Circuit Description
WARNING: This page is about a different car, the 1995 Oldsmobile Ninety-Eight and 1995 Buick Park Avenue. However, it is still accessible from the selected car via links, so may be relevant.
PCM uses serial data line to communicate with various other components and systems within vehicle. If PCM does not receive data from Electronic Brake and Traction Control Module (EBTCM), PCM will store Code P1573 indicating loss of communication with ABS/TCS system.