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Home >> Acura >> 2007 >> TSX Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1 (Navigation System) >> Symptom Troubleshooting >> Voice guidance cannot be heard, is broken up, or there is static >> Diagnostic Test: Navi System Link
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Diagnostic Test: Navi System Link

WARNING: This page is about a different car, the 2005 Acura TSX and 2004 Acura TSX. 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 audio presets, and get the audio and navigation system anti-theft codes.
  • After troubleshooting, enter the audio and navigation system anti-theft codes, and the audio presets.
  1. Press the display unit SET-UP button.
  2. Check the volume setting for the navigation system.

    Is it set to OFF? 

    YES  -Set the volume to an audible level.

    NO  -Go to step 3.

  3. Check the radio operation.

    Can you hear the radio? 

    YES  -Go to step 4.

    NO  -Troubleshoot the audio system.

  4. Go into the diagnostic mode and use the "NAVI SYSTEM LINK " diagnostic (see <-- page 22-535 -->) to check the radio.

    Is the "Radio" icon red? 

    YES  -Troubleshoot the audio system.

    NO  -Go to step 5.

  5. Turn the ignition switch to LOCK (0).
  6. Disconnect the navigation unit connector B (14P) and the audio unit connector A (20P).
  7. Check for continuity between body ground and navigation unit connector B (14P) terminals No. 5, No. 12 individually.
    Fig 1: Checking Continuity Between Body Ground And Navigation Unit Connector B (14P) Terminals 5, 12
    G05489337

    Is there continuity? 

    YES  -Repair short to ground in the harness between the navigation and audio units. Replace the affected shielded harness.

    NO  -Go to step 8.

  8. Check for continuity between navigation unit connector B (14P) terminal No. 11 and terminals No. 5 and No. 12 individually.
    Fig 2: Checking Continuity Between Navigation Unit Connector B (14P) Terminal 11 And Terminals 5 And 12
    G05489338

    Is there continuity? 

    YES  -Repair short to ground in the harness between the navigation and audio units. Replace the affected shielded harness.

    NO  -Go to step 9.

  9. Check for continuity between navigation unit connector B (14P) terminal No. 5 and the audio unit connector A (20P) terminal No. 13.
    Fig 3: Checking Continuity Between Navigation Unit Connector B (14P) Terminal 5 And Audio Unit Connector A (20P) Terminal 13
    G05489339

    Is there continuity? 

    YES  -Go to step 10.

    NO  -There is an open in the circuit between the navigation unit and audio unit. Check for poor connections or loose terminals at the audio and navigation units. If a poor connection or loose terminal is found, replace the affected shielded harness.

  10. Check for continuity between navigation unit connector B (14P) terminal No. 12 and the audio unit connector A (20P) terminal No. 12.
    Fig 4: Checking Continuity Between Navigation Unit Connector B (14P) Terminal 12 And Audio Unit Connector A (20P) Terminal 12
    G05489340

    Is there continuity? 

    YES  -Go to step 11.

    NO  -There is an open in the circuit between the navigation unit and audio unit. Check for poor connections or loose terminals at the audio and navigation units. If a poor connection or loose terminal is found, replace the affected shielded harness.

  11. Substitute a known-good navigation unit, and recheck.

    Is the system OK? 

    YES  -Replace the original navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION  ).

    NO  -Replace the audio unit (see WITHOUT NAVIGATION ).

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