Guide Sound is Not Heard

WARNING: This page is about a different car, the 2005 Infiniti QX56. 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 on the map). There-fore, guidance may not be given even when the route on the map changes direction.

YES or NO
- YES: GO TO 2.
- NO: Switch the setting ON and turn the volume up.
CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and audio unit connector M45.
3. Check continuity between NAVI control unit and audio unit.
  
  Fig 1: NAVI Control Unit Connector B151 And Audio Unit Connector M45 Terminals Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Continuity Between NAVI Control Unit And Audio Unit
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between NAVI control unit and ground.
  
  Fig 3: NAVI Control Unit Connector B151 Terminals And Ground Continuity Specifications
  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 4: Checking Signal Between NAVI Control Unit Harness Connector B151 Terminal 7 And 8 With CONSULT-II Or Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
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 ".