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), or press the engine start/stop button to select the OFF mode, then back to ON (II), or press the engine start/stop button to select the ON mode.

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. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Disconnect audio-navigation unit connector B (24P) and the navigation display unit 28P connector.

7. Connect audio-navigation unit connector B (24P) terminals No. 18 and No. 19 with a jumper wire.






8. Check for continuity between navigation display unit 28P connector terminals No. 4 and No. 5.





Is there continuity?

YES -

Go to step 9.

NO -

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

9. Remove the jumper wire.

10. Check for continuity between body ground and navigation display unit 28P connector terminals No. 4 and No. 5 individually.





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 11.

11. Check for continuity between the terminals of the navigation display unit 28P connector according to the table.









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 -

Substitute a known-good navigation display unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original navigation display unit Service and Repair. If the code continues to reset intermittently, replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.