Honda HR-V: Handsfreelink System Symptom Troubleshooting - HFL Does Not Respond (With Navigation)

NOTE:

• Check the vehicle 12 volt battery condition first.
• You must be able to duplicate the customer's concern to successfully diagnose the problem. If you cannot duplicate the issue, have the customer demonstrate it.
• Check the connectors for poor connections or loose terminals.

1. HFL switch operation check:

1. Turn the vehicle to the ON mode.
2. Go into the System Diagnostic Mode, and use the Hard Key to check the HFL switch.

Does all the HFL switch buttons respond?

YES

Go to step 2.

NO

Go to step 7.

2. Bluetooth module check:

1. Go into the System Diagnostic Mode, and use the HFT/Mic to check the Bluetooth Connection Diagnosis.

Does the status indicate OK?

YES

Go to step 3.

NO

Go to step 6.

3. Microphone operation check:

1. Go into the System Diagnostic Mode, and use the HFT/Mic to check the microphone.
2. Press the TALK button, then say "testing" in front of the microphone to check the Mic level.

Is the microphone level OK?

YES

Go to step 4.

NO

Go to step 6.

4. Cell phone connection check (known-good phone):

1. Turn the vehicle to the OFF (LOCK) mode then the ON mode.
2. Pair a known-good Bluetooth cell phone to the customer's vehicle.

Can you pair the Bluetooth cell phone?

YES: USA models

Go to HFL system troubleshooting.

YES: Except USA models

Go to step 5.

NO

Go to step 6.

5. Cell phone connection check (customer's phone).

Pair the customer's Bluetooth cell phone to the customer's vehicle.

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

YES

The HFL system is OK at this time. Inquire if there are any known issues for the problem.

NO

The customer's cell phone is defective or not compatible.

6. Audio panel check (substitution):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Substitute a known-good audio panel, and recheck.

Does the symptom go away?

YES

Replace the original audio panel.

NO

Replace the audio-navigation unit.

7. Determine possible failure area (Audio remote switch circuit, others):

1. Go into the System Diagnostic Mode, and use the Hard Key to check the audio remote switch.

Does all the audio remote switch buttons respond?

YES

Go to step 8.

NO

Go to Audio remote switch does not work properly (audio unit buttons work) (With Navigation) or Audio remote switch does not work properly (audio unit buttons work) (Without Navigation, Color Audio Type (5-inch Screen) ) or Audio remote switch does not work properly (audio unit buttons work) (Without Navigation, Display Audio Type (7-inch Screen) ).

8. HFL switch check:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Do the HFL Switch Test.

Is the HFL switch OK?

YES

Go to step 9.

NO

Replace the HFL switch.

9. Determine possible failure area (Audio-navigation unit, others):

1. Reconnect the HFL switch 7P connector.
2. Disconnect the following connectors.

NOTE: Eject the disc before disconnecting the audio-navigation unit to prevent damaging the CD player's load mechanism.

Audio-navigation unit connector A (24P)

Audio-navigation unit connector B (20P)

3. Measure the resistance between test points 1 and 2 as specified in the table.

Is the resistance OK?

YES

Go to step 10.

NO

Go to step 11.

10. Audio-navigation unit check (HFT/NAVI REMOTE SW line):

1. Disconnect the following connector.

HFL switch 7P connector

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

Is there continuity?

YES

Repair a short to body ground in the wire between the audio-navigation unit and the HFL switch. If the wire is OK, replace the cable reel.

NO

Replace the audio-navigation unit.

11. Open wire check (HFT/NAVI REMOTE SW line):

1. Disconnect the following connector.

HFL switch 7P connector

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

Is there continuity?

YES

The HFT/NAVI REMOTE SW wire is OK. Go to step 12.

NO

Repair an open in the wire between the audio-navigation unit and the HFL switch. If the wire is OK, replace the cable reel.

12. Open wire check (AUDIO GND line):

1. Disconnect the following connector.

Audio remote switch 12P connector

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

Is there continuity?

YES

Replace the audio remote switch.

NO

Repair an open in the wire between the audio remote switch and the HFL switch.

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