Power Supply and Ground Circuit Check for AV Switch

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

Make sure the following fuses of the AV switch are not blown.

BLOWN FUSE REFERENCE

Terminals		Power source	Fuse No.
Connector	Terminal	Power source	Fuse No.
M98	1	Battery power	31
M98	2	ACC power	4

OK or NG

OK : GO TO 2.

NG : If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to POWER SUPPLY ROUTING CIRCUIT .

CHECK POWER SUPPLY CIRCUIT

Disconnect AV switch connector.

Check voltage between connector terminals and ground as follows.

VOLTAGE SPECIFICATIONS

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal	(-)	OFF	ACC	ON
M98	1	Ground	Battery voltage	Battery voltage	Battery voltage
M98	2	Ground	0V	Battery voltage	Battery voltage

Fig 1: Identifying Voltage Between Connector Terminals 1, 2 And Ground

OK or NG

OK : GO TO 3.

NG : Check harness for open between AV switch and fuse.

CHECK GROUND CIRCUIT

Check continuity between AV switch and ground as follows.

CONTINUITY CONDITIONS

Terminals			Ignition switch	Continuity
Connector	Terminal	-	Ignition switch	Continuity
M98	5	Ground	OFF	Yes

OK or NG

OK : Inspection End.

NG : Repair or replace harness.

Fig 2: Identifying Continuity Between AV Switch Terminal 6 And Ground