check continuity between AV control unit connector M143 and ground.

AV control unit		-	Continuity
Connector	Terminal
M143	45	Ground	No
	48

Is the inspection result normal?

YES

Replace the USB interface. Refer to Removal and Installation .

Repair or replace harness or connectors.