Manufacturer Code Charts: 2705

Navigation System DTC Troubleshooting: 2705

DTC 2705:

HFL Diag

NOTE

- Check the vehicle battery condition first.
- This navigation DTC sets when a problem detected in the connecting lines (open/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.

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.

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. Turn the ignition switch to LOCK (0).

11. Remove the audio-navigation unit Audio-Navigation Unit Removal/Installation, and disconnect audio-navigation unit connector B (24P).

NOTE:

- Eject all the discs before removing the audio-navigation unit to prevent damaging the CD player's load mechanism.
- Remove the PC card before removing the audio-navigation unit.

12. Disconnect the HandsFreeLink control unit 28P connector.

13. Connect HandsFreeLink control unit 28P connector terminals No. 8 and No. 9 with a jumper wire, then connect terminals No. 22 and No. 23 with a jumper wire.






14. Check for continuity between audio-navigation unit connector B (24P) terminals No. 1 and No. 13, and between terminals No. 2 and No. 14.





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 wires.

16. Check for continuity between the terminals of 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 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.