Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

CONNECTOR CHECK
Check the Bose speaker amp. and speaker connectors for the following:
- Proper connection
- Damage
- Disconnected or loose terminals
Is the inspection result normal?

YES

GO TO 2.

NO

Repair the terminals or connectors.

CHECK CENTER SPEAKER SIGNAL CIRCUIT CONTINUITY

Disconnect Bose speaker amp. connector B130 and center speaker connector.

Check continuity between Bose speaker amp. connector B130 and center speaker connector.

Bose speaker amp.		Center speaker		Continuity
Connector	Terminal	Connector	Terminal
B130	16	M110	1	Yes
	17		2

Check continuity between Bose speaker amp. connector B130 and ground.

Bose speaker amp.		Ground	Continuity
Connector	Terminal
B130	16	--	No
	17

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness or connectors.

CHECK CENTER SPEAKER SIGNAL

Connect Bose speaker amp. connector B130 and center speaker connector.
Turn ignition switch to ACC.
Push AV control unit POWER switch.

Check the signal between the terminals of Bose speaker amp. connector B130.

Bose speaker amp. connector B130		Condition	Reference value
(+)	(-)
Terminal	Terminal
16	17	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES

Replace center speaker. Refer to Removal and Installation .

GO TO 4.

CHECK PRE-AMP SIGNAL CIRCUIT CONTINUITY

Disconnect AV control unit connector M161 and Bose speaker amp. connector B130.

Check continuity between AV control unit connector M161 and Bose speaker amp. connector B130.

AV control unit		Bose speaker amp.		Continuity
Connector	Terminal	Connector	Terminal
M161	2	B130	35	Yes
	3		36
	11		33
	12		34

Check continuity between AV control unit connector M161 and ground.

AV control unit		Ground	Continuity
Connector	Terminal
M161	2	--	No
	3
	11
	12

Is the inspection result normal?

YES

GO TO 5.

Repair or replace harness or connectors.

CHECK PRE-AMP SIGNAL

Connect AV control unit connector M161 and Bose speaker amp. connector B130.
Turn ignition switch to ACC.
Push AV control unit POWER switch.

Check signal between the terminals of AV control unit connector M161.

AV control unit connector M161		Condition	Reference value
(+)	(-)
Terminal	Terminal
2	3	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
11	12

Is the inspection result normal?

YES

Replace Bose speaker amp. Refer to Removal and Installation .

Replace AV control unit. Refer to Removal and Installation .