NAVI CONTROL UNIT : Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Juke. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

Check for blown fuses.

FUSE REFERENCE CHART

Power source	Fuse No.
Battery	34
Ignition switch ACC or ON	19

Is inspection result OK?

YES: GO TO 2.

NO: Be sure to eliminate cause of malfunction before installing new fuse.

CHECK POWER SUPPLY CIRCUIT

Check voltage between NAVI control unit harness connector and ground.

VOLTAGE REFERENCE CHART

Signal name	NAVI control unit	Probe		Condition	Reference value
	NAVI control unit	Terminal		Condition
	Connector	(+)	(-)	Ignition switch
Battery power supply	M107	19	20	OFF	Battery voltage
ACC power supply	M107	7	20	ACC	Battery voltage

Is inspection result OK?

YES: GO TO 3.

NO: Check harness between NAVI control unit and fuse.

CHECK GROUND CIRCUIT

Turn ignition switch OFF.
Disconnect NAVI control unit connector.
Check continuity between NAVI control unit harness connector and ground.

CONTINUITY REFERENCE CHART

Signal name	Connector	Terminal	Ignition switch position	Continuity
Ground	M107	20	OFF	Existed

Is inspection result OK?

YES: INSPECTION END

NO: Repair harness or connector.