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

Power, Ground, Brake Pressure Modulator Valve and Wheel Speed Sensors


Object Number: 1786853  Size: FS
Master Electrical Component List
ABS Description and Operation
Control Module References
Brake Pedal Position Sensor, Data Link Communications and Traction Control Switch
Underhood Fuse Block DRL, HI/BEAM and LO/BEAM Relays, ABS, DRL, EPS, IBCM 1, IBCM 2, LT HI BEAM, LT LOW BEAM, RT HI BEAM, RT LOW BEAM, PCM and TCM Fuses
Underhood Fuse Block RUN/CRANK Relay, ABS, IGN 1, INJ, ECM IGN 1 and TRANS Fuses
G109
Figure 2:

Brake Pedal Position Sensor, Data Link Communications and Traction Control Switch


Object Number: 1786861  Size: FS
Master Electrical Component List
ABS Description and Operation
Control Module References
Power, Ground, Brake Pressure Modulator Valve and Wheel Speed Sensors
Low Speed Serial Data
Power, Ground and High Speed Serial Data
Center Console and Seats
G304 and G305