Inspection Procedure 3: When The Speech Switch Is Pressed, The Voice Information Is Output, But The Voice Recognition Is Not Performed: Notes
WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Before replacing the hands free module, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.