Circuit/System Description
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
The high pressure accumulator is attached to the brake pressure modulator valve and provides up to 2500 psi for use in apply the brakes. The electronic brake control module (EBCM) uses input from the high pressure accumulator sensor for more accurate control during braking and vehicle stability enhancement system (VSES) event. The high pressure accumulator sensor is internal to the brake pressure modulator valve (BPMV).