Manufacturer Code Charts: 2707

Navigation System DTC Troubleshooting: 2707

DTC 2707:

MIC Diag

NOTE:

- Check the vehicle battery condition first Battery Test.
- This navigation DTC sets when a problem is detected in the microphone circuit.
- Check any official Honda service website for more service information about the navigation system.
- 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 Mic icon red?

YES -

Go to step 5.

NO -

Go to step 9.

5. Check for the hard error code.

Is DTC 2705 indicated?

YES -

Do the DTC 2705 troubleshooting 2705.

NO -

Go to step 6.

6. Go into the System Diagnostic Mode, and use the Mic/STRG SW in the Functional Setup.

Is DTC B1775 or B1776 indicated?

YES -

Troubleshoot the indicated DTC(s).

NO -

Go to step 7.

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

8. Check for poor connections or loose terminals at these items:

- HandsFreeLink control unit 32P connector
- Front HFL-navigation-ANC microphone 7P connector
- Audio-Navigation unit connector B (28P)

Are the connections OK?

YES -

Go to step 9.

NO -

Repair poor connections or loose terminals, and recheck.

9. Go into the System Diagnostic Mode, and use the Mic/STRG SW in the Functional Setup.

10. Check the Mic level by pressing the TALK button on the steering wheel, then say "Testing" in front of the microphone.

Is the microphone level OK?

YES -

Intermittent failure, the system is OK at this time.

NO -

Go to step 11.

11. Turn the ignition switch to ON (II).

12. Measure the voltage between body ground and front HFL-navigation-ANC microphone 7P connector terminals No. 6 and No. 7 individually.





Is there battery voltage?

YES -

Replace the front HFL-navigation-ANC microphone Front HFL-Navigation-ANC Microphone Removal/Installation.

NO -

If the +B wire does not have voltage, repair an open in the wire between the under-hood fuse/relay box and the front HFL-navigation-ANC microphone. If the ACC wire does not have voltage, repair an open in the wire between the under-dash fuse/relay box and the front HFL-navigation-ANC microphone.