HFT System Symptom Troubleshooting - The audio-HVAC subdisplay an HFT digits that does not go away after pressing the HFT BACK button
The audio-HVAC subdisplay an HFT digits that does not go away after pressing the HFT BACK button
  1. Connect the HDS to the DLC.
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0) and then to ON (II).
  1. Check for DTCs.
Are there any DTCs indicated?
YES -
Repair the indicated DTCs.■
NO -
Go to Step 5 .
  1. Turn the ignition to LOCK (0).
  1. Substitute a known-good Hands Free Telephone control unit, then turn the ignition switch to ON (II) and recheck the audio/navigation switch panel display (with navigation system) or center display unit (without navigation system).
Are the messages cleared?
YES -
Replace the original Hands Free Telephone control unit. ■
NO -
Replace the audio/navigation switch panel (with navigation system) or center display unit (without navigation system). ■