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

Electronic Brake Control Module


Object Number: 173447  Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)Ignition Feed (C1)
(3)Wheel Sensor (C2)
(4)Brake Pressure Differential Switch
(5)Battery (C3)
Figure 2:

Daytime Running Lamp Control Module


Object Number: 173449  Size: MF
(1)Data Link Connector (DLC)
(2)Daytime Running Lamp Control Module
Figure 3:

Wheel Speed Sensor Wiring


Object Number: 583087  Size: MF
(1)Wheel Speed Sensor, LF
(2)Wheel Speed Sensor, RF
(3)Connector C3
(4)Electronic Brake Control Module (EBCM)
Figure 4:

Power Brake Fluid Flow Alarm And Module


Object Number: 583090  Size: MF
(1)R208
(2)P/B Booster Fluid Flow Alarm
(3)D202
(4)C208
(5)C201
(6)Park Brake Warning Switch
(7)P/B Booster Fluid Flow And Pressure Alarm Delay Module (Cutaway-School Bus)
Figure 5:

Power Brake Booster System


Object Number: 173465  Size: MF
(1)P/B Booster Pressure Warning Switch
(2)P/B Booster Fluid Flow Switch
(3)Ground G112
(4)Power Steering Fluid Flow Actuator