Sound Is Not Heard From Front Door Speaker or Front Tweeter (Base and Mid Level System)

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

HARNESS CHECK

Disconnect audio unit connector M43 and suspect speaker or tweeter connector.

Check continuity between audio unit harness connector M43 terminal and suspect speaker or tweeter harness connector terminal.

TERMINAL CONTINUITY CHART

Terminals				Continuity
Audio unit		Speaker or tweeter
Connector	Terminal	Connector	Terminal
M43	2	D12	+	Yes
	1	D12	-
	4	D112	+
	3	D112	-
	2	M109	+
	1	M109	-
	4	M111	+
	3	M111	-
With mid-level system

Check continuity between audio unit harness connector M43 terminal and ground.

TERMINAL CONTINUITY CHART

Terminals			Continuity
Audio unit		-
Connector	Terminal	-
M43	2	Ground	No
	1
	4
	3

Fig 1: Checking Continuity Between Audio Unit Connector M43 Terminal And Suspect Speaker (Crew Cab) Connector Terminal

OK or NG

OK: GO TO 2.

NG:

Check connector housings for disconnected or loose terminals.
Repair harness or connector.

FRONT SPEAKER SIGNAL CHECK

Connect audio unit connector and front speaker or tweeter connector.
Turn ignition switch to ACC.
Push "POWER" switch.

Check the signal between audio unit harness connector terminal and ground with CONSULT-II or oscilloscope.

TERMINAL SIGNAL CHART

Terminals				Condition
(+)		(-)
Connector	Terminal	Connector	Terminal
M43	2	M43	1	Receive audio signal
M43	4	M43	3	Receive audio signal

OK or NG

OK: Replace speaker. Refer to "FRONT DOOR SPEAKER ".

NG: Replace audio unit. Refer to "REMOVAL AND INSTALLATION ".

Fig 2: Checking Voltage Between Audio Unit Connector Terminals And Ground