Guide Sound is Not Heard

WARNING: This page is about a different car, the 2005 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

CHECK VOICE GUIDE SETTING
While driving in the dark pink route, voice guide does not operate. (note)

NOTE: Voice guide is only available at intersections that satisfy certain conditions (indicated by O on the map). Therefore, guidance may not be given even when the route on the map changes direction.

Is volume setting switched OFF?
- YES: Switch the setting ON and turn the volume up.
- NO: GO TO 2.

CHECK HARNESS

Turn ignition switch OFF.
Disconnect NAVI control unit connector B151 and audio unit connector M45.

Check continuity between NAVI control unit and audio unit.

Fig 1: Checking Continuity Between NAVI Control Unit And Audio Unit And Ground

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

CONTINUITY BETWEEN NAVI CONTROL UNIT AND AUDIO UNIT

Terminals				Continuity
NAVI control unit		Audio unit
Connector	Terminal (Wire color)	Connector	Terminal (Wire color)
B151	7 (B)	M45	71 (B)	Yes
B151	8 (W)	M45	69 (W)	Yes

Check continuity between NAVI control unit and ground.

CONTINUITY BETWEEN NAVI CONTROL UNIT AND GROUND

Terminals			Continuity
NAVI control unit		-
Connector	Terminal (Wire color)	-
B151	7 (B)	Ground	No
B151	8 (W)	Ground	No

OK or NG

OK: GO TO 3.
NG: Repair harness.

CHECK VOICE GUIDE
1. Connect NAVI control unit connector and audio unit connector.
2. Turn ignition switch ON.
3. Check signal between NAVI control unit harness connector B151 terminal 7 (B) and 8 (W) with CONSULT-II or oscilloscope.
  
  Fig 2: Checking Signal Between NAVI Control Unit Harness Connector B151 Terminal 7 And 8
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  7 (B) - 8 (W): Refer to " TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
OK or NG
- OK: Replace audio unit. Refer to "REMOVAL AND INSTALLATION FOR AUDIO UNIT ".
- NG: Replace NAVI control unit. Refer to "REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT ".