Technical Description (Comment)
WARNING: This page is about a different car, the 2009 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.
If the scan tool (M.U.T.-III Sub Assembly) can not communicate with the steering wheel sensor, the CAN bus lines may be defective. If the ASC system does not work, the steering wheel sensor or its power supply circuit may be defective.