DTC 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 FUSE

Check that the following fuses of the AV control unit are not blown:

Unit	Terminals	Signal name	Fuse No.
AV control unit	19	Battery power	17 (15 A)
	7	Ignition switch ACC or ON	9 (10 A)
	37	Ignition switch ON or START	12 (10 A)

Are the fuses OK?

YES

GO TO 2

Replace the fuse after repairing the affected circuit. Refer to Circuit Inspection .

AV CONTROL UNIT POWER SUPPLY CIRCUIT CHECK

Disconnect AV control unit connector.

Check voltage between the AV control unit connectors and ground.

Unit	Terminal No.			Ignition switch position
	(+)		(-)	OFF	ACC	ON
	Connector	Terminal
AV control unit	M44	19	Ground	Battery voltage	Battery voltage	Battery voltage
		7	Ground	0 V	Battery voltage	Battery voltage
	M46	37	Ground	0 V	0 V	Battery voltage

Are the voltage results as specified?

YES

GO TO 3

Check harness between AV control unit and fuse.

CHECK GROUND CIRCUIT

Check continuity between AV control unit harness connector M44 and ground.

(+)		(-)	Continuity
Connector	Terminal
M44	20	Ground	Yes

Does continuity exist?

YES

Inspection End.

Repair harness or connector.