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

Component Location View


Object Number: 155169  Size: MF
(1)Right Front Wheel Speed Sensor
(2)Right Front Wheel Speed Sensor Jumper Harness
(3)ABS Harness to Right Front Wheel Speed Sensor Jumper Harness
(4)Master Cylinder
(5)Rear ABS to Right Rear Wheel Speed Sensor Jumper Harness
(6)Right Rear Wheel Speed Sensor
(7)Right Rear Wheel Speed Sensor Jumper Harness
(8)Rear Axle
(9) Left Rear Wheel Speed Sensor Jumper Harness
(10)Left Rear Wheel Speed Sensor
(11)Rear ABS to Left Rear Wheel Speed Sensor Jumper Harness
(12)Rear ABS to Body Harness Connector
(13)Left Rear Body Pass Through Connector
(14)ABS To I/P Harness Connector
(15)Electronic Brake Control Module/ Electronic Brake Traction Control Module (EBCM/EBTCM)
(16)I/P Harness
(17)TCS Switch
(18)Electronic Brake Control Relay
(19)Malfunction Indicator Lamp Traction Control Module
(20)ABS Harness
(21)ABS To Left Front Wheel Speed Sensor Jumper Harness Connector
(22)Brake Solenoid Valves
(23)Brake Modulator (ABS)
(24)TCS Modulator
(25)Left Front Wheel Speed Sensor
(26)Left Front Wheel Speed Sensor Jumper Harness
Figure 2:

LH Side of Engine Compartment


Object Number: 814616  Size: SH
(1)Electronic Brake Control Module (EBCM)
Figure 3:

Underneath Rear of Vehicle


Object Number: 447324  Size: LF
(1)In-line Connector C309, Electronic Brake Control Harness to LR Wheel Speed Sensor Harness
(2)Electronic Brake Control Harness
(3)In-line Connector C306, Electronic Brake Control Harness to RR Wheel Speed Sensor Harness
Figure 4:

RF Wheel (LF Wheel Speed Sensor Similar)


Object Number: 447321  Size: LF
(1)RF Wheel
(2)I/P Harness
(3)In-line Connector C172
(4)RF Wheel Speed Sensor Harness
(5)RF Wheel Speed Sensor Harness Connector to RF Wheel Speed Sensor (pigtail) (LF Similar)
Figure 5:

Front of Vehicle


Object Number: 850759  Size: LF
(1)Brake Fluid Level Switch
(2)Electronic Brake Control Module (EBCM), Brake Pressure Modulator Valve (BPMV)
(3)Engine Harness
(4)C171
(5)Wheel Speed Sensor (WSS)
(6)Brake Master Cylinder