Manufacturer Code Charts: 2707

Navigation System DTC Troubleshooting: 2707

DTC 2707: Mic Diag

NOTE:

- Check the vehicle battery condition first. Testing and Inspection

- Before you troubleshoot, make sure to follow the general troubleshooting information. How to Troubleshoot the Navigation System

1. Clear the hard error code. How to Troubleshoot the Navigation System

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. Select 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 the HandsFreeLink control unit 28P connector, the roof console 28P connector, and navigation control 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 - Troubleshooting the indicated DTC.

NO - Go to step 10.


8. Select the Mic in the System Links.

9. Press the HFL TALK button on the steering wheel, then check the Mic Level. Navigation System Diagnostic Mode

Is the microphone level OK?
YES - Intermittent failure, the system is OK at this time.

NO - Replace the HFL-navigation microphone. Service and Repair


10. Measure the voltage between body ground and the roof console 28P connector terminals No. 4 and No. 28 individually.

Is there battery voltage?
YES - Go to step 11.

NO - Repair open in the wire(s).






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

12. Check for continuity between the roof console 28P connector terminal No. 13 and body ground.

Is there continuity?
YES - Go to step 13.

NO - Repair open in the ground wire to G601.






13. Disconnect the roof console 28P connector and the HandsFreeLink control unit 28P connector.

14. Check for continuity between HandsFreeLink control unit 28P connector terminals No. 13 and No. 14 to terminal No. 12.

Is there continuity?
YES - There is a short in the harness. Replace the affected shielded harness.

NO - Replace the HFL/navigation microphone. Service and Repair