Manufacturer Code Charts: 2705

Navigation System DTC Troubleshooting: 2705

DTC 2705:

HFL Diag

NOTE

- Check the vehicle battery condition first Testing and Inspection.
- This navigation DTC sets when a problem is detected in the COMM BUS (open or short) or in the HandsFreeLink control unit .
- 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 System Diagnostic Mode, and select the Self-Diagnosis Mode in the Select Diagnosis items menu Navigation System Diagnostic Mode.

4. Check the System Links.

Is the HFL icon red?

YES -

Go to step 5.

NO -

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

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

6. Connect the HDS to the DLC Initial Inspection and Diagnostic Overview.

7. Clear the DTCs with the HDS.

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

9. Check for DTCs with the HDS.

Are there any HFL DTCs indicated?

YES -

Do the HFL DTC troubleshooting.�

NO -

Go to step 10.

10. Do the B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A, and check the communication with the HandsFreeLink control unit.

Does the HandsFreeLink control unit control unit communicate with the HDS?

YES -

Go to step 11.

NO -

Go to the HandsFreeLink control unit troubleshooting.�

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

12. Disconnect the HandsFreeLink control unit 28P connector and the audio-navigation unit connector B (24P).

13. Connect HandsFreeLink control unit 28P connector terminals No. 6 and No. 7 with a jumper wire, then connect terminals No. 20 and No. 21 with a jumper wire.






14. Check for continuity between audio-navigation unit connector B (24P) terminals No. 11 and No. 23, and between terminals No. 12 and No. 24.





Is there continuity?

YES -

Go to step 15.

NO -

There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�

15. Disconnect the jumper wire.

16. Check for continuity between the terminals of the audio-navigation unit connector B (24P) according to the table.









Is there continuity?

YES -

There is a short in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�

NO -

Go to step 17.

17. Check for continuity between body ground and the audio-navigation unit connector B (24P) according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�

NO -

Replace the HandsFreeLink control unit Service and Repair.�