Guide Sound Is Not Heard

WARNING: This page is about a different car, the 2003 Infiniti M45. 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 (indicated by on the map). 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.
HARNESS CHECK
1. Turn ignition switch OFF.
2. Disconnect AV and NAVI control unit connector and Bose speaker amp. connector.
3. Check continuity between AV and NAVI control unit and Bose speaker amp.
  
  Fig 1: Electrical Testing Specifications (Guide Sound Not Heard - 1 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between AV and NAVI control unit and ground.
  
  Fig 2: Electrical Testing Specifications (Guide Sound Not Heard - 2 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Harness Check (Guide Sound Not Heard Signal At AV & NAVI Control Unit)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK >> GO TO 3.

NG >> Repair harness.
VOICE GUIDE CHECK
1. Connect AV and NAVI control unit connector and Bose speaker amp. connector.
2. Turn ignition switch ON.
3. Check the signal between AV and NAVI control unit harness connector B30 terminal 7 (R) and 8 (L) with CONSULT-II or oscilloscope.
  1. 7 (R) - 8 (L) : Refer to " TERMINALS AND REFERENCE VALUE FOR AV AND NAVI CONTROL UNIT " .
OK or NG

OK >> Replace Bose speaker amp.

NG >> Replace AV and NAVI control unit.

Fig 4: Checking Voice Guide Signal (At AV & NAVI Control Unit)
Courtesy of NISSAN MOTOR CO., U.S.A.