Symptom Troubleshooting

Symptom Troubleshooting: Bluetooth audio does not work

Bluetooth audio does not work (with navigation)

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

- Check if the cell phone with Bluetooth audio functions normally.

- Make sure the cell phone is properly paired.

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 unit, and press AUX button to select Bluetooth audio source.

Does it change to Bluetooth Audio source?
YES - Go to step 3.

NO - Substitute a known-good audio-navigation unit (including the HDD), Audio-Navigation Unit Removal/Installation (With Navigation) and recheck. If the symptom/indication goes away, replace the original audio-navigation unit.


3. 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 4.


4. Make sure the Bluetooth audio device is compatible (handsfreelink.com), and that it is configured correctly.

5. Pair and check the Bluetooth audio device function on a known-good vehicle equipped with Bluetooth audio.

Is the Bluetooth device normal?
YES - Go to step 6.

NO - Defective Bluetooth device or is not compatible.


6. Connect the HDS to the DLC. Check for HFL DTCs.

Are there any DTCs indicated?
YES - Go to HFL DTC troubleshooting. B1775

NO - Go to step 7.


7. Check for the navigation system hard error codes. How to Troubleshoot the Navigation System (With Navigation)

Are there any DTC's related to the Display or XM systems?
YES - Go to step 8.

NO - Go to step 11.


8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

9. Disconnect audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector.

10. 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 - Substitute a known-good HandsFreeLink control unit, Service and Repair and recheck. If the symptom/indication goes away, replace the original HandsFreeLink control unit.

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






11. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

12. 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)

- Navigation display unit 32P connector

- HandsFreeLink control unit 28P connector

13. Check for continuity between the HandsFreeLink control unit 28P connector and body ground according to the table.





Is there continuity?
YES - There is a short to body ground in the wire(s) between the audio-navigation unit, the AcuraLink control unit (XM receiver) or XM receiver, the navigation display unit, and the HandsFreeLink control unit. Replace the affected shielded harness.

NO - Go to step 14.






14. 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 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. Check for continuity between the terminals of the HandsFreeLink control unit 28P connector according to the table.





Is there continuity?
YES - There is a short in the wires between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shield harness.

NO - Go to step 16.






16. Reconnect the audio-navigation unit connector C (14P) and the HandsFreeLink control unit 28P connector.

17. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

18. Check if the Bluetooth audio device can be played.

Does the Bluetooth audio play?
YES - Intermittent failure, the system is OK at this time. Check for loose or poor connections at the AcuraLink control unit (XM receiver), the XM receiver, or the navigation display unit.

NO - Go to step 19.


19. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

20. Remove the center console panel. Center Console Panel Removal/Installation

21. Disconnect the HandsFreeLink control unit 28P connector. Service and Repair

22. Reconnect AcuraLink control unit (XM receiver) connector A (32P) or XM receiver A (14P), the navigation display unit 32P connector, and the HandsFreeLink control unit 28P connector.

23. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

24. 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.

NO - Substitute a known-good audio-navigation unit (including the HDD), Audio-Navigation Unit Removal/Installation (With Navigation) and recheck. If the symptom/indication goes away, replace the original audio-navigation unit.