HandsFreeLink System Symptom Troubleshooting - No sound when Bluetooth audio is used
No sound when Bluetooth audio is used
NOTE:
Check the vehicle 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.
Make sure the customer's cell phone with Bluetooth is compatible with the Honda HFL system.
Make sure the cell phone is properly paired.
Check if the cell phone with Bluetooth audio functions normally.
Set the fader and the balance positions to the center.
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):

Determine possible failure area (audio system, HFL system)
?1.
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 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
     
     
     
2.
Determine possible failure area (pairing, others):

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
     
     
     
3.
Problem verification:

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: With XM
     
     
     
The failure is duplicated, go to step 4.
     
NO: Without XM
     
     
     
The failure is duplicated, go to step 5.
4.
Determine possible failure area (related unit, others) 1:

Determine possible failure area (related unit, others) 1
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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

Does the Bluetooth audio play?

     
YES
     
     
     
     
NO
     
     
     
Go to step 5.
5.
Determine possible failure area (related unit, others) 2:

Determine possible failure area (related unit, others) 2
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connector.

?3.
Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

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

Does the Bluetooth audio play?

     
YES
     
     
     
     
NO: With touch screen
     
     
     
Go to step 6.
     
NO: Without touch screen
     
     
     
6.
Shorted wire check (GA AUDIO lines) 1:

Shorted wire check (GA AUDIO lines) 1
?1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

?2.
Disconnect the following connectors.

?3.
Check for continuity between these test points and body ground individually.
Test condition
IG LOCK (0) or OFF mode
 
XM receiver connector A (14P) (with XM): disconnected
 
Multi-information display unit connector A (12P): disconnected
 
Audio unit connector D (12P): disconnected
 
HandsFreeLink control unit connector A (32P): disconnected

Connector
Test circuit
Terminal
Audio unit connector D (12P)
GA AUDIO L+
No. 9 (LT BLU)
GA AUDIO L?
No. 3 (PNK)
GA AUDIO R+
No. 10 (BRN)
GA AUDIO R
No. 4 (LT GRN)


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.?
     
NO
     
     
     
The GA AUDIO wires are not shorted to ground. Go to step 7.
7.
Shorted wire check (GA AUDIO lines) 2:

Shorted wire check (GA AUDIO lines) 2
?1.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0) or OFF mode
 
XM receiver connector A (14P) (with XM): disconnected
 
Multi-information display unit connector A (12P): disconnected
 
Audio unit connector D (12P): disconnected
 
HandsFreeLink control unit connector A (32P): disconnected

Test circuits
Connector: Audio-navigation unit connector C (14P)
Test point 1
Test points 2
SH GA AUDIO to
GA AUDIO L+, GA AUDIO L?, GA AUDIO R+, GA AUDIO R?
No. 5 (GRY)
No. 9 (LT BLU), No. 3 (PNK), No. 10 (BRN), No. 4 (LT GRN)
GA AUDIO L+ to
GA AUDIO L?, GA AUDIO R+, GA AUDIO R?
No. 9 (LT BLU)
No. 3 (PNK), No. 10 (BRN), No. 4 (LT GRN)
GA AUDIO L? to
GA AUDIO R+, GA AUDIO R?
No. 3 (PNK)
No. 10 (BRN), No. 4 (LT GRN)
GA AUDIO R+ to GA AUDIO R?
No. 10 (BRN)
No. 4 (LT GRN)


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.?
     
NO
     
     
     
The GA AUDIO wires are not shorted in the wires. Go to step 8.
8.
Open wire check (GA AUDIO lines):

Open wire check (GA AUDIO lines)
?1.
Check for continuity between test points 1 and 2.
Test condition
IG LOCK (0) or OFF mode
 
XM receiver connector A (14P) (with XM): disconnected
 
Multi-information display unit connector A (12P): disconnected
 
Audio unit connector D (12P): disconnected
 
HandsFreeLink control unit connector A (32P): disconnected

Test circuit
Test point 1:
Audio unit connector D (12P)
Test point 2:
HandsFreeLink control unit connector A (32P)
GA AUDIO L+
No. 9 (LT BLU)
No. 5 (LT BLU)
GA AUDIO L?
No. 3 (PNK)
No. 21 (PNK)
GA AUDIO R+
No. 10 (BRN)
No. 6 (BRN)
GA AUDIO R
No. 4 (LT GRN)
No. 22 (LT GRN)



Is there continuity?

     
YES
     
     
     
The GA AUDIO wires are OK. Go to step 9.
     
NO
     
     
     
There is an open in the wire(s) between the audio unit and the HandsFreeLink control unit. Replace the affected shielded harness.?
9.
HandsFreeLink control unit check (substitution):

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