With Navigation

HandsFreeLink System Symptom Troubleshooting - The communication with cell phone is interrupted or changes

The communication with cell phone is interrupted or changes (with navigation)

NOTE:

- Check the vehicle battery condition first Battery Test.
- Check the connectors for poor connections or loose terminals.
- Check if the audio system functions normally.
- The connected device may not function properly when it is in the trunk or in a metallic case.
- Check online at www.acura.com/handsfreelink or call the HFL call center at 888-528-7876 to make sure the Bluetooth phone is compatible with the HFL system and that there are no known issues.

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

2. Check that the audio system is operating normally from different audio sources (AM, FM, XM, CD, navigation, etc.). Also make sure the front speakers and the center speaker operate normally.

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

YES -

Go to step 3.

NO -

Refer to the audio system troubleshooting.

3. Try and duplicate the symptom.

Can you duplicate the symptom?

YES -

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.�

NO -

Go to step 4.

4. Check for communication problems with the paired phone.

Does the symptom occur in a specific place or under a specific condition?

YES -

Operation is normal: Bluetooth audio is OK at this time. There is electric wave or other interference.�

NO -

Go to step 5.

5. If you have the client's Bluetooth phone, go to step 6. Otherwise, pair a known-good Bluetooth phone to the client's vehicle.

Can you pair the Bluetooth phone, and does it operate normally?

YES -

The client's Bluetooth phone is defective or not compatible.�

NO -

Go to step 7.

6. Pair the client's Bluetooth phone to a known-good vehicle.

Can you pair the Bluetooth phone, and does it operate normally?

YES -

Go to step 7.

NO -

The client's Bluetooth phone is defective or not compatible.�

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

8. Check the connections at the HandsFreeLink control unit 28P connector terminals.

Are the connections and terminals connected properly?

YES -

Go to step 9.

NO -

Repair the connection, and recheck.�

9. Disconnect the HandsFreeLink control unit 28P connector.

10. Disconnect the audio-navigation unit connector C (14P).

11. 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 wires between the audio-navigation unit 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 wire(s) between the audio-navigation unit and the HandsFreeLink control unit. Replace the affected shielded harness.�

NO -

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.�