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), 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 Mic icon red?

YES -

Go to step 5.

NO -

Go to step 10.

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

6. Check for poor connections or loose terminals at the HandsFreeLink control unit 28P connector and front HFL-navigation-ANC/active sound control microphone 7P connector.

Are the connections OK?

YES -

Go to step 7.

NO -

Repair poor connections or loose terminals.�

7. Connect the HDS to the DLC.

8. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

9. Check for DTCs with the HDS.

Is DTC B1775 or B1776 indicated?

YES -

Troubleshoot the indicated DTC.�

NO -

Go to step 13.

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

11. Select the Mic in the System Links.

12. Press the TALK button on the steering wheel switch, then check the Mic Level.

Is the microphone level OK?

YES -

Intermittent failure, the system is OK at this time.�

NO -

Replace the front HFL-navigation-ANC/active sound control microphone Front HFL-Navigation-ANC/Active Sound Control Microphone Removal/Installation.�

13. Measure the voltage between body ground and front HFL-navigation-ANC/active sound control microphone 7P connector terminals No. 6 and No. 7 individually.





Is there battery voltage?

YES -

Go to step 14.

NO -

Repair an open in the wire(s) between the No. 15 (10 A) fuse in the under-hood fuse/relay box and the front HFL-navigation-ANC/active sound control microphone, or the No. 18 (10 A) fuse in the driver's under-dash fuse/relay box and the front HFL-navigation-ANC/active sound control microphone.�

14. Measure the voltage between front HFL-navigation-ANC/active sound control microphone 7P connector terminal No. 1 and body ground.





Is there less than 0.2 V?

YES -

Replace the front HFL-navigation-ANC/active sound control microphone Front HFL-Navigation-ANC/Active Sound Control Microphone Removal/Installation.�

NO -

Repair open or high resistance in the wire between the front HFL-navigation-ANC/active sound control microphone and body ground (G402).�