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.

CHECK FUSE
Check fuses [No. 14 and 30, located in the fuse block (J/B)].

NOTE: Refer to Terminal Arrangement .

Is the inspection result normal?

YES

GO TO 2 .

NO

Replace the blown fuse after repairing the affected circuit.

CHECK A/C AUTO AMP. POWER SUPPLY

Turn ignition switch OFF.
Disconnect A/C auto amp. connector.

Check voltage between A/C auto amp. harness connector and ground.

(+)		(-)	Voltage
A/C auto amp.			Ignition switch position
Connector	Terminal		OFF	ACC	ON
M137	3	Ground	Battery voltage	Battery voltage	Battery voltage
	23		Approx. 0 V	Approx. 0 V	Battery voltage

Is the inspection result normal?

YES

GO TO 3 .

Repair harness or connector between A/C auto amp. and fuse block (J/B).

CHECK A/C AUTO AMP. GROUND CIRCUIT

Turn ignition switch OFF.

Check continuity between A/C auto amp. harness connector and ground.

A/C auto amp.		(-)	Continuity
Connector	Terminal
M137	2	Ground	Yes
	22

Is the inspection result normal?

YES

Inspection End.

Repair harness or connector.