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

Module Power, Ground, Serial Data, Indicator, Torque and Vehicle


Object Number: 876658  Size: FS
Master Electrical Component List
ABS Description and Operation
Wheel Speed Sensors and Traction Control Switch
Data Link Connector and SP205
TRAILER, ABS, ATC, BLOWER, ELEC BRK, CIGAR, ST/LP, VEH CHMSL, and VEH STOP fuses
IGN E TBC IGN 1, BACK UP, BTSI, and TRLR B/U Fuses
HVAC I, BRAKE, and TBC RUN Fuses
TAC Motor, APP Sensor, On/Off Switch and Stop Lamp Switch - 4.2L Only
Figure 2:

Traction Control Switch Chevy/GMC


Object Number: 743785  Size: FS
Master Electrical Component List
ABS Description and Operation
Traction Control Switch Oldsmobile
EBCM Power, Ground, and Serial Data
Figure 3:

Traction Control Switch -- Oldsmobile


Object Number: 893406  Size: FS
Master Electrical Component List
ABS Description and Operation
Wheel Speed Sensors and Traction Control Switch
G201 - 1 of 2
Antilock Brake System Schematic Icons
HVAC I, BRAKE, and TBC RUN Fuses
IGN E TBC IGN 1, BACK UP, BTSI, and TRLR B/U Fuses