Traction Control System Indicator(s): PCS
WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue. However, it is still accessible from the selected car via links, so may be relevant.
The IPC illuminates the PCS indicator when the electronic brake control module (EBCM) detects a malfunction in the precision control system (PCS). The IPC receives a class 2 message from the EBCM requesting illumination of both the PCS indicator and the TRAC OFF indicator. The EBCM disables both the precision control system and the traction control system.