SUBWOOFER: Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITHOUT NAVIGATION SYSTEM ".

CHECK FUSE

Check that the subwoofer fuse is not blown.

Unit	Terminal	Signal name	Fuse No.
Subwoofer	6	Battery power	17

Is the fuse OK?

YES: GO TO 2

NO: Be sure to eliminate cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.
Disconnect subwoofer connector.

Check voltage between subwoofer harness connector B72 terminal 6 and ground.

(+)		(-)	Voltage (approx.)
Connector	Terminal	(-)	Voltage (approx.)
B72	6	Ground	Battery voltage

Fig 1: Checking Voltage Between Subwoofer Connector B72 Terminal 6 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is battery voltage present?

YES: GO TO 3

NO: Check harness between subwoofer and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Check continuity between subwoofer harness connector B72 terminal 5 and ground.

(+)		(-)	Continuity
Connector	Terminal	(-)	Continuity
B72	5	Ground	Yes

Fig 2: Checking Continuity Between Subwoofer Harness Connector B72 Terminal 5 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Does continuity exist?

YES: Inspection End.

NO: Repair harness or connector.