Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CONNECTOR CHECK
Check the AV control unit and rear 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 REAR SPEAKER SIGNAL CIRCUIT CONTINUITY

Disconnect AV control unit connector M160 and suspect rear speaker connector.

Check continuity between AV control unit connector M160 and suspect rear speaker connector.

AV control unit		Rear speaker		Continuity
Connector	Terminal	Connector	Terminal
M160	4	B73 (LH)	1	Yes
	5		2
	13	B72 (RH)	1
	14		2

Check continuity between AV control unit connector M160 and ground.

AV control unit		Ground	Continuity
Connector	Terminal
M160	4	-	No
	5
	13
	14

Is the inspection result normal?

YES

GO TO 3 .

Repair or replace harness or connectors.

CHECK REAR SPEAKER SIGNAL

Connect AV control unit connector M160 and suspect rear speaker connector.
Turn ignition switch to ON.
Push AV control unit POWER switch.

Check signal between AV control unit connector M160 and ground.

AV control unit connector M160		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 rear speaker. Refer to Removal and Installation .

Replace AV control unit. Refer to Removal and Installation .