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Manufacturer Code Charts: 2601




Navigation System DTC Troubleshooting: 2601

DTC 2601:

Display Diag: Connect

NOTE:

- Check the vehicle battery condition first Battery Test.
- This navigation DTC sets when a mechanical malfunction in the navigation display is detected. 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 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 the General Troubleshooting Information How to Troubleshoot the Navigation System.

1. Clear the hard error code.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Go into the System Diagnostic Mode, and select the Self-Diagnosis 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 these connectors.

- Navigation unit connector B (32P)
- AcuraLink control unit connector A (32P)
- USB adapter control unit connector A (14P)
- HandsFreeLink control unit 28P connector
- XM receiver connector A (14P)

Are the connections OK?

YES -

Go to step 6.

NO -

Repair poor connections or loose terminals, and recheck the Self-Diagnosis Mode.

6. Turn the ignition switch to LOCK (0).

7. Disconnect navigation unit connector B (32P) and the navigation display unit 20P connector.

8. Connect navigation unit connector B (32P) terminals No. 10 and No. 26 with a jumper wire.






9. Check for continuity between navigation display unit 20P connector terminals No. 5 and No. 15.





Is there continuity?

YES -

Go to step 10.

NO -

There is an open in the wire(s) between the navigation unit and the navigation display unit. Replace the affected shielded harness.

10. Disconnect the jumper wire.

11. Disconnect these items:

- AcuraLink control unit connector A (32P)
- USB adapter control unit connector A (14P)
- HandsFreeLink control unit 28P connector
- XM receiver connector A (14P)

12. Check for continuity between navigation display unit 20P connector terminals No. 3 and No. 13, and terminals No. 5 and No. 15.





Is there continuity?

YES -

There is a short in the wire(s). Replace the affected shielded harness.

NO -

Go to step 13.

13. Check for continuity between body ground and navigation display unit 20P connector terminals No. 5 and No. 15 individually.





Is there continuity?

YES -

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

NO -

Go to step 14.

14. Check for continuity between navigation display unit 20P connector terminals No. 5 and No. 15 to No. 14.





Is there continuity?

YES -

There is a short in the wire(s) between the navigation display unit and the navigation unit. Replace the affected shielded harness.

NO -

Go to step 15.

15. Reconnect the all connectors, then turn the ignition switch to ON (II).

16. Go into the System Diagnostic Mode, and select the Self-Diagnosis Mode.

17. Check the System Links.

Is the Display icon red?

YES -

Go to step 18.

NO -

Intermittent failure, the system is OK at this time.

18. Turn the ignition switch to LOCK (0).

19. Disconnect audio unit connector C (14P), and then turn the ignition switch to ON (II).

20. Go into the System Diagnostic Mode and Select the Self-Diagnosis Mode.

21. Check the System Links.

Is the Display icon red?

YES -

Go to step 22.

NO -

Internal short circuit of in the audio unit. Replace the audio unit Audio Unit Removal / Installation.

22. Turn the ignition switch to LOCK (0).

23. Connect the audio unit connector C (14P).

24. Disconnect the AcuraLink control unit connector A (32P) or XM receiver connector A (14P), and then turn the ignition switch to ON (II).

25. Go into the System Diagnostic Mode, and Select the Self-Diagnosis Mode.

26. Check the System Links.

Is the Display icon red?

YES -

Go to step 27.

NO -

Replace the AcuraLink control unit (XM receiver) AcuraLink Control Unit (XM Receiver) Removal/Installation, or the XM receiver unit Auxiliary Jack Assembly Replacement.

27. Turn the ignition switch to LOCK (0).

28. Connect AcuraLink control unit connector A (32P) or XM receiver unit connector A (14P).

29. Disconnect USB adapter control unit connector A (14P), and then turn the ignition switch to ON (II).

30. Go into the System Diagnostic Mode, and Select the Self-Diagnosis Mode.

31. Check the System Links.

Is the Display icon red?

YES -

Go to step 32.

NO -

Replace the USB adapter control unit USB Adapter Control Unit Replacement.

32. Turn the ignition switch to LOCK (0).

33. Connect USB adapter control unit connector A (14P).

34. Disconnect the HandsFreeLink control unit 28P connector, and then turn the ignition switch to ON (II).

35. Go into the System Diagnostic Mode, and Select the Self-Diagnosis Mode.

36. Check the System Links.

Is the Display icon red?

YES -

Replace the navigation display unit Service and Repair.

NO -

Replace the HandsFreeLink control unit Service and Repair.