[J Patrick]

I got a peek at the service manual. The Venice does not have a traditional off/on brake switch. It has a rotating arm connected to 2 variable resistors. One is connected to the BCM, the other to the ECM. The computer modules read the amount of brake pedal travel and make associated adjustments to brake and engine, light the stop lamps, etc. After either the BCM or ECM is serviced, the brake pedal position sensor should be recalibrated. The computer modules definitely interact with the sensor. Looks to be the same setup as in Chevy Cruze. I can see all of the OBD II codes (including most enhanced codes) when I tell my scanner it is looking at a 2013 Chevy Cruze. If you want to know more, Google "brake pedal position sensor chevy cruze". FWIW.