BOSE SPEAKER AMP: Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CHECK FUSE

Check that the BOSE speaker amp. fuse is not blown.

Unit	Terminal	Signal name	Fuse No.
BOSE speaker amp.	11	Battery power	31

Are the fuses 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 BOSE speaker amp. connector.

Check voltage between BOSE speaker amp. harness connector M112 terminal 11 and ground.

(+)		(-)	Voltage (approx.)
Connector	Terminal	(-)	Voltage (approx.)
M112	11	Ground	Battery voltage

Fig 1: Checking Voltage Between Bose Speaker Amp. Harness Connector Terminal 11 & Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is battery voltage present?

YES: GO TO 3.

NO: Check harness between BOSE speaker amp. and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect BOSE speaker amp. connector.

Check continuity between BOSE speaker amp. harness connector M112 terminal 12 and ground.

(+)		(-)	Continuity
Connector	Terminal	(-)	Continuity
M112	12	Ground	Yes

Fig 2: Checking Continuity Between Bose Speaker Amp. Harness Connector Terminal 12 & Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Does continuity exist?

YES: Inspection End.

NO: Repair harness or connector.