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 AUX IN JACK HARNESS CONTINUITY

Turn ignition switch OFF.
Disconnect audio unit connector M169 and AUX in jack connector M104.

Check continuity between audio unit connector M169 and AUX in jack connector M104.

Audio unit		AUX in jack		Continuity
Connector	Terminal	Connector	Terminal
M169	54	M104	3	Yes
	55		1
	56		6

Check continuity between audio unit connector M169 and ground.

Audio unit		-	Continuity
Connector	Terminal
M169	55	Ground	No
	56

Is the inspection result normal?

YES

Replace the AUX in jack. Refer to Removal and Installation .

Repair or replace harness or connectors.