Guide Sound is Not Heard

WARNING: This page is about a different car, the 2004 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)
- Is volume setting not switched ON?
NOTE: Voice guide is only available at intersections that satisfy certain conditions (indicated by "BULLET" on the map). Therefore, guidance may not be given even when the route on the map changes direction.

Yes or No
1. Yes : GO TO 2.
2. No : Switch the setting ON and turn the volume up.

CHECK HARNESS

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

Check continuity between NAVI control unit and audio unit.

NAVI CONTROL UNIT AND AUDIO UNIT TERMINALS CONTINUITY

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

Check continuity between NAVI control unit and ground.

NAVI CONTROL UNIT TERMINALS CONTINUITY

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

Fig 1: Checking Continuity Between NAVI Control Unit And Audio Unit Connector Terminals

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

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.
  7 (B)-8 (W) : Refer to , "TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
  
  Fig 2: Checking Voltage Signal Between NAVI Control Unit Harness Connector B151 Terminal 7 (B) And 8 (W)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK : Replace audio unit. Refer to REMOVAL AND INSTALLATION FOR AUDIO UNIT
2. NG : Replace NAVI control unit. Refer to , "REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT ".