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DTC 2601: Display Diag: Connect

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check the vehicle battery condition first (see BATTERY TEST ).
  • Check any official Honda service website for more service information about the navigation system.
  • This DTCs sets when a GA-NET bus problem is detected (open or short), or an internal ECU BUS circuit problem is detected (open or short).
  • Check for B-CAN DTCs and resolve them before troubleshooting.
  • Before you troubleshoot, make sure to follow the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION  ).
  1. Clear the hard error code (see HOW TO CLEAR ERROR HISTORY  ).
  2. Turn the ignition switch to LOCK (0), and then back to ON (II).
  3. Go into the Diagnostic Menu, and select the Self-Diagnosis Mode in the Select Diagnosis Items menu (see SYSTEM DIAGNOSTIC MODE  ).
  4. Check the System Links.

    Is the Display icon red? 

    YES  -Go to step 5.

    NO  -Intermittent failure, the system is OK at this time.

  5. Check that the HFL system is operating properly.

    Does the HFL work properly OK? 

    YES  -Go to step 6.

    NO  -Go to step  10.

  6. Turn the ignition switch to LOCK (0).
  7. Disconnect these items:
    • Audio-Navigation unit connector B (24P)
    • Navigation display unit 28P connector
    • HandsFreeLink control unit 28P connector
  8. Connect audio-navigation unit connector B (24P) terminals No. 18 and No. 19 with a jumper wire.
    Fig 1: Connecting Connector B (24P) Terminals No. 18 And No. 19 With Jumper Wire
    G08058150Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Check for continuity between navigation display unit 28P connector terminals No. 4 and No. 5.
    Fig 2: Checking Continuity Between 28P Connector Terminals No. 4 And No. 5
    G08058151Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

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

    NO  -There is an open in the wire(s) between the audio-navigation unit and the navigation display unit. Replace the affected shielded harness.

  10. Turn the ignition switch to LOCK (0).
  11. Disconnect the HandsFreeLink control unit 28P connector.
  12. Turn the ignition switch to ON (II).
  13. Clear the hard error code (see HOW TO CLEAR ERROR HISTORY  ).
  14. Go into the Diagnostic Menu, and Select the Self-Diagnosis Mode in the Select Diagnosis Items Menu (see SYSTEM DIAGNOSTIC MODE  ).
  15. Check the System Links.

    Is the Display icon red? 

    YES  -Go to step 16.

    NO  -Replace the HandsFreeLink control unit (see HANDSFREELINK CONTROL UNIT REMOVAL/INSTALLATION ).

  16. Turn the ignition switch to LOCK (0).
  17. Disconnect audio-navigation unit connector B (24P) and the navigation display unit 28P connector.
  18. Check for continuity between body ground and navigation display unit 28P connector terminals No. 4 and No. 5 individually.
    Fig 3: Checking Continuity Between Body Ground And 28P Connector Terminals
    G08058152Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    YES  -There is a short to body ground in the wire(s) between the navigation display unit and the audio-navigation unit. Replace the affected shielded harness.

    NO  -Go to step 19.

  19. Check for continuity between the terminals of navigation display unit 28P connector according to the table.
    From terminal To terminals
    No. 4 (RED) No. 5 (GRN), No. 18 (BRN)
    No. 5 (GRN) No. 18 (BRN)
    Fig 4: Identifying Navigation Display Unit 28P Connector
    G08058153Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity between any of the terminals? 

    YES  -There is a short in wires between the navigation display unit and the audio-navigation unit. Replace the affected shielded harness.

    NO  -Go to step 20.

  20. Connect audio-navigation unit connector B (24P) terminals No. 18 and No. 19 with a jumper wire.
    Fig 5: Connecting Connector B (24P) Terminals No. 18 And No. 19 With Jumper Wire
    G08058154Courtesy of AMERICAN HONDA MOTOR CO., INC.
  21. Check for continuity between navigation display unit 28P connector terminals No. 4 and No. 5.
    Fig 6: Checking Continuity Between 28P Connector Terminals No. 4 And No. 5
    G08058155Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

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

    NO  -There is an open in the wire(s) between the audio-navigation unit and the navigation display unit. Replace the affected shielded harness.

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