Without Navigation
HandsFreeLink System Symptom Troubleshooting - The HFL messages and voice prompts cannot be heard or are weak
The HFL messages and voice prompts cannot be heard or are weak (without navigation)
NOTE: The HFL telephone sound comes from the front speakers, and the HFL voice prompts come from the center speaker.
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 and the speaker sound levels from different audio sources (AM/FM, XM, CD, navigation, etc.).
Does the audio system work normally and is the audio output from the speaker normal when playing various audio sources?
YES -
Go to step 3.
NO -
Refer to the audio system symptom troubleshooting.�
3. Connect the HDS to the DLC.
4. Clear the DTCs with the HDS.
5. Turn the ignition switch to LOCK (0) and then back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.
6. Check for DTCs.
Are there any DTCs indicated?
YES -
Repair the indicated DTCs.�
NO -
Go to step 7.
7. Press the HFL TALK button.
Are HFL messages played?
YES -
Go to step 8.
NO -
Go to step 9.
8. Press the TALK button.
Does the audio system mute when HFL messages are being played?
YES -
Intermittent failure, the audio unit is OK at this time.�
NO -
Go to step 11 on Bluetooth audio does not work troubleshooting.
9. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
10. Disconnect audio unit connector B (24P) and the HandsFreeLink control unit 28P connector.
11. Check for continuity between HandsFreeLink control unit 28P connector terminals No. 11 and No. 25 and audio unit connector B (24P) terminals No. 5 and No. 16 respectively.
Is there continuity?
YES -
Go to step 12.
NO -
There is an open in the wire(s) between the HandsFreeLink control unit and the audio unit. Replace the affected shielded harness.�
12. Check for continuity between body ground and audio unit connector B (24P) terminals No. 5 and No. 16 individually.
Is there continuity?
YES -
There is a short to body ground in the wire(s) between the HandsFreeLink control unit and the audio unit. Replace the affected shielded harness.�
NO -
Go to step 13.
13. Check for continuity between the terminals of audio unit connector B (24P) according to the table.
Is there continuity between any of the terminals?
YES -
There is a short in the wire(s) between the HandsFreeLink control unit and the audio unit. Replace the affected shielded harness.�
NO -
Go to step 14.
14. Remove the audio remote-HFL switch Overhaul, and disconnect 12P connector.
15. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 2 and audio remote-HFL switch 12P connector terminal No. 9.
Is there continuity?
YES -
Go to step 16.
NO -
Repair an open in the wire between the HandsFreeLink control unit and the audio remote-HFL switch. If the wire is OK, replace the cable reel Service and Repair.�
16. Disconnect audio unit connector A (24P).
NOTE: Eject all the CDs before disconnecting the audio unit to prevent damaging the CD player's load mechanism.
17. Check for continuity between audio remote-HFL switch 12P connector terminal No. 11 and audio unit connector A (24P) terminal No. 5.
Is there continuity?
YES -
Go to step 18.
NO -
Repair an open in the wire between the HandsFreeLink control unit and the audio remote-HFL switch. If the wire is OK, replace the cable reel Service and Repair.�
18. Do the HFL Switch Test HFL Switch Test.
Is the switch OK?
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. If the symptom/indication is still present, replace the audio unit Audio Unit Removal/Installation.�
NO -
Replace the audio remote-HFL switch Overhaul.�