DTC U0159: Lost Communication With Parking Assist Control Module A: Description
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The Parking Aid Module (PAM) communicates with the scan tool through the Medium Speed Controller Area Network (MS-CAN). See PINPOINT TEST T: THE PARKING AID MODULE (PAM) DOES NOT RESPOND TO THE SCAN TOOL