Guide Sound Is Not Heard

WARNING: This page is about a different car, the 2005 Infiniti G35. 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.
- Is volume setting not switched ON?
NOTE: Voice guide is only available at intersections that satisfy certain conditions. Therefore, 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.
VOICE GUIDE HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and audio unit connector.
3. Check continuity between NAVI control unit harness connector and audio unit harness connector.
  
  Fig 1: Navi Control Unit Connector M57 Terminal 7, 8, 9, 24 Audio Unity Connector M39 Terminal 32, 30, 31 & 24 Continuity Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Navi Control Unit Connector M57 Terminal 7, 8, 9, 24 & Ground Continuity Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between NAVI control unit and ground.
  
  Fig 3: Navi Control Unit Connector M57 Terminal 7, 8, 9, 24 Audio Unity Connector M39 Terminal 32, 30, 31, 24 & Ground Continuity Test
  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 audio unit.
  - Check connector housings for disconnected or loose terminals.
VOICE GUIDE ON SIGNAL CHECK
1. Connect NAVI control unit connector and audio unit connector.
2. Turn ignition switch ON.
3. Push "VOICE" switch.
4. Check the signal between NAVI control unit harness connector M57 terminal 24 (R/B) and 9 (B) with CONSULT-II or oscilloscope.
  24 (R/B) - 9 (B): Refer to " TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
  
  Fig 4: Navi Control Unit Harness Connector M57 Terminal 24 & 9 Signal Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 4.
- NG: Replace NAVI control unit.
VOICE GUIDE SIGNAL CHECK
1. Push the "VOICE" switch.
2. Check the signal between NAVI control unit harness connector M57 7 (L/W) and 8 (W/B) with CONSULT-II or oscilloscope.
  
  Fig 5: Navi Control Unit Harness Connector M57 Terminals 7 & 8 Signal Specifications Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Navi Control Unit Harness Connector M57 Terminals 7 & 8 Signal Test
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace audio unit.
- NG: Replace NAVI control unit