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Audio driving instructions cannot be heard

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Honda Odyssey, 2003 Honda Odyssey, 2002 Honda Odyssey, 2001 Honda Odyssey, and 2000 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Always check the connectors for poor connections or loose terminals.
  • Before troubleshooting, write down the customer's radio station presets, and get the radio and navigation system anti-theft codes.
  • After troubleshooting, enter the radio and navigation system anti theft codes, and the radio station presets.
  1. Start the engine.
  2. Perform the Car Status test under "Unit Check" in the System Diagnosis Menu (see System Diagnosis Test  ).
    1. Is there vehicle speed pulse signal? 
      1. YES:  Replace the navigation unit.
      2. NO:  Go to step 5.
  3. Push the display unit MENU key, and select "set up".
  4. Check the audio driving instructions volume setting.
    1. Is it set to OFF? 
      1. YES:  Set the volume to an audible level.
      2. NO:  Go to step  7 .
  5. Turn the ignition switch OFF.
  6. Disconnect the navigation unit connector B (16P) and the audio unit 20P connectors.
  7. Check for continuity between body ground and navigation unit connector B (16P) terminals No. 1, No. 3, No. 9, and No. 10 individually.
    1. Is there continuity? 
      1. YES:  If terminal No 3 has continuity to ground, repair the short to body ground in the WHT/BLK wire If terminal No. 1, No. 9, or No. 10 have continuity to ground, repair the affected shielded harness.
      2. NO:  Go to step 8.
      2. Fig 1: Checking Continuity Between Body Ground & Navigation Unit Connector B (16P) Terminals No. 1, No. 3, No. 9, & No. 10 Individually
      G01520461Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Check for continuity between navigation unit connector B (16P) terminal No. 1 and the audio unit 20P connector terminal No. 12.
    1. Is there continuity? 
      1. YES:  Go to step 9.
      2. NO:  There is an open in the circuit between the navigation unit and the audio unit. Replace the affected shielded harness.
      2. Fig 2: Checking Continuity Between Navigation Unit Connector B (16P) Terminal No. 1 & Audio Unit 20P Connector Terminal No. 12
      G01520462Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Check for continuity between navigation unit connector B (16P) terminal No. 9 and the audio unit 20P connector terminal No. 13.
    1. Is there continuity? 
      1. YES:  Go to step 10.
      2. NO:  There is an open in the circuit between the navigation unit and the audio unit. Replace the affected shielded harness.
      2. Fig 3: Checking Continuity Between Navigation Unit Connector B (16P) Terminal No. 9 & Audio Unit 20P Connector Terminal No. 13
      G01520463Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Check for continuity between navigation unit connector B (16P) terminal No. 3 and the audio unit 20P connector terminal No. 14.
    1. Is there continuity? 
      1. YES:  Go to step 11.
      2. NO:  Repair open in the wire between the navigation unit and the audio unit.
      2. Fig 4: Checking Continuity Between Navigation Unit Connector B (16P) Terminal No. 3 & Audio Unit 20P Connector Terminal No. 14
      G01520464Courtesy of AMERICAN HONDA MOTOR CO., INC.
  11. Check for continuity between navigation unit connector B (16P) terminal No. 10 and the audio unit 20P connector terminal No. 11.
    1. Is there continuity? 
      1. YES:  Go to step 12.
      2. NO:  Repair open in the wire between the navigation unit and the audio unit.
      2. Fig 5: Checking Continuity Between Navigation Unit Connector B (16P) Terminal No. 10 & Audio Unit 20P Connector Terminal No. 11
      G01520465Courtesy of AMERICAN HONDA MOTOR CO., INC.
  12. Substitute a known-good audio unit and recheck.
    1. Is the system OK? 
      1. YES:  Replace the audio unit (see DVD PLAYER UNIT REMOVAL/INSTALLATION ).
      2. NO:  Replace the navigation unit (see Navigation Unit Removal/Installation  ).
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