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

Brake Control Module Connector C3 Locator View


Object Number: 203256  Size: LF
(1)Electronic Brake Control Module (EBCM)
(2)EBCM Connector C2
Figure 2:

Forward Wiring Sensor Locator Views


Object Number: 259030  Size: LF
(1)Wheel Speed Sensor, LH
(2)Ground G106
(3)Ground G118
(4)Wheel Speed Sensor, RH
Figure 3:

LH Front Fender Area Locator View


Object Number: 203298  Size: LF
(1)Electronic Brake Control Module Connector C1
(2)Electronic Brake Control Module Connector C3
(3)Connector C109 (Body Harness to 4WAL Harness)
(4)Connector C106 (Utility Body Harness to Forward Lamps Harness)
(5)Windshield Washer Pump, Rear (Utility)
(6)Ground G110
(7)Windshield Washer Pump (Pickup) or Windshield Washer Pump, Front (Utility)
(8)Underhood Bussed Electrical Center (UBEC)
(9)Connector C114 (Body Harness to Front Axle Switch, W/ Electric Shift 4WD)
(10)Brake Pressure Warning Switch
(11)Connector C108 (Body Harness to 4WD Extension Harness)
Figure 4:

Brake Control Module Locator View


Object Number: 203299  Size: LF
(1)Electronic Brake Control Module
(2)Electronic Brake Control Module Connector C1
(3)Electronic Brake Control Module Connector C3
(4)Brake Pressure Modulating Valve
(5)Brake Pressure Warning Switch
(6)Combination Valve