With Navigation
HandsFreeLink System Symptom Troubleshooting - No sound when Bluetooth audio is used
No sound when Bluetooth audio is used (with navigation)
NOTE:
- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Set the fader and balance positions to the center.
- Check if the cell phone with Bluetooth audio functions normally.
- Make sure the cell phone is properly paired.
- Make sure the client's phone is compatible with the Acura HFL system. See www.acura.com/handsfreelink for more information.
1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
2. Turn on the audio-navigation unit, and check for sound in each mode (AM/FM, XM, and CD).
Is the sound normal?
YES -
Go to step 3.
NO -
Go to Sound Quality Diagnosis Audio System Sound Quality Diagnosis or No sound is heard from the speaker(s) (display is normal) troubleshooting No Sound Is Heard From The Speaker(s) (Display Is Normal) (With Navigation).�
3. Press the USB/AUX button, and check if it changes to Bluetooth audio source.
Does the audio system change to Bluetooth audio source?
YES -
Go to step 4.
NO -
Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.�
4. Check if it is connected when switching to Bluetooth audio screen by pressing the USB/AUX button.
Is NO CONNECTION displayed?
YES -
Go to Bluetooth cell phone cannot be paired troubleshooting Symptom Troubleshooting.�
NO -
Go to step 5.
5. Check if the Bluetooth audio device can be played.
Does the Bluetooth audio play?
YES -
Intermittent failure, the audio-navigation unit is OK at this time.�
NO -
Go to step 6.
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), or press the engine start/stop button to select the OFF mode and then the ON mode.
9. Check for DTCs.
Is there any DTCs indicated?
YES -
Repair the indicated DTCs.�
NO -
Go to step 10.
10. Turn on the audio-navigation unit, and check for XM radio sound.
Is the sound is normal?
YES -
Go to step 11.
NO -
Go to step 14.
11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
12. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector.
13. Check for continuity between audio unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table.
Is there continuity?
YES -
Substitute a known-good HandsFreeLink control unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit Service and Repair.�
NO -
There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�
14. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
15. Disconnect these items:
- Audio-navigation unit connector C (14P)
- AcuraLink control unit (XM receiver) connector A (32P) (USA models)
- XM receiver connector A (14P) (Canada models)
- HandsFreeLink control unit 28P connector
16. Check for continuity between body ground and the HandsFreeLink control unit 28P connector according to the table.
Is there continuity?
YES -
There is a short to body ground in the wire(s) between the audio-navigation unit, then AcuraLink control unit (XM receiver) or XM receiver, and the HandsFreeLink control unit. Replace the affected shielded harness.�
NO -
Go to step 17.
17. Check for continuity between audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector according to the table.
Is there continuity?
YES -
Go to step 18.
NO -
There is an open in the wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�
18. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table.
Is there continuity between any of the terminals?
YES -
There is a short in the wires between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�
NO -
Go to step 19.
19. Reconnect audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector.
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
21. Check if the Bluetooth audio device can be played.
Does the Bluetooth audio play?
YES -
There is an internal malfunction where the connector for either the AcuraLink control unit (XM receiver) (USA models) or the XM receiver (Canada models) is connected.�
NO -
Go to step 22.
22. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
23. Disconnect the HandsFreeLink control unit 28P connector.
24. Reconnect AcuraLink control unit (XM receiver) connector A (32P) (USA models) or XM receiver connector A (14P) (Canada models).
25. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
26. Check the operation of the reconnected unit.
Is the system normal?
YES -
Substitute a known-good HandsFreeLink control unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit Service and Repair.�
NO -
Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.�