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 AV control unit, Bose speaker amp. and subwoofer connectors for the following:
- Proper connection
- Damage
- Disconnected or looses terminals
Is the inspection result normal?

YES

GO TO 2.

NO

Repair the terminal and connector.

CHECK SUBWOOFER SIGNAL CIRCUIT CONTINUITY

Disconnect Bose speaker amp. connector and subwoofer connector.

Check continuity between Bose speaker amp. connector and subwoofer connector.

Bose speaker amp.		Subwoofer		Continuity
Connector	Terminal	Connector	Terminal
B129	8	B73	1	Yes
	13		2
	6		3
	5		4

Check continuity between Bose speaker amp. connector and ground.

Bose speaker amp.		Ground	Continuity
Connector	Terminal
B129	8	--	No
	13
	6
	5

Is the inspection result normal?

YES

GO TO 3.

Repair or replace harness or connectors.

CHECK SUBWOOFER SIGNAL

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

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

Bose speaker amp. connector		Condition	Reference value
(+)	(-)
Terminal	Terminal
13	8	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
5	6

Is the inspection result normal?

YES

Replace subwoofer. 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	4	B130	24	Yes
	5		23
	13		26
	14		25

Check continuity between AV control unit connector M161 and ground.

AV control unit		Ground	Continuity
Connector	Terminal
M161	4	--	No
	5
	13
	14

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
4	5	Audio signal output	Courtesy of NISSAN NORTH AMERICA, INC.
13	14

Is the inspection result normal?

YES

Replace Bose speaker amp. Refer to Removal and Installation .

Replace AV control unit. Refer to Removal and Installation .