Power Supply and Ground Circuit Check for NAVI Control Unit

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

Make sure the following fuses for the NAVI control unit are not blown.

POWER SUPPLY AND GROUND CIRCUIT CHECK FOR NAVI CONTROL UNIT

Terminals		Power source	Fuse No.
Connector	Terminal	Power source	Fuse No.
M96	2	Battery power	3
M96	5	ACC or ON power	6

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 NAVI control unit connector M96.

Check voltage between connector terminals and ground as follows.

POWER SUPPLY CIRCUIT

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal	(-)	OFF	ACC	ON
M96	2	Ground	Battery voltage	Battery voltage	Battery voltage
M96	5	Ground	0V	Battery voltage	Battery voltage

Fig 1: Checking Voltage Between Connector Terminals And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 3.

NG: Check harness for open between NAVI control unit and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.

Check continuity between the following NAVI control unit terminals and ground.

GROUND CIRCUIT

Terminals			Ignition switch	Continuity
Connector	Terminal	-	Ignition switch	Continuity
M96	1	Ground	OFF	Yes

Fig 2: Checking Continuity Between NAVI Control Unit Terminals And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Inspection End.

NG: Repair or replace harness.