HandsFreeLink System Symptom Troubleshooting - No sound when Bluetooth audio is used(With Normal Audio)

NOTE:

Check the vehicle 12 volt battery condition first .
Once the symptom is duplicated, contact the HFL customer service at 888-528-7876. Many HFL issues are related to the cell phone and not the HFL system.
Set the fader and the 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 customer's cell phone with Bluetooth is compatible with the Honda HFL system.
Make sure the cell phone's Bluetooth volume level is set to max.
Check the connectors for poor connections or loose terminals.

1. Determine possible failure area (audio system, HFL system):
- 1. Turn the vehicle to the ON mode.

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

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

YES

Go to step 2.

NO

Refer to AUDIO SYSTEM SYMPTOM TROUBLESHOOTING - NO SOUND IS HEARD FROM THE SPEAKER(S) (DISPLAY IS NORMAL) (WITH NAVIGATION AND STEREO AMPLIFIER) , Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal) (Without Navigation and Stereo Amplifier) , & Audio System Symptom Troubleshooting - No sound is heard from the speaker(s) (display is normal) (Without Navigation, With Stereo Amplifier) .
2. Determine possible failure area (pairing, others):
- 1. Pair an approved known-good cell phone with Bluetooth audio to the vehicle.

Can you pair an approved cell phone with Bluetooth audio?

YES

Go to step 3.

NO

Go to Bluetooth cell phone cannot be paired troubleshooting - Refer to: HandsFreeLink System Symptom Troubleshooting - HFL does not respond(With Normal Audio) HandsFreeLink System Symptom Troubleshooting - Bluetooth audio does not work(With Normal Audio) HandsFreeLink System Symptom Troubleshooting - Bluetooth cell phone cannot be paired(With Normal Audio) HandsFreeLink System Symptom Troubleshooting - The HFL prompts or incoming call cannot be heard or are weak (HFL information display is normal) (With Normal Audio) HandsFreeLink System Symptom Troubleshooting - No sound when Bluetooth audio is used(With Normal Audio) HandsFreeLink System Symptom Troubleshooting - HFL does not respond(With Navigation, With Display Audio) HandsFreeLink System Symptom Troubleshooting - HFL does not respond(Without Navigation, With Display Audio) .
3. Problem verification:
- 1. Check if the cell phone with Bluetooth audio can be played.

Does the Bluetooth audio play?

YES

Intermittent failure, the system is OK at this time, or there could be an issue with the customer's phone.

NO

The failure is duplicated, go to step 4.
4. Determine possible failure area (related unit, others):
- 1. Turn the vehicle to the OFF (LOCK) mode.

- 2. Disconnect the following connector.

Multi-information display unit A (32P)

- 3. Turn the vehicle to the ON mode.

- 4. Check if the cell phone with Bluetooth audio can be played.

Does the Bluetooth audio play?

YES

Replace the multi-information display unit .

NO

Go to step 5.

5. Shorted wire check (GA AUDIO lines) 1:

- 1. Turn the vehicle to the OFF (LOCK) mode.

- 2. Disconnect the following connectors.

Audio unit connector C (14P)

HandsFreeLink control unit 32P connector

- 3. Check for continuity between these test points and body ground individually.

Test condition	Vehicle OFF (LOCK) mode
	Multi-information display unit connector A (32P): disconnected
	Audio unit connector C (14P): disconnected
	HandsFreeLink control unit 32P connector: disconnected

Connector	Terminal
Audio unit connector C (14P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio)	No. 1
	No. 2
	No. 7
	No. 8

Is there continuity?

YES

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

The GA AUDIO wires are not shorted to ground. Go to step 6.

6. Shorted wire check (GA AUDIO lines) 2:

- 1. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Multi-information display unit connector A (32P): disconnected
	Audio unit connector C (14P): disconnected
	HandsFreeLink control unit 32P connector: disconnected

Test point 1 Audio unit connector C (14P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio)	Test points 2 Audio unit connector C (14P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio)
No. 1	No. 2, No. 3, No. 7, No. 8
No. 2	No. 3, No. 7, No. 8
No. 3	No. 7, No. 8
No. 7	No. 8

Is there continuity between any of the terminals?

YES

There is a short in the wires between the audio unit and the HandsFreeLink control unit. Replace the affected shielded harness.

The GA AUDIO wires are not shorted in the wires. Go to step 7.

7. Open wire check (GA AUDIO lines):

- 1. Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	Multi-information display unit connector A (32P): disconnected
	Audio unit connector C (14P): disconnected

HandsFreeLink control unit 32P connector: disconnected

Test point 1: Audio unit connector C (14P) - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio)Audio Unit Connector for Inputs and Outputs(With Normal Audio)	Test point 2: HandsFreeLink control unit 32P connector
No. 1	No. 5
No. 2	No. 6
No. 7	No. 21
No. 8	No. 22

Is there continuity?

YES

The GA AUDIO wires are OK. Go to step 8.

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

8. HandsFreeLink control unit check (substitution):
- 1. Substitute a known-good HandsFreeLink control unit.

- 2. Reconnect all the connectors, and recheck.

Does the symptom go away?

YES

Replace the original HandsFreeLink control unit .

NO

Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Display Audio)Audio Unit Removal and Installation(With Normal Audio) .