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.

For Wiring Diagram information, refer to appropriate wiring diagram.

CHECK USB INTERFACE HARNESS CONTINUITY

Turn ignition switch OFF.
Disconnect audio unit connector M180 and USB interface connector M185.

Check continuity between audio unit connector M180 and USB interface connector M185.

Audio unit		USB interface		Continuity
Connector	Terminal	Connector	Terminal
M180	61	M185	1	Yes
	63		3
	64		4
	65		5
	66		6

Check continuity between audio unit connector M180 and ground.

Audio unit		-	Continuity
Connector	Terminal
M180	61	Ground	No
	64

Is the inspection result normal?

YES

Replace the USB interface. Refer to Removal and Installation .

Repair or replace harness or connectors.