Diagnosis Procedure

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.

CHECK AUX IN JACK HARNESS CONTINUITY

Turn ignition switch OFF.
Disconnect audio unit connector M94 and front auxiliary input jacks connector M67.

Check continuity between audio unit connector M94 and front auxiliary input jacks connector M67.

Audio unit		Front auxiliary input jacks		Continuity
Connector	Terminal	Connector	Terminal
M94	35	M67	1	Yes
	36		3
	55		4

Check continuity between audio unit connector M94 and ground.

Audio unit		--	Continuity
Connector	Terminal
M94	35	Ground	No
	55

Is the inspection result normal?

YES

Replace the front auxiliary input jacks. Refer to Removal and Installation .

Repair or replace harness or connectors.