Inspection Procedure 3: The Error Code "ANTENNA ERROR" Is Displayed On The Display: 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 satellite radio tuner, antenna feeder cable, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.