Symptom Troubleshooting

Symptom Troubleshooting: The HFL digits do not go away from the audio-HVAC display after pressing the HFL BACK button

The HFL digits do not go away from the audio-HVAC display after pressing the HFL BACK button

1. Connect the HDS to the DLC.

2. Clear the DTCs with the HDS. Initial Inspection and Diagnostic Overview

3. 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.

4. Check for DTCs.

Are there any DTCs indicated?
YES - Repair the indicated DTCs.

NO - Go to step 5.


5. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

6. Substitute a known-good HandsFreeLink control unit, Service and Repair then turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and recheck the audio-navigation switch panel (with navigation) or audio-HVAC display unit (without navigation).

Are the messages cleared?
YES - Replace the original HandsFreeLink control unit. Service and Repair

NO - Replace the audio-navigation switch panel (with navigation) Audio-Navigation Switch Panel Removal/Installation (With Navigation) or the audio-HVAC display unit (without navigation). Audio-HVAC Display Unit Removal/Installation (Without Navigation)