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Home >> Acura >> 2012 >> ZDX V6-3.7L >> Repair and Diagnosis >> Accessories and Optional Equipment >> Cellular Phone >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Bluetooth Audio Does Not Work (With Navigation)

Bluetooth Audio Does Not Work (With Navigation)




HandsFreeLink System Symptom Troubleshooting - Bluetooth audio does not work

Bluetooth audio does not work (with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- 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.
- Check the connectors for poor connections or loose terminals.

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 system, and press the USB/AUX button to select Bluetooth audio source.

Does the audio system change to Bluetooth audio source?

YES -

Go to step 3.

NO -

Go to step 5.

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

Is the Bluetooth device normal?

YES -

Check on-line at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the cell phone is compatible with the HFL system and that there are no known issues.

NO -

The Bluetooth device is defective or is not compatible.

5. Check for the navigation system hard error code.

Are there any navigation DTC's related to the Display or XM systems?

YES -

Go to step 6.

NO -

Go to step 9.

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

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

8. 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 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.

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

10. 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

11. 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, and the HandsFreeLink control unit. Replace the affected shielded harness.

NO -

Go to step 12.

12. 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 13.

NO -

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

13. 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 shield harness.

NO -

Go to step 14.

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

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

16. Check if the Bluetooth 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), or the XM receiver.

NO -

Go to step 17.

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

18. Disconnect the HandsFreeLink control unit 28P connector.

19. Reconnect AcuraLink control unit (XM receiver) connector A (32P) or XM receiver connector A (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 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.

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