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

Power and Ground


Object Number: 755655  Size: FS
Master Electrical Component List
ABS Description and Operation
Class 2 Communication
B+ Bus Bar
Manual Transmission - NV3500
Brake Switch Input (4.3L) and Tow/Haul Switch
Brake Switch, VSS Inputs (2.2L)
Brake Switch Input (4.3L) and Tow/Haul Switch
Clutch Pedal Position Switch, Stop Lamp Switch, PCM and Cruise Control Module
Brake Warning System Schematics
Figure 2:

Class 2 Communication


Object Number: 755656  Size: FS
Master Electrical Component List
ABS Description and Operation
Speed Sensor Signals
Power and Ground
SP201 (4.3L)
Figure 3:

Speed Sensor Signals


Object Number: 755657  Size: FS
Master Electrical Component List
ABS Description and Operation
Class 2 Communication
Splicing Twisted or Shielded Cable
Antilock Brake System Schematic Icons