Manufacturer Code Charts: 2707
Navigation System DTC Troubleshooting: 2707
DTC 2707:
MIC Diag
NOTE:
- Check the vehicle battery condition first Testing and Inspection.
- 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.
- Check for any B-CAN DTCs and repair them first.
- 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 Diagnostic Menu and select the Self-Diagnosis Mode in the Select Diagnosis Items menu Navigation System Diagnostic Mode.
4. Check the System Links.
Is the Mic icon red?
YES -
Go to step 5.
NO -
Go to step 8.
5. Turn the ignition switch to LOCK (0).
6. Check for poor connections or loose terminals at HandsFreeLink control unit 28P connector, front HFL-navigation-ANC microphone 7P connector, and navigation unit connector D (5P).
Are the connections OK?
YES -
Go to step 7.
NO -
Repair poor connections or loose terminals.�
7. Check for DTCs with the HDS.
Is DTC B1775 or B1776 indicated?
YES -
Troubleshoot the indicated DTC.�
NO -
Go to step 10.
8. Select the Mic in the System Links.
9. Select the navigation TALK button and 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 microphone Service and Repair.�
10. 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 -
- '09 model: Go to step 11.
- '10-11 models: Go to step 12.
NO -
Repair an open in the wire(s) between the No. 17 (20 A) fuse in the under-hood fuse/relay box, the No. 35 (10 A) fuse in the under-dash fuse/ relay box and the front HFL-navigation-ANC microphone.�
11. Measure the voltage between front HFL-navigation-ANC microphone 7P connector terminal No. 1 and body ground.
Is there less than 0.2 V?
YES -
Replace the front HFL-navigation-ANC microphone Service and Repair.�
NO -
Repair an open or high resistance in the wire between the front HFL-navigation-ANC microphone and body ground (G701).�
12. Turn the ignition switch to LOCK (0).
13. Check for continuity between front HFL-navigation-ANC microphone 7P connector terminal No. 2 and body ground.
Is there continuity?
YES -
Replace the front HFL-navigation-ANC microphone Service and Repair.�
NO -
Go to step 14.
14. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 14 and body ground.
Is there continuity?
YES -
There is an open in the wire between the front HFL-navigation-ANC microphone and the HandsFreeLink control unit. Replace the affected shielded harness.�
NO -
Go to step 15.
15. Disconnect the HandsFreeLink control unit 28P connector.
16. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 28 and body ground.
Is there continuity?
YES -
Replace the HandsFreeLink control unit Service and Repair. �
NO -
Go to step 17.
17. Check for continuity between navigation unit connector C (16P) terminal No. 16 and body ground.
Is there continuity?
YES -
There is an open in the wire between the navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�
NO -
Go to step 18.
18. Check for continuity between navigation unit connector A (8P) terminal No. 4 and body ground.
Is there continuity?
YES -
Replace the navigation unit Service and Repair.�
NO -
Repair an open in the wire between navigation unit connector A (8P) terminal No. 4 and body ground (G503).�