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

ABS-Hydraulic Harness to Electronic Brake Control Module (EBCM), Right Side Forward View


Object Number: 239943  Size: LF
(1)Electronic Brake Control Module (EBCM)
(2)EBCM C2 (24 cavities)
(3)EBCM C1 (2 cavities)
Figure 2:

Rear Wheel Speed Sensor (WSS)


Object Number: 240042  Size: LF
(1)Rear Wheel Speed Sensor (WSS)
Figure 3:

Front Wheel Speed Sensor (WSS)


Object Number: 231740  Size: LF
(1)Wheel Speed Sensor (WSS) - RF (LF Similar)
Figure 4:

Rear of Frame, Right Rear View


Object Number: 231761  Size: MF
(1)Wheel Speed Sensor (WSS) -- LR (RF Symilar)