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. Reading and Clearing Diagnostic Trouble Codes

1. Clear the hard error code. Reading and Clearing Diagnostic Trouble Codes

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 11.


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

6. Check for poor connections or loose terminals at the HandsFreeLink control unit 28P connector, the front HFL-navigation-ANC/active sound control 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. Connect the HDS to the DLC. Initial Inspection and Diagnostic Overview

8. Clear the DTCs with the HDS.

9. Turn the ignition switch to LOCK (0), and then back to ON (II).

10. Check for DTCs.

Are there any DTCs indicated?
YES - Repair the indicated DTCs.

NO - Go to step 13.


11. Select the Mic in the System Links.

12. Press the HFL TALK button on the steering wheel switch, 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 front HFL-navigation-ANC/active sound control microphone. Service and Repair


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

14. Disconnect the front HFL-navigation-ANC/active sound control microphone 7P connector.

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

16. 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 17.

NO - Repair an open in the wire(s).






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

18. Reconnect the front HFL-navigation-ANC/active sound control microphone 7P connector.

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

20. 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 - Go to step 21.

NO - Repair an open or high resistance in the wire between the front HFL-navigation-ANC/active sound control microphone and body ground (G501).






21. Disconnect navigation unit connector C (16P) and the HandsFreeLink control unit 28P connector.

22. Check for continuity between body ground and navigation unit connector C (16P) terminals No. 8 and No. 16 individually.

Is there continuity?
YES - There is a short in the wire(s) between the navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.

NO - Go to step 23.






23. Check for continuity between the terminals of navigation unit connector C (16P) according to the table.





Is there continuity between any of the terminals?
YES - There is a short in the wire(s) between the navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.

NO - Go to step 24.






24. Connect navigation unit connector C (16P) terminals No. 8 and No. 16 with a jumper wire.






25. Check for continuity between HandsFreeLink control unit 28P connector terminals No. 27 and No. 28.

Is there continuity?
YES - Replace the navigation unit. Service and Repair

NO - There is an open in the wire(s) between the navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.