Power Supply and Ground Circuit Check for NAVI Control Unit

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

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

NAVI CONTROL UNIT FUSE CHECK CHART

Terminals		Power source	Fuse No.
Connector	Terminal (Wire color)	Power source	Fuse No.
M62	2 (Y), 3 (Y)	Battery power	38
M62	6 (P/B)	ACC power	6

OK or NG

OK : GO TO 2.
NG : If fuse is blown, be sure to eliminate case of malfunction before installing new fuse, Refer to POWER DISTRIBUTION .

CHECK POWER SUPPLY CIRCUIT

Disconnect NAVI control unit connector.
Check voltage between connector terminals and ground as follows.

NAVI CONTROL UNIT CONNECTOR POWER SUPPLY CIRCUIT CHECK CHART

Terminals			Ignition switch position
(+)		(-)	OFF	ACC	ON
Connector	Terminal (Wire color)	(-)	OFF	ACC	ON
M62	2 (Y), 3 (Y)	Ground	Battery voltage	Battery voltage	Battery voltage
M62	6 (P/B)	Ground	0V	Battery voltage	Battery voltage

Fig 1: Checking Voltage Between NAVI Control Unit Connector Terminals And Ground

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

OK or NG

OK : GO TO 3.
NG : Check harness for open or short between NAVI control unit and fuse.

CHECK GROUND CIRCUIT

Check continuity between the following NAVI control unit and ground.

NAVI CONTROL UNIT CONNECTOR GROUND CIRCUIT CHECK CHART

Terminals			Ignition switch	Continuity
(+)		(-)
Connector	Terminal (Wire color)
M62	1 (B), 4 (B)	Ground	OFF	Yes

OK or NG

OK : INSPECTION END.
NG : Repair or replace harness.

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

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