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Home >> Nissan-Datsun >> 2003 >> 350Z Automatic >> Repair and Diagnosis >> Electrical >> Gauges >> Navigation System >> Navigation System >> Guide Sound Is Not Heard

Guide Sound Is Not Heard

  1. CHECK VOICE GUIDE SETTING. 
    • While driving in the dark pink route, voice guide does not operate. (note)
    • Is volume setting not switched ON? NOTE:
    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 

    1. YES : GO TO 2.
    2. NO : Switch the setting ON and turn the volume up.
  2. VOICE GUIDE HARNESS CHECK 
    1. Turn the ignition switch OFF.
    2. Disconnect NAVI control unit connector and audio unit connector.
    3. Check continuity between NAVI control unit and audio unit.
      Fig 1: Terminals Continuity Chart
      G02851504Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between NAVI control unit and ground.
      Fig 2: Terminals Continuity Chart
      G02851505Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: Checking Continuity Between NAVI Control Unit And Ground
      G02851506Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 3.
    2. NG :
      • Check connector housings for disconnected or loose terminals.
      • Repair harness or connector.
  3. 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 B105 terminal 37 (BR) and ground with CONSULT-II or oscilloscope.
      1. 37 (BR) - Ground : Refer to  "TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT  ".
      Fig 4: Checking Signal Between NAVI Control Unit Harness Connector B105 Terminal 37 (Br) And Ground
      G02851507Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 4.
    2. NG : Replace NAVI control unit.
  4. VOICE GUIDE SIGNAL CHECK 
    1. Push the "VOICE" switch.
    2. Check the signal between NAVI control unit and ground with CONSULT-II or oscilloscope.
    Fig 5: Terminals Reference Chart
    G02851508Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 6: Checking Signal Between NAVI Control Unit And Ground With Consult-II Or Oscilloscope
    G02851509Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : Replace audio unit.
    2. NG : Replace NAVI control unit.