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DTC 2601: Display Diag. Connect

WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check the vehicle battery condition first.
  • Check any official Honda service website for more service information about the navigation system.
  • Check for B-CAN DTCs and resolve them before troubleshooting.
  • Before you troubleshoot, make sure to follow GENERAL TROUBLESHOOTING INFORMATION  .
  1. Clear the hard error code (see HOW TO CLEAR ERROR HISTORY  ).
  2. Turn the ignition switch to LOCK (0), 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 for poor connections or loose terminals at navigation unit connector B (32P), audio unit connector C (14P), USB adapter unit connector A (14P), and XM receiver connector A (14P).

    Are there connections OK? 

    YES  - Go to step  6.

    NO  - Repair poor connections or loose terminals, and recheck the self-diagnostic mode (see SYSTEM DIAGNOSTIC MODE  ). ■

  6. Turn the ignition switch to LOCK (0).
  7. Disconnect navigation unit connector B (32P) and the navigation display unit 28P connector.
  8. Connect navigation unit connector B (32P) terminals No. 10 and No. 26 with a jumper wire.
    Fig 1: Connecting Navigation Unit Connector B (32P) Terminals No. 10 & No. 26 With Jumper Wire
    G05967159Courtesy of AMERICAN HONDA MOTOR CO., INC.
  9. Check for continuity between navigation display unit 28P connector terminals No. 5 and No. 19.

    Is there continuity? 

    YES  - Go to step  10.

    NO  - Open in the wire between navigation unit and the navigation display unit. ■

    Fig 2: Checking Continuity Between Navigation Display Unit 28P Connector Terminals No. 5 & No. 19
    G05967160Courtesy of AMERICAN HONDA MOTOR CO., INC.
  10. Disconnect the jumper wire.
  11. Disconnect these units connector:
    • Audio unit connector C (14P)
    • USB adapter unit connector A (14P)
    • Rear controller and screen 24P connector (With rear entertainment system)
    • XM receiver connector A (14P)
  12. Check for continuity between navigation display unit 28P connector terminals No. 5 and No. 19, and between terminals No. 3 and No. 17.

    Is there continuity? 

    YES  - Repair short in the wire(s). ■

    NO  - Go to step  13.

    Fig 3: Checking Continuity Between Navigation Display Unit 28P Connector Terminals No. 5, 19, 3 & 17
    G05967161Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Check for continuity between body ground and navigation display unit 28P connector terminals No. 5 and No. 19 individually.

    Is there continuity? 

    YES  - Short to body ground in the wire(s) between the navigation display unit and the navigation unit. ■

    NO  - Go to step  14.

    Fig 4: Checking Continuity Between Body Ground & Navigation Display Unit 28P Connector Terminals No. 5 & No. 19
    G05967162Courtesy of AMERICAN HONDA MOTOR CO., INC.
  14. Reconnect the all connectors, then turn the ignition switch to ON (II).
  15. Go into the Diagnostic Menu and select the Self-Diagnosis Mode in the Select Diagnosis Items menu (see SYSTEM DIAGNOSTIC MODE  ).
  16. Check the System Links.

    Is the Display icon red? 

    YES  - Go to step  17.

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

  17. Turn the ignition switch to LOCK (0).
  18. Disconnect audio unit connector C (14P), and then ignition switch to ON (II).
  19. Go into the Diagnostic Menu and Select the Self-Diagnosis Mode in the Select Diagnosis Items Menu (see SYSTEM DIAGNOSTIC MODE  ).
  20. Check the System Links.

    Is the Display icon red? 

    YES  - Go to step  21.

    NO  - Internal short circuit of audio unit. ■

  21. Turn the ignition switch to LOCK (0).
  22. Reconnect audio unit connector C (14P).
  23. Disconnect XM receiver connector A (14P), and then turn the ignition switch to ON (II).
  24. Go into the Diagnostic Menu and Select the Self-Diagnosis Mode in the Select Diagnosis Items Menu (see SYSTEM DIAGNOSTIC MODE  ).
  25. Check the System Links.

    Is the Display icon red? 

    YES  - Go to step  26.

    NO  - Internal short circuit of XM receiver. ■

  26. Turn the ignition switch to LOCK (0).
  27. Disconnect USB adapter unit connector A (14P), and then ignition switch to ON (II).
  28. Check the System Links.

    Is the Display icon red? 

    YES  -

    NO  - Internal short circuit of USB adapter unit. ■

  29. Turn the ignition switch to LOCK (0).
  30. Disconnect the rear controller and screen 24P connector, and then turn the ignition switch to ON (II).
  31. Check the System Links.

    Is the Display icon red? 

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

    NO  - Internal short circuit of rear controller and screen. ■

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