Do not pump the brakes. Just hold the brake pedal down firmly and let antilock work. A slight brake pedal pulsation might be felt or some noise noticed, but this is normal.
Chevrolet Cobalt Service & Repair Manual. Body Control System Diagnosis & Testing
The body control module (BCM)
has a bussed electrical center integrated into the housing. Body control
relays and fuses are installed directly on the BCM, which simplifies wiring
and junction blocks on the vehicle. The body control system consists of
the BCM and its associated ...