GM Service Manual Online
For 1990-2009 cars only
Figure 1:

C100, C102, Underhood Fuse Block, EBCM, and Brake Pressure Differential Switch


Object Number: 1452750  Size: MF
(1)Forward Lamps Harness
(2)Underhood Fuse Block
(3)Electric Brake Control Module (EBCM)
(4)Brake Pressure Differential Switch
(5)Wheel Speed Sensor Harness
(6)Engine Harness
(7)C100
(8)Battery Positive Wire
(9)C102
Figure 2:

Fuse Block - Underhood, PCM, EBCM, and Aux Battery


Object Number: 696066  Size: MF
(1)Fuse Block - Underhood
(2)Connectors to PCM
(3)Powertrain Control Module (PCM)
(4)Left Side Fender
(5)EBCM Connector C1
(6)Auxiliary Battery, if equipped
(7)EBCM Connector C3
(8)Electronic Brake Control Module (EBCM)
(9)Engine Harness
Figure 3:

Park Brake Switch


Object Number: 374364  Size: MF
(1)Instrument Panel Wiring Harness
(2)Park Brake Switch Connector
(3)Park Brake Switch