WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Brake Fluid Pressure Sensor
Courtesy of GENERAL MOTORS CORP.
Fig 2: Electronic Brake Control Module (EBCM) C1
Courtesy of GENERAL MOTORS CORP.
Fig 3: Electronic Brake Control Module (EBCM) C2 (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Fig 4: Electronic Brake Control Module (EBCM) C2 (2 Of 2)