The HFL Messages Cannot Be Heard or Are Weak (Without Navigation)
HandsFreeLink System Symptom Troubleshooting - The HFL messages cannot be heard or are weak
The HFL messages cannot be heard or are weak (without navigation)
NOTE: Check the vehicle battery condition first Battery Test.
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. Press and hold the HFL BACK button for more than 5 seconds.
Do you hear the message "The HFT is OK"?
YES -
Go to step 4.
NO -
Go to step 5.
4. Turn on the audio unit, and press and hold the HFL BACK button for more than 5 seconds.
Does the audio system mute when the message "The HFT is OK" is played?
YES -
Intermittent failure, the system is OK at this time.
NO -
Go to step 18.
5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
6. Connect the HDS to the DLC How to Troubleshoot the HandsFreeLink System.
7. Clear the DTCs with the HDS.
8. 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.
9. Check for DTCs.
Are there any DTCs indicated?
YES -
Repair the indicated DTCs.
NO -
Go to step 10.
10. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
11. Do the HFL Switch Test HFL Switch Test.
Is the switch OK?
YES -
Go to step 12.
NO -
Replace the audio remote-HFL switch Overhaul.
12. Remove the center console panel Center Console Panel Removal / Installation.
13. Disconnect the HandsFreeLink control unit 28P connector.
14. Disconnect audio unit connector D (20P).
15. Check for continuity between HandsFreeLink control unit 28P connector terminals No. 11 and No. 25 and audio unit connector D (20P) terminals No. 19 and No. 9 respectively.
Is there continuity?
YES -
Go to step 16.
NO -
There is an open in the wire(s) between the HandsFreeLink control unit and the audio unit. Replace the affected shielded harness.
16. Check for continuity between body ground and audio unit connector D (20P) terminals No. 9 and No. 19 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 17.
17. Check for continuity between the terminals of audio unit connector D (20P) 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 -
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.
18. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
19. Remove the center console panel Center Console Panel Removal / Installation.
20. Disconnect the HandsFreeLink control unit 28P connector.
21. Disconnect audio unit connector D (20P).
22. Check for continuity between HandsFreeLink control unit 28P connector terminal No. 3 and audio unit connector D (20P) terminal No. 20.
Is there continuity?
YES -
Go to step 23.
NO -
Repair an open in the wire between the HandsFreeLink control unit and the audio unit.
23. Check for continuity between body ground and HandsFreeLink control unit 28P connector terminal No. 3.
Is there continuity?
YES -
Repair a short to body ground in the wire between the HandsFreeLink control unit and the audio unit.
NO -
Substitute a known-good HandsFreeLink control unit Service and Repair, and recheck. If the symptom/indication goes away, replace the original the HandsFreeLink control unit Service and Repair. If the symptom/indication is still present, replace the audio unit Audio Unit Removal / Installation.