Honda Accord: Symptom Troubleshooting

The HFL digits do not go away from the audio-HVAC subdisplay or the audio HVAC display after pressing the HFL BACK button

1. Connect the HDS to the DLC (see page 23-252).

2. Clear the DTCs with the HDS.

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

4. Check for DTCs with the HDS.

Are there any DTCs indicated? YES

-Repair the indicated DTCs.

NO

-Go to step 5.

5. Turn the ignition to LOCK (0).

6. Substitute a known-good HandsFreeLink control unit (see page 23-281).

7. Turn the ignition switch to ON (II), and recheck the audio-HVAC subdisplayor the audio-HVAC display.

Are the messages cleared? YES

-Replace the original HandsFreeLink control unit (see page 23-281 ) . NO

-Replace the gauge control module (see page 22-351 ).

The HFL system does not recognize all voice prompts

1. Connect the HDS to the DLC (see page 23-252).

2. Clear the DTCs with the HDS.

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

4. Check for DTCs with the HDS.

Are there any DTCs indicated? YES

-Repair the indicated DTCs.

NO

-Go to step 5.

5. Check to see if you can duplicate the customer complaint.

Can you duplicate the complaint? YES

-Go to step 6.

NO

-The system is OK at this time. Ask the customer to demonstrate the problem.

6. Check if the navigation system can recognize voice prompts.

Can the voice prompts be recognized? YES

-Go to step 7.

NO

-Refer to the navigation system troubleshooting (see page 23-217).

7. Pair the customer's phone to a known-good vehicle, and try to duplicate the problem.

Can you duplicate the problem? YES

-Call the HFL support desk at 888-528-7876, and  inquire if there are any known issues for the problem.

If there are no known issues, explain to the customer's this is a system characteristic and cannot be improved at this time.

NO

-Substitute a known-good front HFL-ANC microphone (see page 23-280). If the problems still present, replace the HandsFreeLink control unit (see page 23-281). If the problem goes away, replace the original front HFL-ANC microphone.

The HFL system is locked and the pass code has been lost or forgotten

1. Connect the HDS to the DLC.

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

3. From the Body Electrical menu, select HF LINK/TEL.

4. Select Miscellaneous Tests, then select Pass code reset.

5. Follow the HDS prompts to reset the pass code.

The HFL messages cannot be heard or are weak

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

2. Check that the audio system is operating normally and the speaker sound levels from different audio sources (AM/FM, XM, CD, navigation, etc.).

Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources? YES

-Go to step 3.

NO

-Refer to the audio system Symptom Troubleshooting.

3. Connect the HDS to the DLC (see page 23-252).

4. Clear the DTCs with the HDS.

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

6. Check for DTCs with the HDS.

Are there any DTCs indicated? YES

-Repair the indicated DTCs.

NO

-Go to step 7.

7. Press the HFL talk button.

Does the audio system mute when HFL messages are being played? YES

-Go to step 8.

NO

-Go to step 13.

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

9. Disconnect audio unit connector B (20P) and the HandsFreeLink control unit 28P connector.

10. Check for continuity between HandsFreeLink control unit 28P connector terminals No. 11 and No. 25 and audio unit connector B (20P) terminals No. 19 and No. 9 respectively.

HANDSFREELINK CONTROL UNIT 28P CONNECTOR

Wire side of female terminals

AUDIO UNIT CONNECTOR B (20F)

Wire side of female terminals

Is there continuity? YES-

Go to step 11.

NO

-There is an open in the wire(s) between the HandsFreeLink control unit and the audio unit.

Replace the affected shielded harness.

11. Check for continuity between body ground and audio unit connector B (20P) terminals No. 19 and No. 9 individually.

AUDIO UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity? YES

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

NO

-Go to step 12.

12. Check for continuity between the terminals of audio unit connector B (20P) according to the table.

AUDIO UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity? YES

-There is a short in the wire(s) between the HandsFreeLink control unit and the audio unit.

Replace the affected shielded harness.

NO

-Substitute a known-good HandsFreeLink control unit (see page 23-281), and recheck. If the symptom  goes away, replace the original HandsFreeLink control unit. If the symptom does not go away, replace the audio unit (see page 23-114).

13. Press the HFL talk button.

Does the audio-HVAC subdisplay the HFL menu and the subdisplay show HandsFreeLink when pressing the HFL talk button? YES

-Go to step 14.

NO

-Go to step 18.

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

15. Disconnect the HandsFreeLink control unit 28P connector and audio unit connector B (20P).

16. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 3 and audio unit connector B (20P) terminal No. 20.

HANDSFREELINK CONTROL UNIT 28P CONNECTOR

Wire side of female terminals

AUDIO UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity? YES

-Go to step 16. NO

-Repair an open in the wire between the HandsFreeLink control unit and the audio unit.H 17. Check for continuity between body ground and HandsFreeLink control unit 28P connector terminal No. 3.

HANDSFREELINK CONTROL UNIT 28P CONNECTOR

Wire side of female terminals

Is there continuity? YES

-Repair a short to body ground in the wire between the HandsFreeLink control unit and the audio unit.

NO

-Substitute a known-good HandsFreeLink control unit (see page 23-281), and recheck. If symptom goes away, replace the original HandsFreeLink control unit.

If the symptom does not go away, replace the audio unit (see page 23-114).

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

19. Disconnect t h e HandsFreeLink control unit 28P connector a n d t h e HFL-voice control switch 5P connector.

20. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 2 a n d HFL-voice control switch 5P connectorterminal No. 3.

HANDSFREELINK CONTROL UNIT 28P CONNECTOR

Wire side of female terminals

HFL STRG S W (BLU)

HFL-VOICE CONTROL SWITCH 5P CONNECTOR

Wire side of female terminals

Is there continuity? YES

-Do the HFL Switch Test (see page 23-279). j NO

-Repair an open in the wire between the HandsFreeLink control unit and the HFL-voice control switch.