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 - WITH NAVIGATION SYSTEM ".

CHECK AMP ON SIGNAL (BOSE SPEAKER AMP)

Turn audio system ON.

Check voltage between BOSE speaker amp. harness connector B75 terminal 31 and ground.

(+)		(-)	Value (Approx.)
Connector	Terminal	(-)	Value (Approx.)
B75	31	Ground	Battery Voltage

Fig 1: Checking Voltage Between Bose Speaker Amp. Connector B75 Terminal 31 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is battery voltage present?

YES: Inspection End.

NO: GO TO 2

CHECK AMP ON SIGNAL (AV CONTROL UNIT)

Check voltage between AV control unit harness connector M39 terminal 1 and ground.

(+)		(-)	Value (Approx.)
Connector	Terminal	(-)	Value (Approx.)
M39	1	Ground	Battery Voltage

Fig 2: Checking Voltage Between AV Control Unit Connector M39 Terminal 1 And Ground

Courtesy of NISSAN NORTH AMERICA, INC.

Is battery voltage present?

YES: Repair harness or connector.

NO: Replace AV control unit. Refer to "REMOVAL AND INSTALLATION ".