Chart C1 - Brake Pressure Input: Notes
WARNING: This page is about a different car, the 1990 Oldsmobile Toronado, 1989 Oldsmobile Toronado, and 1988 Oldsmobile Toronado. However, it is still accessible from the selected car via links, so may be relevant.
Brake light operation is controlled by Body Computer Module (BCM) via the serial data link to Instrument Panel Cluster (IPC).